/* =============================================================
   EngineerPro rebuild — single stylesheet
   Palette: navy #0b1d3a, orange #ff7a18, cream #f8f5ef, ink #0a1424
   ============================================================= */

/* A11y: skip link + visually-hidden helper */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 8px 0;
  font-weight: 600;
  z-index: 9999;
}
.skip-link:focus { left: 0; outline: 3px solid var(--orange); }
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

:root {
  --navy: #0b1d3a;
  --navy-2: #102849;
  --ink: #0a1424;
  --orange: #ff7a18;
  --orange-2: #ffb066;
  --brand-blue: #1862ff; /* color sampled from the EngineerPro logo */
  --cream: #f8f5ef;
  --paper: #ffffff;
  --line: #e7e2d6;
  --muted: #6b7280;
  --text: #1c2533;
  --shadow-sm: 0 1px 2px rgba(10, 20, 36, 0.06), 0 2px 6px rgba(10, 20, 36, 0.05);
  --shadow-md: 0 8px 24px rgba(10, 20, 36, 0.08);
  --shadow-lg: 0 20px 60px rgba(10, 20, 36, 0.18);
  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1200px;
}

/* ======================= DARK THEME ======================= */
:root[data-theme="dark"] {
  --navy:        #f1f3f7;   /* swap: now headings are light */
  --navy-2:      #d6dde8;
  --orange:      #ff8c33;   /* slightly brighter for contrast on dark */
  --orange-2:    #ffc499;
  --brand-blue:  #4d8aff;
  --cream:       #16243d;   /* page subtle bg */
  --paper:       #1c2a45;   /* cards */
  --line:        #2c3f63;   /* borders */
  --muted:       #9aaabf;
  --text:        #e6edf6;
  --shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.28);
  --shadow-md:   0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg:   0 20px 60px rgba(0, 0, 0, 0.55);
}

:root[data-theme="dark"] body {
  background: #0a1424;
}

/* Hero already uses a fixed dark gradient — keep it bright but ensure it
   meets the body palette nicely. */
/* The hero / book-hero use `var(--navy)` in their gradients. In dark mode
   that variable is swapped to a light grey for headings, which would turn
   the hero background into light grey with white text on top — unreadable.
   Force the original navy gradient regardless of theme. */
:root[data-theme="dark"] .hero {
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(255, 122, 24, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(24, 98, 255, 0.22), transparent 60%),
    linear-gradient(180deg, #0b1d3a 0%, #102849 100%);
  color: #fff;
}
:root[data-theme="dark"] .book-hero {
  background:
    radial-gradient(900px 500px at 90% 0%, rgba(255, 122, 24, 0.18), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(24, 98, 255, 0.22), transparent 60%),
    linear-gradient(180deg, #0b1d3a 0%, #102849 100%);
  color: #fff;
}

/* All other "brand-navy on white-ish text" surfaces need the same treatment:
   --navy is swapped to a light grey in dark mode (so headings on white cards
   become legible), but these surfaces depend on a real dark background to
   contrast against their hardcoded white text. Force the brand navy in dark
   mode via per-selector overrides. */
:root[data-theme="dark"] .book-final__inner {
  background: linear-gradient(135deg, #0b1d3a 0%, #102849 100%);
  color: #fff;
}
:root[data-theme="dark"] .book-final__inner h2,
:root[data-theme="dark"] .book-final__inner p {
  color: #fff;
}
:root[data-theme="dark"] .book-final__inner p {
  color: rgba(255, 255, 255, 0.82);
}
:root[data-theme="dark"] .footer {
  background: linear-gradient(180deg, #0b1d3a 0%, #0a1424 100%);
  color: #fff;
}
/* Small navy-on-white-text badges scattered across the site */
:root[data-theme="dark"] .book-chapter__n,
:root[data-theme="dark"] .pager__btn.is-active,
:root[data-theme="dark"] .cv-card__icon,
:root[data-theme="dark"] .nav__links a.is-active,
:root[data-theme="dark"] .tag-chip.is-active,
:root[data-theme="dark"] .card--podcast .play {
  background: #0b1d3a;
  color: #fff;
}
/* Card cover placeholders (e.g. course/story without a real cover) */
:root[data-theme="dark"] .card--course__media,
:root[data-theme="dark"] .story-row__cover {
  background: #0b1d3a;
  color: #fff;
}
/* Dark ghost button — keep it dark in both themes for contrast on hero/book */
:root[data-theme="dark"] .btn--ghost-dark {
  background: #0b1d3a;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.18);
}
:root[data-theme="dark"] .btn--ghost-dark:hover {
  background: #102849;
  color: var(--orange-2);
}
:root[data-theme="dark"] .btn-mini:hover {
  background: #102849;
  color: #fff;
}

/* Nav background — make sure backdrop blur works in dark too */
:root[data-theme="dark"] .nav {
  background: rgba(10, 20, 36, 0.85);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

/* Stats card sits between hero and content — give it a dark glass effect */
:root[data-theme="dark"] .stats {
  background: rgba(28, 42, 69, 0.95);
  border: 1px solid var(--line);
}

/* Partner strip + courses pillars on home should pop slightly */
:root[data-theme="dark"] .partner-strip__link {
  background: linear-gradient(135deg, #1c2a45 0%, #18243a 100%);
  border-color: var(--line);
}
:root[data-theme="dark"] .partner-strip__tag {
  background: rgba(77, 138, 255, 0.18);
  color: #79a4ff;
}

/* Code-style or "kicker" badges with orange tint */
:root[data-theme="dark"] .badge,
:root[data-theme="dark"] .resource-block__kicker,
:root[data-theme="dark"] .stage__phase,
:root[data-theme="dark"] .roadmap-hero__eyebrow,
:root[data-theme="dark"] .book-hero__eyebrow,
:root[data-theme="dark"] .companies__label {
  /* These inherit color: var(--orange) already which is brighter in dark mode.
     Just adjust soft bg-tint variants. */
}
:root[data-theme="dark"] .companies__label {
  background: rgba(255, 255, 255, 0.06);
  color: var(--orange-2);
}

/* Cards with gradient bg need overrides */
:root[data-theme="dark"] .roadmap-extras__inner,
:root[data-theme="dark"] .partner-strip__link {
  background: linear-gradient(135deg, var(--paper) 0%, var(--cream) 100%);
}

/* Course / story / module cards */
:root[data-theme="dark"] .topic-pill,
:root[data-theme="dark"] .partner-page__mentors li,
:root[data-theme="dark"] .roadmap-benefits li,
:root[data-theme="dark"] .video-card,
:root[data-theme="dark"] .cv-card,
:root[data-theme="dark"] .logo-tile,
:root[data-theme="dark"] .book-chapter,
:root[data-theme="dark"] .pager__btn,
:root[data-theme="dark"] .faq-search,
:root[data-theme="dark"] .btn-mini {
  background: var(--paper);
  color: var(--text);
}
:root[data-theme="dark"] .story-row__cover--ph {
  background: linear-gradient(135deg, var(--paper), var(--cream));
}

/* Course cover placeholder + cv card icon */
:root[data-theme="dark"] .card--course__media,
:root[data-theme="dark"] .cv-card__icon {
  background: linear-gradient(135deg, #0e1c2e, #1c2a45);
}

/* Logos in marquee — bright on dark background */
:root[data-theme="dark"] .logo-tile {
  color: var(--text);
}

/* Story detail lead callout — adjust orange bg */
:root[data-theme="dark"] .story-detail__body p.story__lead {
  background: rgba(255, 122, 24, 0.12);
  color: var(--text);
}

/* Lang note (blue banner) */
:root[data-theme="dark"] .lang-note {
  background: rgba(77, 138, 255, 0.12);
  color: var(--text);
}

/* Format section callout */
:root[data-theme="dark"] .callout {
  background: rgba(255, 122, 24, 0.12);
  color: var(--text);
}

/* Article reading area on detail pages */
:root[data-theme="dark"] .article,
:root[data-theme="dark"] .story-detail {
  background: var(--paper);
  color: var(--text);
}
:root[data-theme="dark"] .article__body img {
  /* Dim white-bg screenshots so they don't burn eyes; user can hover/click. */
  filter: brightness(0.9);
}

/* FAQ accordion */
:root[data-theme="dark"] .faq-item {
  background: var(--paper);
  border-color: var(--line);
}
:root[data-theme="dark"] .faq-item__n {
  background: rgba(255, 122, 24, 0.18);
  color: var(--orange-2);
}

/* Avatar tile around the logo brand mark — invert in dark */
:root[data-theme="dark"] .brand__mark {
  background: var(--paper);
}

/* Selection color */
:root[data-theme="dark"] ::selection {
  background: var(--orange);
  color: #0a1424;
}

/* Image placeholder text color in cv-card */
:root[data-theme="dark"] .cv-card__body h4 {
  color: var(--navy);
}

/* OG share / logo tiles preserve their look but tone down */
:root[data-theme="dark"] .footer {
  background: #050d1d;
}

/* Mentor card avatar shadow needs less weight on dark */
:root[data-theme="dark"] .avatar--photo {
  border-color: var(--cream);
}

/* ===== Dark mode contrast fixes for hero / stats / authors ===== */
/* Hero, Roadmap hero, Book hero — text should pop on the navy gradient */
:root[data-theme="dark"] .book-hero__title,
:root[data-theme="dark"] .roadmap-hero__title,
:root[data-theme="dark"] .hero__title {
  color: #fff;
}
:root[data-theme="dark"] .book-hero__sub,
:root[data-theme="dark"] .hero__sub {
  color: rgba(255, 255, 255, 0.88);
}
:root[data-theme="dark"] .hero__sub strong {
  color: var(--orange-2);
}
:root[data-theme="dark"] .book-author__name {
  color: #fff;
}
:root[data-theme="dark"] .book-author__role {
  color: rgba(255, 255, 255, 0.78);
}
:root[data-theme="dark"] .book-author {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.22);
}
:root[data-theme="dark"] .book-author:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Stats card — labels need way more contrast on the dark glass card */
:root[data-theme="dark"] .stat__label,
:root[data-theme="dark"] .stat__since {
  color: rgba(230, 237, 246, 0.78);
}

/* Caption row below stats (the dot-separated "100% mentors · 17 …") */
:root[data-theme="dark"] .stats__caption {
  color: rgba(230, 237, 246, 0.78);
}
:root[data-theme="dark"] .stats__caption strong {
  color: #fff;
}
:root[data-theme="dark"] .stats__dot {
  color: rgba(255, 255, 255, 0.25);
}

/* Footer text + columns — already on dark bg, but tighten the link contrast */
:root[data-theme="dark"] .footer__cols a {
  color: rgba(230, 237, 246, 0.78);
}
:root[data-theme="dark"] .footer__cols a:hover {
  color: var(--orange-2);
}
:root[data-theme="dark"] .footer__tag {
  color: rgba(230, 237, 246, 0.6);
}
:root[data-theme="dark"] .footer__bottom {
  color: rgba(230, 237, 246, 0.5);
  border-top-color: rgba(255, 255, 255, 0.08);
}
:root[data-theme="dark"] .footer__addr {
  color: rgba(230, 237, 246, 0.7);
}

/* "Section head" intro paragraphs (the muted descriptor under each H2) */
:root[data-theme="dark"] .section__head p {
  color: var(--muted);
}

/* Story-row byline + snippet readability */
:root[data-theme="dark"] .story-row__byline {
  color: var(--muted);
}
:root[data-theme="dark"] .story-row__snippet {
  color: var(--text);
}

/* Mentor card text */
:root[data-theme="dark"] .card--mentor .mentor__line--current .mentor__role {
  color: var(--text);
}
:root[data-theme="dark"] .card--mentor h3 {
  color: var(--navy);  /* in dark this is light */
}

/* Course / Story / Roadmap module pill text */
:root[data-theme="dark"] .topic-pill {
  color: var(--text);
}

/* Tag chips on filter bar */
:root[data-theme="dark"] .tag-chip {
  color: var(--text);
}
:root[data-theme="dark"] .tag-chip:hover {
  color: var(--orange);
}
:root[data-theme="dark"] .tag-chip.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: #1a1f2e;
}
:root[data-theme="dark"] .tag-chip.is-active:hover {
  background: var(--orange-2);
  border-color: var(--orange-2);
  color: #1a1f2e;
}

/* Pager buttons */
:root[data-theme="dark"] .pager__btn {
  color: var(--text);
}
:root[data-theme="dark"] .pager__btn.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: #1a1f2e;
}

/* FAQ accordion question text */
:root[data-theme="dark"] .faq-item__qtext {
  color: var(--navy); /* in dark this is light */
}
:root[data-theme="dark"] .faq-item__a {
  color: var(--text);
}
:root[data-theme="dark"] .faq-item__a strong {
  color: #fff;
}

/* Article body inside dark cards */
:root[data-theme="dark"] .article__body,
:root[data-theme="dark"] .story-detail__body {
  color: var(--text);
}
:root[data-theme="dark"] .article__body strong,
:root[data-theme="dark"] .story-detail__body strong {
  color: #fff;
}
:root[data-theme="dark"] .article__head h1,
:root[data-theme="dark"] .article__body h2,
:root[data-theme="dark"] .article__body h3,
:root[data-theme="dark"] .story-detail__head h1,
:root[data-theme="dark"] .story-detail__body h2,
:root[data-theme="dark"] .story-detail__body h3 {
  color: #fff;
}
:root[data-theme="dark"] .article__lede {
  color: var(--muted);
}

/* Lead callout on story page */
:root[data-theme="dark"] .story-detail__body p.story__lead {
  color: #fff;
}

/* Course card titles + body */
:root[data-theme="dark"] .card--course__title {
  color: var(--navy);
}
:root[data-theme="dark"] .card--course p {
  color: var(--muted);
}

/* Mentor / podcast / partner card text already inherits but ensure podcast title */
:root[data-theme="dark"] .card--podcast h3 {
  color: var(--navy);
}
:root[data-theme="dark"] .card--podcast .duration {
  color: var(--text);
}
:root[data-theme="dark"] .podcast__blurb {
  color: var(--muted);
}

/* Roadmap stage title + sub + goal */
:root[data-theme="dark"] .stage__title {
  color: var(--navy);
}
:root[data-theme="dark"] .stage__subtitle {
  color: var(--muted);
}
:root[data-theme="dark"] .stage__goal {
  color: var(--text);
}
:root[data-theme="dark"] .module__head h3 {
  color: var(--navy);
}
:root[data-theme="dark"] .module__blurb {
  color: var(--muted);
}

/* Resources block + CV card */
:root[data-theme="dark"] .resource-block__head h3,
:root[data-theme="dark"] .cv-card__body h4,
:root[data-theme="dark"] .video-card__meta h4,
:root[data-theme="dark"] .cv-sample__copy h4 {
  color: var(--navy);
}
:root[data-theme="dark"] .video-card__idx {
  color: var(--muted);
}

/* Brand & nav links */
:root[data-theme="dark"] .brand {
  color: var(--navy);
}
:root[data-theme="dark"] .nav__links a {
  color: var(--navy);
}
:root[data-theme="dark"] .nav__links a:hover {
  background: rgba(255, 255, 255, 0.08);
}
:root[data-theme="dark"] .nav__links a.is-active {
  background: var(--orange);
  color: #1a1f2e;
}

/* Lang switch */
:root[data-theme="dark"] .lang-switch {
  background: rgba(255, 255, 255, 0.08);
  color: var(--navy);
  border-color: var(--line);
}
:root[data-theme="dark"] .lang-switch:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: #1a1f2e;
}

/* Btn ghost on dark hero needs better border */
:root[data-theme="dark"] .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}
:root[data-theme="dark"] .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
}
:root[data-theme="dark"] .btn--ghost-dark {
  background: var(--paper);
  color: var(--navy);
  border-color: var(--line);
}

/* Partner page text */
:root[data-theme="dark"] .partner-page__title h3 {
  color: var(--brand-blue);
}
:root[data-theme="dark"] .partner-page__tagline {
  color: var(--navy);
}
:root[data-theme="dark"] .partner-page__quote {
  color: var(--muted);
}
:root[data-theme="dark"] .partner-page__group h4 {
  color: var(--orange);
}
:root[data-theme="dark"] .partner-page__mentors strong {
  color: var(--navy);
}

/* Book chapter cards */
:root[data-theme="dark"] .book-chapter__title {
  color: var(--navy);
}

/* Roadmap benefits */
:root[data-theme="dark"] .roadmap-benefits li {
  color: var(--text);
}
:root[data-theme="dark"] .roadmap-extras__inner h3 {
  color: var(--navy);
}
:root[data-theme="dark"] .roadmap-extras__inner li {
  color: var(--text);
}

/* Format card titles + body */
:root[data-theme="dark"] .card--format h3,
:root[data-theme="dark"] .card--pillar h3 {
  color: var(--navy);
}
:root[data-theme="dark"] .card--format p,
:root[data-theme="dark"] .card--pillar p {
  color: var(--muted);
}
:root[data-theme="dark"] .ticks li {
  color: var(--text);
}
:root[data-theme="dark"] .callout {
  color: var(--text);
}
:root[data-theme="dark"] .format-illu figcaption {
  color: var(--muted);
}
:root[data-theme="dark"] .format-illu figcaption strong {
  color: #fff;
}

/* Cover overlay tag on story rows stays high-contrast in dark too */
:root[data-theme="dark"] .story-row__cover-tag {
  background: rgba(255, 122, 24, 0.95);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--orange);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  color: var(--navy);
  margin: 0 0 0.5rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4.2vw, 3.4rem);
}
h2 {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
}
h3 {
  font-size: 1.2rem;
}

p {
  margin: 0 0 0.75rem;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.muted {
  color: var(--muted);
}

/* ===================== NAV ===================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 245, 239, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid rgba(10, 20, 36, 0.07);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--navy);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
}
.brand:hover {
  text-decoration: none;
}
.brand__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #ffffff;
  box-shadow: 0 6px 16px rgba(24, 98, 255, 0.18), 0 1px 2px rgba(10, 20, 36, 0.08);
  overflow: hidden;
}
.brand__mark img {
  width: 78%;
  height: 78%;
  object-fit: contain;
  display: block;
}
.brand--footer .brand__mark {
  background: #ffffff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}
.brand__text strong {
  color: var(--orange);
  font-weight: 700;
}

.nav__links {
  display: flex;
  gap: 0.25rem;
}
.nav__links a {
  color: var(--navy);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav__links a:hover {
  text-decoration: none;
  background: rgba(11, 29, 58, 0.06);
}
.nav__links a.is-active {
  background: var(--navy);
  color: #fff;
}

.theme-switch {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-left: 0.5rem;
  padding: 0;
  background: rgba(11, 29, 58, 0.06);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background 0.2s, transform 0.12s, border-color 0.2s;
  flex: 0 0 auto;
}
.theme-switch:hover {
  background: var(--navy);
  border-color: var(--navy);
  transform: translateY(-1px);
}
:root[data-theme="dark"] .theme-switch {
  background: rgba(255, 255, 255, 0.08);
}
:root[data-theme="dark"] .theme-switch:hover {
  background: var(--orange);
  border-color: var(--orange);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  margin-left: 0.4rem;
  background: rgba(11, 29, 58, 0.06);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--navy);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.12s;
  flex: 0 0 auto;
}
.lang-switch:hover {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
  transform: translateY(-1px);
}
.lang-switch__flag {
  font-size: 1rem;
  line-height: 1;
}
@media (max-width: 860px) {
  .theme-switch {
    margin-left: auto;
  }
  .lang-switch {
    margin-right: 0.5rem;
  }
}

.nav__toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
  transition: transform 0.25s, opacity 0.25s;
}
.nav__toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 860px) {
  .nav__toggle {
    display: block;
  }
  .nav__links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--cream);
    flex-direction: column;
    padding: 0.5rem 1rem 1rem;
    gap: 0.25rem;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav__links.is-open {
    display: flex;
  }
  .nav__links a {
    width: 100%;
  }
}

/* ===================== HERO ===================== */
.hero {
  background: radial-gradient(
      1200px 600px at 90% -10%,
      rgba(255, 122, 24, 0.18),
      transparent 60%
    ),
    radial-gradient(900px 500px at -10% 110%, rgba(24, 98, 255, 0.22), transparent 60%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 5rem 0 6rem;
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 860px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }
}

.hero__eyebrow {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--orange-2);
  margin-bottom: 1.25rem;
}
.hero__since {
  margin-left: 0.35rem;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 400;
  letter-spacing: 0.03em;
}
.hero__title {
  color: #fff;
  margin: 0 0 1rem;
}
.grad {
  background: linear-gradient(90deg, var(--orange), #ff5b48);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 36rem;
  margin-bottom: 2rem;
}
.hero__sub strong {
  color: var(--orange-2);
  font-weight: 600;
}
.hero__cta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, color 0.2s;
  cursor: pointer;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}
.btn--primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 122, 24, 0.35);
}
.btn--primary:hover {
  background: #ff8c33;
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* hero art: floating company chips */
.hero__art {
  position: relative;
  height: 360px;
}
.hero__orb {
  position: absolute;
  inset: 30px 30px auto auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--orange), #ff3b2d 60%, #6b1e10 100%);
  filter: blur(2px);
  opacity: 0.7;
  box-shadow: 0 30px 80px rgba(255, 122, 24, 0.4), inset 0 -20px 40px rgba(0, 0, 0, 0.3);
  animation: orbFloat 8s ease-in-out infinite;
}
.hero__chip {
  position: absolute;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-weight: 500;
  font-size: 0.9rem;
  animation: chipFloat 6s ease-in-out infinite;
  animation-delay: var(--d, 0s);
}
.hero__chip:nth-child(1) {
  top: 4%;
  left: 4%;
}
.hero__chip:nth-child(2) {
  top: 0%;
  right: 30%;
}
.hero__chip:nth-child(3) {
  top: 6%;
  right: 4%;
}
.hero__chip:nth-child(4) {
  top: 26%;
  left: 0;
}
.hero__chip:nth-child(5) {
  top: 30%;
  right: 0%;
}
.hero__chip:nth-child(6) {
  top: 52%;
  left: 8%;
}
.hero__chip:nth-child(7) {
  top: 56%;
  right: -2%;
}
.hero__chip:nth-child(8) {
  bottom: 10%;
  left: 0%;
}
.hero__chip:nth-child(9) {
  bottom: 4%;
  right: 28%;
}
.hero__chip:nth-child(10) {
  bottom: 14%;
  right: 6%;
}
@keyframes chipFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
@keyframes orbFloat {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-10px, -15px) scale(1.03);
  }
}

/* ===================== STATS ===================== */
.stats-wrap {
  margin-top: -3rem;
  position: relative;
  z-index: 2;
}
.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  background: var(--paper);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  box-shadow: var(--shadow-lg);
}
.stats__caption {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.stats__caption strong {
  color: var(--navy);
  font-weight: 700;
}
.stats__dot {
  color: var(--line);
}
@media (max-width: 640px) {
  .stats__dot { display: none; }
}
@media (max-width: 1024px) {
  .stats {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 640px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}
.stat {
  text-align: center;
}
.stat__num {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.1;
}
.stat__label {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.35;
}
.stat__since {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  opacity: 0.75;
  margin-top: 0.15rem;
}

/* ===================== COMPANY LOGO MARQUEE ===================== */
.companies {
  padding: 3.25rem 0 1rem;
  overflow: hidden;
}
.companies__head {
  text-align: center;
  margin-bottom: 1.5rem;
}
.companies__label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(11, 29, 58, 0.05);
}

/* Marquee: container clips horizontally, edges fade out.
   The track holds 2 copies of the logo list and translates -50% over time. */
.logo-marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0,
    #000 60px,
    #000 calc(100% - 60px),
    transparent 100%
  );
          mask-image: linear-gradient(
    to right,
    transparent 0,
    #000 60px,
    #000 calc(100% - 60px),
    transparent 100%
  );
}
.logo-marquee__track {
  display: flex;
  gap: 0.85rem;
  width: max-content;
  animation: marquee 38s linear infinite;
  will-change: transform;
}
.logo-marquee:hover .logo-marquee__track {
  animation-play-state: paused;
}
@keyframes marquee {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .logo-marquee__track {
    animation: none;
  }
}

.logo-tile {
  flex: 0 0 auto;
  width: 160px;
  height: 70px;
  display: grid;
  place-items: center;
  padding: 0.5rem 1rem;
  border-radius: 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--navy);
  transition: border-color 0.18s, box-shadow 0.18s, color 0.18s;
}
.logo-tile:hover {
  border-color: rgba(255, 122, 24, 0.45);
  box-shadow: var(--shadow-sm);
  color: var(--orange);
}
.logo-tile__svg {
  display: block;
  width: 100%;
  height: 36px;
  background: currentColor;
  -webkit-mask-repeat: no-repeat;
          mask-repeat: no-repeat;
  -webkit-mask-position: center;
          mask-position: center;
  -webkit-mask-size: contain;
          mask-size: contain;
}
.logo-tile__wordmark {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  line-height: 1;
  text-align: center;
}
@media (max-width: 640px) {
  .logo-tile { width: 130px; height: 60px; }
  .logo-marquee__track { animation-duration: 30s; gap: 0.6rem; }
}

/* ===================== PARTNERS ===================== */
/* Home page: tiny one-line teaser strip */
.partner-strip {
  padding: 2rem 1.25rem 0;
}
.partner-strip__link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  background: linear-gradient(135deg, #ffffff 0%, #f4f1ea 100%);
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand-blue, #1862ff);
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  color: inherit;
  transition: border-color 0.18s, transform 0.15s;
}
.partner-strip__link:hover {
  border-color: var(--brand-blue, #1862ff);
  transform: translateY(-1px);
}
.partner-strip__tag {
  flex: 0 0 auto;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: rgba(24, 98, 255, 0.1);
  color: #1862ff;
}
.partner-strip__text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--text);
}
.partner-strip__text strong {
  color: #1862ff;
}
.partner-strip__cta {
  flex: 0 0 auto;
  font-size: 0.88rem;
  font-weight: 600;
  color: #1862ff;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .partner-strip__cta { display: none; }
}

/* Partners route — full grid of partner cards */
.partners-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.partner-page {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid #1862ff;
}
@media (max-width: 640px) {
  .partner-page { padding: 1.5rem 1.25rem; }
}
.partner-page__head {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.partner-page__logo {
  flex: 0 0 96px;
  width: 96px;
  height: 96px;
  object-fit: contain;
  background: #fff;
  border-radius: 16px;
  padding: 8px;
  box-shadow: 0 6px 16px rgba(24, 98, 255, 0.12);
}
.partner-page__title {
  flex: 1;
  min-width: 220px;
}
.partner-page__title h3 {
  margin: 0;
  font-size: 1.5rem;
  color: #1862ff;
}
.partner-page__tagline {
  margin: 0.25rem 0 0.5rem;
  font-size: 1.02rem;
  color: var(--navy);
  font-weight: 500;
}
.partner-page__quote {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}
.partner-page__meta {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.partner-page__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  background: var(--cream);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem;
  margin: 0 0 1.5rem;
}
@media (max-width: 640px) {
  .partner-page__stats { grid-template-columns: repeat(2, 1fr); }
}

.partner-page__desc {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--text);
  margin: 0 0 1.5rem;
}

.partner-page__group {
  margin-bottom: 1.5rem;
}
.partner-page__group h4 {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
}
.partner-page__mentors {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.5rem;
}
.partner-page__mentors li {
  padding: 0.55rem 0.8rem;
  background: var(--cream);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text);
}
.partner-page__mentors strong {
  color: var(--navy);
}
.partner-page__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.partner-page__cta {
  display: flex;
  justify-content: flex-start;
  margin-top: 1rem;
}

.partners-soon {
  text-align: center;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.partners-soon a {
  font-weight: 600;
}

/* ===================== SECTIONS ===================== */
.section {
  padding: 4rem 1.25rem;
}
.section__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}
.section__head p {
  color: var(--muted);
  font-size: 1.05rem;
}

/* ===================== GRID + CARDS ===================== */
.grid {
  display: grid;
  gap: 1.25rem;
}
.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}
.grid--mentors {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.grid--podcast {
  grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 1024px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4,
  .grid--podcast {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 122, 24, 0.35);
}

.card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 122, 24, 0.12), rgba(255, 122, 24, 0.04));
  color: var(--orange);
  display: grid;
  place-items: center;
  font-size: 1.4rem;
}

/* ===================== course card (with cover) ===================== */
.card--course {
  padding: 0;
  overflow: hidden;
}
.card--course__media {
  display: block;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  position: relative;
  overflow: hidden;
}
.card--course__cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.card--course:hover .card--course__cover {
  transform: scale(1.04);
}
.card--course__cover--placeholder {
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.6);
}
.card--course__body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.card--course .badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 122, 24, 0.12);
  color: var(--orange);
}
.card--course__title {
  color: var(--navy);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  text-decoration: none;
  display: block;
  line-height: 1.3;
}
.card--course__title:hover {
  color: var(--orange);
  text-decoration: none;
}
.card--course p {
  color: var(--muted);
  font-size: 0.94rem;
  margin: 0;
}
.card--course__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.25rem;
}
.tag-pill {
  font: inherit;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: rgba(11, 29, 58, 0.06);
  color: var(--navy);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.tag-pill:hover {
  background: rgba(255, 122, 24, 0.14);
  color: var(--orange);
}
.card--course .card__link {
  font-size: 0.92rem;
  font-weight: 600;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* ----- filter bar above the course grid ----- */
.tag-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
  margin: 0 auto 2rem;
  max-width: 920px;
}
.tag-chip {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--navy);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.12s;
}
.tag-chip:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-1px);
}
.tag-chip.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.tag-chip.is-active:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}
.tag-chip--toggle {
  background: transparent;
  border-style: dashed;
  color: var(--muted);
  font-weight: 500;
}
.tag-chip--toggle:hover {
  background: transparent;
  border-color: var(--orange);
  color: var(--orange);
}

/* ===================== article (course detail) ===================== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--navy);
  font-weight: 500;
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  background: rgba(11, 29, 58, 0.06);
  text-decoration: none;
  transition: background 0.2s;
}
.back-link:hover {
  background: rgba(11, 29, 58, 0.12);
  text-decoration: none;
}

.article {
  max-width: 820px;
  margin: 0 auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.5rem 2rem 3rem;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 640px) {
  .article {
    padding: 1.5rem 1.25rem 2rem;
  }
}
.article__head {
  margin-bottom: 1.5rem;
  text-align: center;
}
.article__head .badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 122, 24, 0.12);
  color: var(--orange);
  display: inline-block;
  margin-bottom: 0.75rem;
}
.article__head h1 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin: 0.3rem 0 0.75rem;
}
.article__lede {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 60ch;
  margin: 0 auto 1rem;
}
.article__meta a {
  font-size: 0.88rem;
  font-weight: 500;
}
.article__cta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.lang-note {
  margin: 0 0 1.5rem;
  padding: 0.75rem 1rem;
  background: rgba(24, 98, 255, 0.08);
  border-left: 3px solid #1862ff;
  border-radius: 0 8px 8px 0;
  font-size: 0.92rem;
  color: var(--navy);
}
.article__cover {
  display: block;
  width: 100%;
  border-radius: var(--radius-sm);
  margin: 1.5rem 0 2rem;
  box-shadow: var(--shadow-md);
}
.article__body {
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.75;
}
.article__body h2 {
  font-size: 1.5rem;
  margin: 2.25rem 0 0.75rem;
  color: var(--navy);
}
.article__body h3 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.5rem;
  color: var(--navy);
}
.article__body p {
  margin: 0 0 1rem;
}
.article__body ul,
.article__body ol {
  padding-left: 1.4rem;
  margin: 0 0 1.25rem;
}
.article__body li {
  margin-bottom: 0.4rem;
}
.article__body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 1.25rem auto;
  display: block;
  box-shadow: var(--shadow-sm);
}
.article__body a {
  color: var(--orange);
  word-break: break-word;
}
.article__body strong {
  color: var(--navy);
}
.embed-16x9 {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  margin: 1.5rem 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000;
  box-shadow: var(--shadow-md);
}
.embed-16x9 iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* mentor card */
.card--mentor {
  /* Grid layout with explicit rows: avatar / name / body (fills remaining) / cta.
     This guarantees the LinkedIn CTA sits at the same y in every card of the
     same row, no matter how many lines the role / ex-line take. */
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  justify-items: center;
  text-align: center;
  padding: 1.75rem 1.25rem 1.5rem;
  gap: 0.45rem;
  min-height: 300px;
}
/* Wrap the 1-2 role lines into a single body cell that fills the 1fr row. */
.card--mentor .mentor__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  width: 100%;
  /* Sit at the top of the 1fr cell so spacing above the CTA is consistent. */
  align-self: start;
}
.avatar {
  box-sizing: border-box;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  color: #fff;
  margin-bottom: 0.4rem;
  box-shadow: inset 0 -8px 16px rgba(0, 0, 0, 0.15);
  border: 2px solid transparent;
}
.avatar--photo {
  object-fit: cover;
  display: block;
  background: var(--cream);
  box-shadow: 0 4px 12px rgba(10, 20, 36, 0.18);
  border: 2px solid #fff;
}
.card--mentor h3 {
  margin: 0.1rem 0 0.2rem;
  font-size: 1.05rem;
  line-height: 1.25;
}
.mentor__line {
  font-size: 0.88rem;
  line-height: 1.4;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem;
}
.mentor__line--current .mentor__role {
  color: var(--navy);
  font-weight: 600;
}
.mentor__line--current .mentor__company {
  color: var(--orange);
  font-weight: 600;
}
.mentor__sep {
  color: var(--muted);
  font-weight: 400;
}
.mentor__line--ex {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: -0.1rem;
}
.mentor__ex {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  background: rgba(11, 29, 58, 0.07);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-right: 0.2rem;
}

.mentor__cta {
  /* The card uses CSS Grid with `grid-template-rows: auto auto 1fr auto` —
     the CTA sits in the last `auto` row, which is anchored to the bottom
     because the 1fr row above absorbs all leftover space. */
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: #0a66c2;
  color: #fff !important;
  font-weight: 600;
  font-size: 0.82rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  box-shadow: 0 6px 14px rgba(10, 102, 194, 0.25);
}
.mentor__cta:hover {
  background: #0858a5;
  text-decoration: none;
  transform: translateY(-1px);
}
.mentor__cta-icon {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  background: #fff;
  color: #0a66c2;
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 800;
  font-style: normal;
  font-family: "Inter", sans-serif;
}
.mentor__cta--disabled {
  align-self: center;
  background: rgba(11, 29, 58, 0.07);
  color: var(--muted) !important;
  cursor: default;
  box-shadow: none;
}
.mentor__cta--disabled:hover {
  background: rgba(11, 29, 58, 0.07);
  transform: none;
}

/* podcast card (now an anchor) */
.card--podcast {
  flex-direction: row;
  align-items: stretch;
  gap: 1rem;
  padding: 1.25rem;
  text-decoration: none !important;
  color: inherit;
}
.card--podcast:hover {
  border-color: rgba(255, 122, 24, 0.45);
}
.card--podcast .play {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: var(--orange);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  box-shadow: 0 8px 18px rgba(11, 29, 58, 0.25);
  transition: transform 0.2s;
}
.card--podcast:hover .play {
  transform: scale(1.05);
}
.card--podcast .meta {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}
.card--podcast h3 {
  font-size: 1rem;
  line-height: 1.35;
  color: var(--navy);
}
.card--podcast:hover h3 {
  color: var(--orange);
}
.card--podcast .row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.78rem;
  color: var(--muted);
  flex-wrap: wrap;
}
.card--podcast .series {
  background: rgba(255, 122, 24, 0.12);
  color: var(--orange);
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-weight: 600;
}
.card--podcast .duration {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--navy);
}
.podcast__blurb {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.podcast__cta {
  margin-top: auto;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--orange);
}

/* format / contact */
.card--pillar h3,
.card--format h3,
.card--contact h3 {
  margin-top: 0.4rem;
}
.card--contact--link {
  text-decoration: none !important;
  color: inherit;
  cursor: pointer;
}
.card--contact--link:hover h3 {
  color: var(--orange);
}
.card__cta {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--orange);
}
.card__icon--fb {
  background: linear-gradient(135deg, #1877f2, #0a5cd6);
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-style: italic;
  font-weight: 800;
  font-size: 1.4rem;
}
.card__icon--msg {
  background: linear-gradient(135deg, #00b2ff, #006aff);
  color: #fff;
}
.card__icon--zalo {
  background: linear-gradient(135deg, #1a8cff, #0068ff);
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
}
.card__icon--yt {
  background: linear-gradient(135deg, #ff0000, #cc0000);
  color: #fff;
}
.card__icon--spotify {
  background: #1db954;
  color: #fff;
}
.card__icon--substack {
  background: #ff6719;
  color: #fff;
}
.card__icon--viblo {
  background: linear-gradient(135deg, #20a4f3, #0f6db8);
  color: #fff;
}
.card--format {
  position: relative;
  overflow: hidden;
}
.format__badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  color: #fff;
}
.format__badge--zoom {
  background: #2d8cff;
}
.format__badge--discord {
  background: #5865f2;
}
.ticks {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}
.ticks li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.ticks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--orange);
  font-weight: 700;
}
.callout {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 122, 24, 0.08);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius-sm);
  color: var(--navy);
}

/* Hình thức học — illustration above the 2 cards */
.format-illu {
  margin: 0 auto 2.5rem;
  max-width: 920px;
  text-align: center;
}
.format-illu img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: block;
}
.format-illu figcaption {
  margin-top: 0.85rem;
  font-size: 0.92rem;
  color: var(--muted);
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}
.format-illu figcaption strong {
  color: var(--navy);
}

/* ===================== FOOTER ===================== */
.footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.8);
  margin-top: 4rem;
  padding: 3rem 0 1.5rem;
}
.footer .brand {
  color: #fff;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.1fr 2fr 1.1fr;
  gap: 2.5rem;
  align-items: start;
}
.footer__brand .brand {
  color: #fff;
}
.footer__tag {
  color: rgba(255, 255, 255, 0.55);
  margin-top: 0.6rem;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.footer__fanpage h4 {
  color: #fff;
  margin: 0 0 0.6rem;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}
.fb-page-wrap {
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}
.fb-page-wrap iframe {
  display: block;
  max-width: 100%;
  border: 0;
}
.footer__cols h4 {
  color: #fff;
  margin: 0 0 0.6rem;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}
.footer__cols a {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  padding: 0.2rem 0;
  font-size: 0.92rem;
}
.footer__cols a:hover {
  color: var(--orange-2);
  text-decoration: none;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1rem;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}
.footer__addr {
  color: rgba(255, 255, 255, 0.7);
}
@media (max-width: 1024px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer__cols {
    grid-template-columns: repeat(4, 1fr);
  }
  .footer__fanpage {
    grid-column: 1 / -1;
  }
}
@media (max-width: 760px) {
  .footer__cols {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .footer__inner {
    grid-template-columns: 1fr;
  }
}

/* ===================== SUCCESS STORIES ===================== */
.stories-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
  margin: 0 auto 2rem;
  max-width: 980px;
}
/* List view — one row per story, cover on left, content on right */
.stories-grid {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.story-row {
  display: grid;
  /* minmax(0, …) prevents the intrinsic image width from blowing out the column */
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  text-decoration: none !important;
  color: inherit !important;
  transition: border-color 0.18s, box-shadow 0.18s, transform 0.18s;
}
.story-row > * { min-width: 0; }
.story-row:hover {
  border-color: rgba(255, 122, 24, 0.5);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.story-row__cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  overflow: hidden;
}
.story-row__cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s;
}
.story-row:hover .story-row__cover img {
  transform: scale(1.05);
}
.story-row__cover--ph {
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.65);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
}
.story-row__cover-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.6rem;
  background: rgba(255, 122, 24, 0.95);
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  border-radius: 6px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  max-width: calc(100% - 16px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.story-row__body {
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.story-row__top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
  margin-bottom: 0.1rem;
}
.story-row__title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.35;
  font-family: "Space Grotesk", sans-serif;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.story-row:hover .story-row__title {
  color: var(--orange);
}
.story-row__byline {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}
.story-row__snippet {
  margin: 0.2rem 0 0;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.story-row__cta {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--orange);
}

/* Tablet / mobile: stack vertically */
@media (max-width: 640px) {
  .story-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .story-row__body {
    padding: 1rem 1.1rem 1.1rem;
  }
}

/* Shared chip / badge styles (used by row + detail page) */
.story-card__cos {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.story-card__co {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: rgba(255, 122, 24, 0.12);
  color: var(--orange);
}
.story-card__badges {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.story-card__badge {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.18rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
}
.story-card__badge--bt {
  background: var(--navy);
  color: #fff;
}
.story-card__badge--prem {
  background: linear-gradient(135deg, #ffce4f, #ff9000);
  color: #5a3700;
}
.story-card__badge--anon {
  background: rgba(11, 29, 58, 0.08);
  color: var(--navy);
}
/* Avatar still used in story detail header */
.avatar--story {
  width: 48px;
  height: 48px;
  font-size: 0.9rem;
  margin-bottom: 0;
  flex: 0 0 auto;
}
.stories-foot {
  text-align: center;
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Pagination */
.pager {
  max-width: 880px;
  margin: 1.75rem auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.4rem;
}
.pager__btn {
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  min-width: 36px;
  height: 36px;
  padding: 0 0.7rem;
  border-radius: 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--navy);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}
.pager__btn:hover:not(.is-disabled):not(:disabled) {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-1px);
}
.pager__btn.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.pager__btn.is-active:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}
.pager__btn.is-disabled,
.pager__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pager__gap {
  color: var(--muted);
  padding: 0 0.25rem;
  user-select: none;
}
.pager__info {
  flex-basis: 100%;
  text-align: center;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Story detail page */
.story-detail {
  max-width: 760px;
}
.story-detail__head {
  text-align: left;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.story-detail__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 0.85rem;
  align-items: center;
}
.story-detail__byline {
  margin: 0.6rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}
.story-detail__byline::before {
  content: "by ";
  opacity: 0.7;
}
.story-detail__head h1 {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  margin: 0.5rem 0 0;
  color: var(--navy);
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.story-detail__cover {
  display: block;
  width: 100%;
  border-radius: var(--radius-sm);
  margin: 1.25rem 0 1.75rem;
  box-shadow: var(--shadow-md);
}
.story-detail__body {
  color: var(--text);
  font-size: 1rem;
  line-height: 1.75;
}
.story-detail__body p.story__lead {
  font-size: 1.08rem;
  color: var(--navy);
  font-weight: 500;
  border-left: 3px solid var(--orange);
  padding: 0.5rem 0.9rem;
  background: rgba(255, 122, 24, 0.06);
  border-radius: 0 8px 8px 0;
  margin: 0 0 1.5rem;
}
.story-detail__body h2 {
  font-size: 1.25rem;
  margin: 2rem 0 0.65rem;
  color: var(--navy);
}
.story-detail__body p { margin: 0 0 0.85rem; }
.story-detail__body ul {
  padding-left: 1.3rem;
  margin: 0 0 1rem;
}
.story-detail__body ul li {
  margin-bottom: 0.45rem;
}
.story-detail__body ul.story__courses {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.55rem;
}
.story-detail__body ul.story__courses li {
  margin: 0;
}
.story-detail__body ul.story__courses li a {
  display: block;
  padding: 0.7rem 0.95rem;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--navy) !important;
  text-decoration: none !important;
  font-weight: 600;
  font-size: 0.92rem;
  transition: border-color 0.18s, background 0.18s, transform 0.12s;
}
.story-detail__body ul.story__courses li a::before {
  content: "📘  ";
}
.story-detail__body ul.story__courses li a:hover {
  border-color: var(--orange);
  background: #fff;
  transform: translateY(-1px);
  color: var(--orange) !important;
}
.story-detail__body a {
  color: var(--orange);
}
.story-detail__body strong {
  color: var(--navy);
}

/* ===================== INTERVIEW RESOURCES ===================== */
.resource-block {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}
@media (max-width: 640px) {
  .resource-block { padding: 1.25rem 1rem; }
}
.resource-block__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.resource-block__head > div {
  flex: 1;
  min-width: 240px;
}
.resource-block__kicker {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 0.3rem;
}
.resource-block__head h3 {
  margin: 0 0 0.2rem;
  font-size: 1.4rem;
  color: var(--navy);
}
.resource-block__desc {
  margin: 0 0 1.5rem;
  color: var(--text);
  font-size: 0.96rem;
  line-height: 1.6;
}
.btn--ghost-dark {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.btn--ghost-dark:hover {
  background: var(--navy-2);
  border-color: var(--navy-2);
  color: #fff;
}

/* Video grid (Programming Foundation) */
.video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
@media (max-width: 1024px) { .video-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px)  { .video-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .video-grid { grid-template-columns: 1fr; } }

.video-card {
  display: block;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  text-decoration: none !important;
  color: inherit !important;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.video-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 0, 0, 0.4);
}
.video-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
}
.video-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s;
}
.video-card:hover .video-card__thumb img {
  transform: scale(1.06);
}
.video-card__dur {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-variant-numeric: tabular-nums;
}
.video-card__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0);
  color: rgba(255, 0, 0, 0.92);
  font-size: 2.4rem;
  opacity: 0;
  transition: opacity 0.2s;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}
.video-card:hover .video-card__play {
  opacity: 1;
}
.video-card__meta {
  padding: 0.7rem 0.85rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.video-card__idx {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}
.video-card__meta h4 {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.35;
  color: var(--navy);
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-card:hover .video-card__meta h4 {
  color: var(--orange);
}

/* CV showcase — feature card with embedded Drive preview */
.cv-sample {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.5rem;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 860px) {
  .cv-sample { grid-template-columns: 1fr; }
}
.cv-sample__preview {
  background: #1a1f2e;
  min-height: 420px;
  position: relative;
}
.cv-sample__preview iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.cv-sample__copy {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.cv-sample__copy h4 {
  margin: 0.25rem 0 0.2rem;
  font-size: 1.15rem;
  color: var(--navy);
  line-height: 1.3;
}
.cv-sample__points {
  margin: 0.5rem 0 1.25rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.cv-sample__points li {
  position: relative;
  padding-left: 1.3rem;
  font-size: 0.93rem;
  color: var(--text);
}
.cv-sample__points li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--orange);
  font-weight: 700;
}
.cv-sample .btn--primary {
  align-self: flex-start;
  margin-top: auto;
}

/* CV grid (3 cards) */
.cv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 900px) { .cv-grid { grid-template-columns: 1fr; } }

.cv-card {
  display: flex;
  flex-direction: column;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  text-decoration: none !important;
  color: inherit !important;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.cv-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.cv-card--template:hover { border-color: #138a07; }
.cv-card--playlist:hover { border-color: #ff0000; }
.cv-card--video:hover    { border-color: #ff0000; }

.cv-card__icon {
  font-family: "Space Grotesk", sans-serif;
  height: 100px;
  display: grid;
  place-items: center;
  font-size: 2.6rem;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: var(--orange);
}
.cv-card--template .cv-card__icon {
  background: linear-gradient(135deg, #1c8a35, #138a07);
  color: #fff;
}
.cv-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
}
.cv-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s;
}
.cv-card:hover .cv-card__thumb img {
  transform: scale(1.06);
}
.cv-card__play {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 36px;
  height: 36px;
  background: rgba(255, 0, 0, 0.92);
  color: #fff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}
.cv-card__body {
  padding: 1rem 1.1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
}
.cv-card__kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--orange);
}
.cv-card__body h4 {
  margin: 0;
  font-size: 1rem;
  color: var(--navy);
  line-height: 1.35;
}
.cv-card__body p {
  margin: 0;
  font-size: 0.85rem;
}
.cv-card__cta {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--orange);
}

/* ===================== ROADMAP (now embedded on home page) ===================== */
/* Light-on-light eyebrow variant for use on home/light backgrounds */
.hero__eyebrow--light {
  background: rgba(255, 122, 24, 0.12);
  border: 1px solid rgba(255, 122, 24, 0.25);
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
:root[data-theme="dark"] .hero__eyebrow--light {
  background: rgba(255, 122, 24, 0.16);
  border-color: rgba(255, 122, 24, 0.4);
  color: var(--orange-2);
}
#home-roadmap > .section__head h2 {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  margin-top: 0.75rem;
}

/* Timeline */
.roadmap {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}
.stage {
  --stage-accent: var(--orange);
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  align-items: stretch;
}
@media (max-width: 640px) {
  .stage { grid-template-columns: 44px 1fr; gap: 1rem; }
}
.stage__rail {
  position: relative;
  display: flex;
  justify-content: center;
}
.stage__rail::before {
  content: "";
  position: absolute;
  top: 60px;
  bottom: -2.5rem;
  width: 3px;
  background: linear-gradient(180deg, var(--stage-accent) 0%, transparent 100%);
  opacity: 0.4;
}
.stage:last-child .stage__rail::before {
  display: none;
}
.stage__n {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--stage-accent);
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.15);
  z-index: 1;
}
@media (max-width: 640px) {
  .stage__n { width: 40px; height: 40px; font-size: 0.9rem; border-radius: 10px; }
}

.stage__body {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem 1.75rem;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--stage-accent);
}
@media (max-width: 640px) {
  .stage__body { padding: 1.25rem 1rem 1.4rem; }
}
.stage__head {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  margin-bottom: 0.8rem;
}
.stage__icon {
  font-size: 1.8rem;
  line-height: 1;
}
.stage__title-wrap {
  flex: 1;
}
.stage__title {
  margin: 0;
  font-size: 1.3rem;
  color: var(--navy);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.55rem;
  line-height: 1.25;
}
.stage__phase {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--stage-accent) 12%, transparent);
  color: var(--stage-accent);
}
.stage__subtitle {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.stage__goal {
  margin: 0 0 1.25rem;
  font-size: 0.94rem;
  color: var(--text);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--stage-accent) 6%, transparent);
  border-left: 3px solid var(--stage-accent);
}
.stage__goal span {
  color: var(--muted);
}

.stage__modules {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.module {
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
}
.stage__modules .module:first-child {
  border-top: 0;
  padding-top: 0;
}
.module__head h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
  color: var(--navy);
}
.module__blurb {
  margin: 0 0 0.65rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.module__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.topic-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.32rem 0.7rem 0.32rem 0.55rem;
  border-radius: 999px;
  background: var(--cream);
  border: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--navy);
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s;
}
.topic-pill:hover {
  border-color: var(--stage-accent);
  background: #fff;
}
.topic-pill__check {
  color: var(--stage-accent);
  font-weight: 700;
}

/* Extras + Benefits */
.roadmap-extras {
  padding-top: 0;
}
.roadmap-extras__inner {
  background: linear-gradient(135deg, #fff 0%, #f4f1ea 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  border-left: 4px solid var(--orange);
}
.roadmap-extras__inner h3 {
  margin: 0 0 0.7rem;
  font-size: 1.05rem;
  color: var(--navy);
}
.roadmap-extras__inner ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text);
}
.roadmap-extras__inner li {
  margin-bottom: 0.3rem;
}

.roadmap-benefits {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.roadmap-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.85rem 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text);
}
.roadmap-benefits__check {
  flex: 0 0 auto;
  font-size: 1.1rem;
  line-height: 1.4;
}

.roadmap-cta {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* ===================== FAQ (accordion) ===================== */
.faq-controls {
  display: flex;
  gap: 0.5rem;
  margin: 0 auto 1.5rem;
  max-width: 720px;
  flex-wrap: wrap;
}
.faq-search {
  flex: 1;
  min-width: 220px;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--text);
  transition: border-color 0.18s, box-shadow 0.18s;
}
.faq-search:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 24, 0.15);
}
.btn-mini {
  padding: 0.6rem 0.95rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--navy);
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s, color 0.18s;
}
.btn-mini:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.18s, box-shadow 0.18s;
  overflow: hidden;
}
.faq-item[open] {
  border-color: rgba(255, 122, 24, 0.45);
  box-shadow: var(--shadow-md);
}
.faq-item__q {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-item__q::-webkit-details-marker {
  display: none;
}
.faq-item__n {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(255, 122, 24, 0.12);
  color: var(--orange);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
}
.faq-item__qtext {
  flex: 1;
  color: var(--navy);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  line-height: 1.35;
  font-size: 1.02rem;
}
.faq-item__chevron {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 1.4rem;
  font-weight: 700;
  transform: rotate(90deg);
  transition: transform 0.22s ease, color 0.18s;
}
.faq-item[open] .faq-item__chevron {
  transform: rotate(270deg);
  color: var(--orange);
}
.faq-item__a {
  padding: 0 1.25rem 1.1rem 4.1rem;
  color: var(--text);
  font-size: 0.97rem;
  line-height: 1.65;
  animation: faqOpen 0.22s ease-out;
}
@keyframes faqOpen {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.faq-item__a p {
  margin: 0 0 0.6rem;
}
.faq-item__a ul,
.faq-item__a ol {
  padding-left: 1.2rem;
  margin: 0 0 0.6rem;
}
.faq-item__a a {
  color: var(--orange);
  word-break: break-word;
}

/* Inline CTA buttons for FB / Messenger / Zalo links auto-promoted by
   buttonifyContactLinks() in app.js. Used inside FAQ answers and course
   detail bodies. */
a.faq-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #fff !important;
  margin: 0.4rem 0.4rem 0.6rem 0;
  word-break: normal;
  text-decoration: none;
}
a.faq-cta:hover { transform: translateY(-1px); }
.faq-cta--fb   { background: linear-gradient(135deg, #1877f2 0%, #0d62d6 100%) !important; }
.faq-cta--msg  { background: linear-gradient(135deg, #00b2ff 0%, #006aff 100%) !important; }
.faq-cta--zalo { background: linear-gradient(135deg, #1a8cff 0%, #0068ff 100%) !important; }
.faq-item__a strong {
  color: var(--navy);
}
.faq-empty {
  text-align: center;
  color: var(--muted);
  margin-top: 1.5rem;
}
@media (max-width: 640px) {
  .faq-item__a {
    padding-left: 1.25rem;
  }
}

/* ===================== CODING BOOK ===================== */
.book-hero {
  background: radial-gradient(900px 500px at 90% 0%, rgba(255, 122, 24, 0.18), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(24, 98, 255, 0.22), transparent 60%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 4rem 0 5rem;
  overflow: hidden;
}
.book-hero__inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 860px) {
  .book-hero__inner {
    grid-template-columns: 1fr;
  }
}
.book-hero__eyebrow {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--orange-2);
  margin-bottom: 1.25rem;
}
.book-hero__title {
  color: #fff;
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 0.5rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.book-hero__sub {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
  font-style: italic;
  margin: 0 0 1.5rem;
}
.book-hero__authors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.75rem;
}
.book-author {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.85rem 0.45rem 0.45rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: #fff !important;
  text-decoration: none !important;
  transition: background 0.2s, transform 0.15s;
}
.book-author:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}
.book-author__avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  color: #fff;
}
.book-author__meta {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.book-author__name {
  font-size: 0.88rem;
  font-weight: 600;
}
.book-author__role {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.65);
}
.book-hero__cta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* 3D book cover illusion */
.book-hero__art {
  display: grid;
  place-items: center;
  perspective: 1400px;
}
.book-cover {
  width: 240px;
  height: 320px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(-18deg) rotateX(4deg);
  transition: transform 0.4s ease;
  animation: bookFloat 6s ease-in-out infinite;
}
.book-cover:hover {
  transform: rotateY(-6deg) rotateX(2deg);
}
@keyframes bookFloat {
  0%, 100% { transform: rotateY(-18deg) rotateX(4deg) translateY(0); }
  50%      { transform: rotateY(-18deg) rotateX(4deg) translateY(-8px); }
}
.book-cover__face {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #ff7a18 0%, #ff3b2d 60%, #6b1e10 100%);
  border-radius: 8px 14px 14px 8px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45), inset 0 0 30px rgba(0, 0, 0, 0.15);
  padding: 1.5rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  color: #fff;
}
.book-cover__spine {
  position: absolute;
  left: -14px;
  top: 6px;
  bottom: 6px;
  width: 14px;
  background: linear-gradient(90deg, #4a1208, #b8351c);
  border-radius: 4px 0 0 4px;
  box-shadow: inset 2px 0 4px rgba(0, 0, 0, 0.3);
}
.book-cover__brand {
  display: inline-block;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.55rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
  align-self: flex-start;
}
.book-cover__title {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  line-height: 1.15;
  margin-top: auto;
}
.book-cover__sub {
  font-size: 0.85rem;
  opacity: 0.85;
}
.book-cover__chip {
  margin-top: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.55rem;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  text-align: center;
  font-weight: 500;
}

/* Chapter grid (grouped) */
.book-chapters {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.book-group__name {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 0.85rem;
}
.book-group__items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.6rem;
}
.book-chapter {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 0.85rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text) !important;
  text-decoration: none !important;
  font-size: 0.92rem;
  transition: border-color 0.18s, transform 0.15s, box-shadow 0.18s;
}
.book-chapter:hover {
  border-color: rgba(255, 122, 24, 0.5);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.book-chapter__n {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: #fff;
}
.book-chapter__title {
  flex: 1;
  line-height: 1.3;
  color: var(--navy);
  font-weight: 500;
}
.book-chapter:hover .book-chapter__title {
  color: var(--orange);
}

/* Final CTA */
.book-final {
  padding-bottom: 4rem;
}
.book-final__inner {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  color: #fff;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.book-final__inner h2 {
  color: #fff;
  margin-bottom: 0.75rem;
}
.book-final__inner p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 56ch;
  margin: 0 auto 1.5rem;
}
.book-final__inner strong {
  color: var(--orange-2);
}
.book-final__cta {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* ===================== FLOATING CTAs — Đặt lịch tư vấn ===================== */
.cta-stack {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 60;
  display: flex;
  flex-direction: column-reverse;
  gap: 0.6rem;
  align-items: flex-end;
}
.cta-fab {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 1.2rem 0.7rem 0.85rem;
  color: #fff !important;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 999px;
  text-decoration: none !important;
  transition: transform 0.18s ease, box-shadow 0.2s ease, filter 0.2s ease;
  white-space: nowrap;
}
.cta-fab--messenger {
  background: linear-gradient(135deg, var(--orange) 0%, #ff5b48 100%);
  box-shadow:
    0 12px 28px rgba(255, 122, 24, 0.45),
    inset 0 -3px 8px rgba(0, 0, 0, 0.18);
  animation: ctaPulseOrange 2.6s ease-in-out infinite;
}
.cta-fab--zalo {
  background: linear-gradient(135deg, #1a8cff 0%, #0068ff 100%);
  box-shadow:
    0 10px 24px rgba(24, 98, 255, 0.4),
    inset 0 -3px 8px rgba(0, 0, 0, 0.18);
}
.cta-fab:hover {
  transform: translateY(-2px) scale(1.02);
  filter: brightness(1.04);
  animation-play-state: paused;
}
.cta-fab--messenger:hover {
  box-shadow:
    0 18px 34px rgba(255, 122, 24, 0.55),
    inset 0 -3px 8px rgba(0, 0, 0, 0.18);
}
.cta-fab--zalo:hover {
  box-shadow:
    0 16px 30px rgba(24, 98, 255, 0.5),
    inset 0 -3px 8px rgba(0, 0, 0, 0.18);
}
.cta-fab:active {
  transform: translateY(0) scale(0.98);
}
.cta-fab__icon {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  flex: 0 0 auto;
}
.cta-fab__icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

@keyframes ctaPulseOrange {
  0%, 100% {
    box-shadow:
      0 12px 28px rgba(255, 122, 24, 0.45),
      0 0 0 0 rgba(255, 122, 24, 0.55),
      inset 0 -3px 8px rgba(0, 0, 0, 0.18);
  }
  60% {
    box-shadow:
      0 12px 28px rgba(255, 122, 24, 0.45),
      0 0 0 14px rgba(255, 122, 24, 0),
      inset 0 -3px 8px rgba(0, 0, 0, 0.18);
  }
}
@media (prefers-reduced-motion: reduce) {
  .cta-fab { animation: none; }
}

/* Mobile: shrink to icon-only round buttons */
@media (max-width: 640px) {
  .cta-stack {
    right: 0.8rem;
    bottom: 0.8rem;
    gap: 0.5rem;
  }
  .cta-fab {
    padding: 0.65rem;
    width: 48px;
    height: 48px;
    justify-content: center;
  }
  .cta-fab__label {
    display: none;
  }
  .cta-fab__icon {
    width: 22px;
    height: 22px;
    background: transparent;
  }
}

/* ===================== FLOATING SOCIAL RAIL ===================== */
.social-rail {
  position: fixed;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  z-index: 45;
}
.social-rail__btn {
  position: relative;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff !important;
  text-decoration: none !important;
  box-shadow: 0 8px 22px rgba(10, 20, 36, 0.22), inset 0 -3px 8px rgba(0, 0, 0, 0.18);
  transition: transform 0.18s ease, box-shadow 0.2s ease;
  cursor: pointer;
}
.social-rail__btn:hover {
  transform: translateY(-2px) scale(1.07);
  box-shadow: 0 14px 28px rgba(10, 20, 36, 0.3), inset 0 -3px 8px rgba(0, 0, 0, 0.22);
}
.social-rail__btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  display: block;
}

/* Tooltip on the left */
.social-rail__tip {
  position: absolute;
  right: calc(100% + 0.55rem);
  top: 50%;
  transform: translate(6px, -50%);
  background: var(--navy);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.32rem 0.65rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  box-shadow: 0 6px 14px rgba(10, 20, 36, 0.25);
}
.social-rail__tip::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--navy);
}
/* In dark mode, --navy is swapped to a light grey for headings, which would
   make the social-rail tooltip white-on-light-grey (invisible). Force a real
   dark bg + matching arrow so the tooltip stays readable in both themes. */
:root[data-theme="dark"] .social-rail__tip {
  background: #1c2a45;
}
:root[data-theme="dark"] .social-rail__tip::after {
  border-left-color: #1c2a45;
}
.social-rail__btn:hover .social-rail__tip,
.social-rail__btn:focus-visible .social-rail__tip {
  opacity: 1;
  transform: translate(0, -50%);
}

/* Brand colors */
.social-rail__btn--messenger {
  background: linear-gradient(135deg, #00b2ff 0%, #006aff 100%);
}
.social-rail__btn--zalo {
  background: linear-gradient(135deg, #1a8cff 0%, #0068ff 100%);
}
.social-rail__btn--spotify {
  background: #1db954;
}
.social-rail__btn--youtube {
  background: #ff0000;
}
.social-rail__btn--substack {
  background: #ff6719;
}
.social-rail__btn--viblo {
  background: linear-gradient(135deg, #20a4f3 0%, #0f6db8 100%);
}

@media (max-width: 768px) {
  .social-rail {
    right: 0.5rem;
    gap: 0.4rem;
  }
  .social-rail__btn {
    width: 38px;
    height: 38px;
    box-shadow: 0 6px 14px rgba(10, 20, 36, 0.2);
  }
  .social-rail__btn svg {
    width: 18px;
    height: 18px;
  }
  /* Tooltip is awkward on touch — hide */
  .social-rail__tip {
    display: none;
  }
}

/* ===================== TERMS OF SERVICE ===================== */
.terms-article {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.5rem 2.5rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  line-height: 1.65;
  color: var(--text);
}
.terms-article h3 {
  font-size: 1.18rem;
  margin: 1.75rem 0 0.6rem;
  color: var(--navy);
  border-left: 3px solid var(--accent);
  padding-left: 0.6rem;
}
.terms-article h3:first-child {
  margin-top: 0;
}
.terms-article h4 {
  font-size: 1rem;
  margin: 1.1rem 0 0.4rem;
  color: var(--text);
}
.terms-article p { margin: 0 0 0.7rem; }
.terms-article ul,
.terms-article ol {
  margin: 0.2rem 0 0.9rem;
  padding-left: 1.4rem;
}
.terms-article li { margin: 0.25rem 0; }
.terms-article strong { color: var(--navy); }
.terms-callout {
  margin-top: 1.5rem !important;
  padding: 0.9rem 1.1rem;
  background: rgba(255, 122, 24, 0.08);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  font-size: 0.95rem;
}
:root[data-theme="dark"] .terms-article h3,
:root[data-theme="dark"] .terms-article strong {
  color: #fff;
}
:root[data-theme="dark"] .terms-callout {
  background: rgba(255, 122, 24, 0.14);
}
.faq-foot {
  text-align: center;
  margin-top: 2rem;
}

/* ===================== ROUTES ===================== */
.route {
  animation: fadeIn 0.32s ease both;
}
.route[hidden] {
  display: none !important;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}