/* ============================================================
   brújula — design system
   Wu Wei Project · 2026
   ============================================================ */

:root {
  /* palette: warm editorial */
  --cream: #f5f1e6;
  --cream-2: #ede7d4;
  --cream-3: #e3dcc4;
  --paper: #fbf8ef;
  --ink: #0e1a2e;
  --ink-2: #1c2942;
  --ink-3: #3a4761;
  --ink-soft: #5a6478;
  --gold: #c89b3c;
  --gold-2: #a17a23;
  --coral: #e07856;
  --coral-2: #c25a3a;
  --moss: #6b8e4e;
  --line: rgba(14, 26, 46, 0.12);
  --line-strong: rgba(14, 26, 46, 0.24);

  /* type */
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* layout */
  --maxw: 1180px;
  --gut: clamp(20px, 4vw, 56px);
  --radius: 14px;
  --radius-sm: 8px;

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ============================================================
   DARK MODE
   ============================================================ */
[data-theme="dark"] {
  --cream: #0e1420;
  --cream-2: #141c2c;
  --cream-3: #1a2438;
  --paper: #111924;
  --ink: #e8e2d0;
  --ink-2: #c9c1ab;
  --ink-3: #9a9485;
  --ink-soft: #7a7567;
  --gold: #d4a840;
  --gold-2: #e0b94e;
  --coral: #e8845e;
  --coral-2: #f09070;
  --moss: #8aae68;
  --line: rgba(232, 226, 208, 0.1);
  --line-strong: rgba(232, 226, 208, 0.18);
}
[data-theme="dark"] body::before {
  background-image:
    radial-gradient(circle at 20% 30%, rgba(212,168,64,0.04) 0, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(232,132,94,0.03) 0, transparent 50%);
}
[data-theme="dark"] .topbar {
  background: rgba(14, 20, 32, 0.92);
}
[data-theme="dark"] .mobile-drawer {
  background: #0e1420;
}
[data-theme="dark"] .compass circle:nth-child(2) {
  fill: #1a2438;
  stroke: rgba(212,168,64,0.3);
}
[data-theme="dark"] .compass circle:nth-child(3) {
  fill: url(#compassFaceDark);
}
[data-theme="dark"] .compass filter#compassShadow feComponentTransfer feFuncA {
  slope: 0.6;
}
[data-theme="dark"] #ticks {
  stroke: #9a9485;
}
[data-theme="dark"] .compass text {
  fill: #c9c1ab;
}
[data-theme="dark"] .bottom-cta {
  background: #1a2438;
}
[data-theme="dark"] .footer {
  background: #080c14;
}
[data-theme="dark"] .footer-tag {
  color: rgba(232,226,208,0.5);
}
[data-theme="dark"] .footer-meta {
  color: rgba(232,226,208,0.35);
}
[data-theme="dark"] .footer-brand {
  color: var(--gold);
}
[data-theme="dark"] .footer-donate {
  background: rgba(212,168,64,0.1);
  border-color: rgba(212,168,64,0.25);
}
[data-theme="dark"] .results {
  background: #1a2438;
  border: 1px solid rgba(232,226,208,0.08);
}
[data-theme="dark"] .results::before {
  background: radial-gradient(circle at 80% 0%, rgba(212,168,64,0.12) 0, transparent 50%);
}
[data-theme="dark"] .result-stat .label {
  opacity: 0.8;
  color: #9a9485;
}
[data-theme="dark"] .result-stat .value.cream {
  color: #e8e2d0;
}
[data-theme="dark"] .result-stat .value.coral {
  color: #f09070;
}
[data-theme="dark"] .callout {
  background: rgba(212,168,64,0.08);
  border-color: var(--gold);
}
[data-theme="dark"] .callout.warn {
  background: rgba(240,144,112,0.08);
}
[data-theme="dark"] .lesson-tool {
  background: #141c2c;
  border-color: rgba(232,226,208,0.1);
}
[data-theme="dark"] .tool-detail {
  background: #111924;
}
[data-theme="dark"] .chart {
  background: #141c2c;
  border-color: rgba(232,226,208,0.08);
}
[data-theme="dark"] .manifesto {
  background: #111924;
  border-color: rgba(232,226,208,0.06);
}
[data-theme="dark"] .bottom-cta .btn-primary {
  color: #0e1420;
}
[data-theme="dark"] .glossary-search input {
  background: #141c2c;
  border-color: rgba(232,226,208,0.15);
  color: var(--ink);
}
[data-theme="dark"] .glossary-search input::placeholder {
  color: #7a7567;
}
[data-theme="dark"] .hero-title-top {
  color: #7a7567;
}
[data-theme="dark"] .hero-title-big {
  background: linear-gradient(135deg, #e8e2d0 30%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
[data-theme="dark"] #needle polygon:first-child {
  fill: #f09070;
}
[data-theme="dark"] #needle polygon:last-of-type {
  fill: #e8e2d0;
}
[data-theme="dark"] #needle circle:last-child {
  fill: var(--gold);
}
[data-theme="dark"] .field input[type="range"] {
  background: #1a2438;
}
[data-theme="dark"] .field input[type="range"]::-webkit-slider-thumb {
  background: var(--gold);
  border-color: #0e1420;
}
[data-theme="dark"] .field input[type="range"]::-moz-range-thumb {
  background: var(--gold);
  border-color: #0e1420;
}
[data-theme="dark"] .hamburger span {
  background: var(--ink);
}
[data-theme="dark"] .brand-mark circle:last-child {
  fill: #0e1420;
}

* { box-sizing: border-box; }
*::selection { background: var(--gold); color: var(--cream); }

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background 0.5s var(--ease-out), color 0.5s var(--ease-out);
}
/* Smooth theme transitions on common surfaces */
.topbar, .mobile-drawer, .manifesto, .feature, .lesson-card, .tool-card,
.resource-card, .glossary-item, .bottom-cta, .footer, .lesson-video,
.auth-card, .btn, .callout {
  transition: background 0.45s var(--ease-out), border-color 0.45s var(--ease-out), color 0.45s var(--ease-out), box-shadow 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}

/* texture: subtle paper grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(14,26,46,0.025) 0, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(200,155,60,0.04) 0, transparent 50%);
  mix-blend-mode: multiply;
}

img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; }
a { color: inherit; }

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 12px; top: 12px;
  background: var(--ink); color: var(--cream);
  padding: 10px 16px; border-radius: 6px;
  z-index: 1000;
}

/* Screen reader only (visually hidden, AT accessible) */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Consistent focus-visible for keyboard navigation (WCAG 2.4.7) */
.btn:focus-visible,
.navlink:focus-visible,
.drawer-link:focus-visible,
.auth-pill:focus-visible,
.theme-toggle:focus-visible,
.hamburger:focus-visible,
.langctl-btn:focus-visible,
.langctl-opt:focus-visible,
.lesson-card:focus-visible,
.tool-card:focus-visible,
.avatar-option:focus-visible,
.back-btn:focus-visible,
.glossary-search input:focus-visible,
.lesson-video-thumb:focus-visible,
.lesson-video-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--gut);
  background: rgba(245, 241, 230, 0.92);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  padding: 0;
  color: var(--ink);
}
.brand-mark {
  width: 28px; height: 28px;
  color: var(--ink);
  transition: transform 0.6s var(--ease-out);
}
.brand:hover .brand-mark { transform: rotate(45deg); }
.brand-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.topnav {
  display: flex;
  gap: 4px;
}
.navlink {
  background: none;
  border: none;
  color: var(--ink-3);
  padding: 12px 16px;
  min-height: 44px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s var(--ease-out);
}
.navlink:hover {
  color: var(--ink);
  background: var(--cream-2);
}
.navlink.active {
  color: var(--ink);
  background: var(--cream-3);
}

.topright {
  display: flex;
  align-items: center;
  gap: 14px;
}
.progress-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.progress-pill svg {
  width: 22px; height: 22px;
  color: var(--gold);
}
#progressRing {
  transition: stroke-dashoffset 0.6s var(--ease-out);
}

@media (max-width: 720px) {
  .topnav { display: none; }
  .topbar { padding: 14px 18px; }
}

/* ============================================================
   VIEWS
   ============================================================ */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gut) 80px;
  position: relative;
  z-index: 2;
}

.view {
  display: none;
  animation: viewIn 0.55s var(--ease-out);
}
.view.active { display: block; }

@keyframes viewIn {
  from { opacity: 0; transform: translateY(16px); filter: blur(2px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.view-header {
  padding: 60px 0 40px;
  max-width: 760px;
}
.view-header h1 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 6px 0 18px;
}
.view-sub {
  color: var(--ink-soft);
  font-size: 17px;
  max-width: 620px;
}

.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin: 0 0 4px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 60px 0 24px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0 40px;
  min-height: 70vh;
}
@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 0 20px;
  }
}

.hero-text {
  order: 1;
}
@media (max-width: 880px) { .hero-text { order: 2; } }

.hero-title {
  font-family: var(--font-serif);
  font-weight: 500;
  margin: 14px 0 26px;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 0;
}
.hero-title-top {
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--ink-3);
}
.hero-title-big {
  font-size: clamp(64px, 12vw, 140px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.9;
  color: var(--ink);
  background: linear-gradient(135deg, var(--ink) 40%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(17px, 1.6vw, 19px);
  color: var(--ink-3);
  max-width: 520px;
  line-height: 1.55;
  margin: 0 0 32px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.hero-meta {
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.hero-compass {
  order: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 880px) { .hero-compass { order: 1; } }

.compass {
  width: min(420px, 80vw);
  height: auto;
  animation: compassFloat 7s ease-in-out infinite;
}
#needle {
  transform-origin: 200px 200px;
  animation: needleSeek 9s var(--ease-in-out) infinite;
}

@keyframes compassFloat {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%     { transform: translateY(-8px) rotate(-1.5deg); }
}
@keyframes needleSeek {
  0%   { transform: rotate(0deg); }
  15%  { transform: rotate(-72deg); }
  22%  { transform: rotate(-58deg); }
  32%  { transform: rotate(-64deg); }
  50%  { transform: rotate(128deg); }
  62%  { transform: rotate(112deg); }
  72%  { transform: rotate(118deg); }
  100% { transform: rotate(360deg); }
}

/* Hero glow behind compass */
.hero-compass::after {
  content: '';
  position: absolute;
  inset: 10% 5%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,155,60,0.15) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: -1;
  animation: heroGlow 8s ease-in-out infinite;
}
.hero-compass { position: relative; }
@keyframes heroGlow {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}
[data-theme="dark"] .hero-compass::after {
  background: radial-gradient(circle, rgba(212,168,64,0.22) 0%, transparent 70%);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.005em;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.28s var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink);
  color: var(--cream);
  box-shadow: 0 4px 14px rgba(14,26,46,0.18);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--gold) 0%, var(--coral) 100%);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  z-index: 0;
}
.btn-primary > * { position: relative; z-index: 1; }
.btn-primary:hover {
  background: var(--ink-2);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(200,155,60,0.28), 0 4px 12px rgba(14,26,46,0.2);
}
.btn-primary:hover::before { opacity: 0.12; }
.btn-primary:active { transform: translateY(0); transition: transform 0.1s; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  background: var(--cream-2);
  border-color: var(--ink);
}
.btn-large {
  padding: 18px 36px;
  font-size: 17px;
}

/* ============================================================
   MANIFESTO
   ============================================================ */
.manifesto {
  position: relative;
  margin: 80px 0;
  padding: 60px clamp(30px, 6vw, 70px);
  background: var(--paper);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 6px 30px rgba(14,26,46,0.05);
}
.quote-mark {
  position: absolute;
  top: -10px;
  left: 30px;
  font-family: var(--font-serif);
  font-size: 140px;
  line-height: 1;
  color: var(--gold);
  opacity: 0.4;
  pointer-events: none;
}
.manifesto-line {
  font-family: var(--font-sans);
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.65;
  color: var(--ink-2);
  margin: 0 0 22px;
  font-weight: 400;
}
.manifesto-line em {
  font-style: italic;
  color: var(--ink-2);
}
.manifesto-line em.accent {
  color: var(--coral-2);
  font-weight: 500;
}
.manifesto-line strong {
  color: var(--ink);
  font-weight: 600;
}
.manifesto-divider {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--coral));
  border-radius: 2px;
  margin: 28px 0;
  opacity: 0.6;
}
.manifesto-closer {
  font-size: clamp(15px, 1.5vw, 17px);
  opacity: 0.85;
  line-height: 1.7;
}
.manifesto-sign {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-transform: uppercase;
  margin-top: 30px;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 80px 0;
}
@media (max-width: 760px) {
  .features { grid-template-columns: 1fr; }
}
.feature {
  padding: 32px 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all 0.4s var(--ease-out);
}
.feature:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: 0 12px 32px rgba(14,26,46,0.08);
}
.feature-num {
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  line-height: 1;
}
.feature h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}
.feature p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 15px;
}

/* ============================================================
   WHO FOR
   ============================================================ */
.who-for {
  margin: 80px 0;
}
.who-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.who-list li {
  padding: 22px 0 22px 44px;
  border-bottom: 1px solid var(--line);
  position: relative;
  font-size: 18px;
  color: var(--ink-2);
  transition: padding 0.3s var(--ease-out);
}
.who-list li::before {
  content: '→';
  position: absolute;
  left: 8px;
  color: var(--gold);
  font-size: 22px;
  transition: transform 0.3s var(--ease-out);
}
.who-list li:hover {
  padding-left: 56px;
}
.who-list li:hover::before {
  transform: translateX(8px);
}

/* ============================================================
   BOTTOM CTA
   ============================================================ */
.bottom-cta {
  text-align: center;
  margin: 100px 0 40px;
  padding: 60px 24px;
  background: var(--ink);
  color: var(--cream);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.bottom-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(200,155,60,0.18) 0, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(224,120,86,0.12) 0, transparent 50%);
  pointer-events: none;
}
.bottom-cta > * { position: relative; }
.bottom-cta .btn-primary {
  background: var(--gold);
  color: var(--ink);
  box-shadow: 0 6px 20px rgba(200,155,60,0.4);
}
.bottom-cta .btn-primary:hover {
  background: #d8a845;
  box-shadow: 0 10px 28px rgba(200,155,60,0.5);
}
.bottom-cta-meta {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(245,241,230,0.6);
  letter-spacing: 0.06em;
}

/* ============================================================
   CURRICULUM (weeks + lessons grid)
   ============================================================ */
.weeks {
  display: flex;
  flex-direction: column;
  gap: 60px;
  margin: 30px 0 60px;
}
.week {
  position: relative;
}
.week-header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.week-num {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 68px);
  font-weight: 500;
  color: var(--gold);
  letter-spacing: -0.04em;
  line-height: 0.9;
  background: linear-gradient(135deg, var(--gold) 30%, var(--coral) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform 0.4s var(--ease-out);
  display: inline-block;
}
.week:hover .week-num {
  transform: translateX(4px) scale(1.03);
}
.week-info h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  margin: 0 0 4px;
  letter-spacing: -0.02em;
}
.week-info p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}

.lessons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.lesson-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px 24px;
  cursor: pointer;
  transition: all 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
  font: inherit;
  color: inherit;
}
.lesson-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  height: 100%;
  width: 3px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease-out);
}
.lesson-card:hover {
  transform: translateY(-3px);
  border-color: var(--ink-3);
  box-shadow: 0 12px 28px rgba(14,26,46,0.08);
}
.lesson-card:hover::before { transform: scaleY(1); }
.lesson-card.completed {
  background: linear-gradient(135deg, var(--cream-2) 0%, var(--cream) 100%);
  border-color: var(--gold);
  box-shadow: inset 0 0 0 1px rgba(200,155,60,0.15);
}
.lesson-card.completed::before { transform: scaleY(1); }
[data-theme="dark"] .lesson-card.completed {
  background: linear-gradient(135deg, rgba(212,168,64,0.12) 0%, #141c2c 100%);
  border-color: var(--gold);
}

/* Language change loading state */
body.lang-loading {
  cursor: wait;
}
body.lang-loading main {
  opacity: 0.6;
  pointer-events: none;
  transition: opacity 0.3s;
}
.lang-spinner {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border: 3px solid var(--line);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: langSpin 0.8s linear infinite;
  z-index: 1000;
  pointer-events: none;
  display: none;
}
body.lang-loading .lang-spinner {
  display: block;
}
@keyframes langSpin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.lesson-card-num {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--gold-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}
.lesson-card-title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 14px;
  flex: 1;
}
.lesson-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.lesson-card-check {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  transition: all 0.3s var(--ease-out);
}
.lesson-card.completed .lesson-card-check {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* ============================================================
   LESSON DETAIL
   ============================================================ */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  padding: 14px 0;
  margin: 30px 0 0;
  font-size: 14px;
  color: var(--ink-3);
  font-weight: 500;
  transition: color 0.25s;
}
.back-btn:hover { color: var(--gold-2); }
.back-btn svg { stroke: currentColor; }

.lesson {
  max-width: 720px;
  margin: 30px auto 40px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-2);
}
.lesson .lesson-eyebrow {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 8px;
}
.lesson h1 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(34px, 4.5vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 4px 0 8px;
  color: var(--ink);
}
.lesson .lesson-meta {
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* TTS (text-to-speech) button */
.tts-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--gold);
  background: transparent;
  border: 1px solid var(--gold);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.1s;
}
.tts-btn:hover {
  background: var(--gold);
  color: var(--cream);
}
.tts-btn:active { transform: scale(0.97); }
.tts-btn svg { flex-shrink: 0; }
.lesson h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  margin: 44px 0 14px;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.lesson p {
  margin: 0 0 22px;
}
.lesson p strong {
  color: var(--ink);
  font-weight: 600;
}
.lesson em { color: var(--coral-2); font-style: italic; }
.lesson ul, .lesson ol {
  padding-left: 24px;
  margin: 0 0 22px;
}
.lesson li { margin-bottom: 10px; }

.callout {
  background: var(--cream-2);
  border-left: 3px solid var(--gold);
  padding: 22px 26px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 30px 0;
  font-size: 16px;
  color: var(--ink-2);
}
.callout-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin: 0 0 8px;
}

.callout.warn { border-color: var(--coral); background: rgba(224,120,86,0.08); }
.callout.warn .callout-title { color: var(--coral-2); }

.lesson blockquote {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink);
  border-left: 3px solid var(--ink);
  padding: 6px 0 6px 24px;
  margin: 30px 0;
  font-style: italic;
}

.lesson-tool {
  margin: 40px 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}
.lesson-tool-header {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 6px;
}
.lesson-tool-sub {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 22px;
}

/* ============================================================
   LESSON VIDEOS (two compact cards side by side: ES + EN)
   ============================================================ */
.lesson-videos-wrap {
  margin: 48px 0 32px;
}
.lesson-videos-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-2);
  margin: 0 0 14px;
}
.lesson-videos-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 600px) {
  .lesson-videos-row { grid-template-columns: 1fr; }
}

.vcard {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: all 0.3s var(--ease-out);
}
.vcard:hover {
  border-color: var(--gold);
  box-shadow: 0 8px 24px rgba(14,26,46,0.08);
  transform: translateY(-2px);
}
[data-theme="dark"] .vcard { background: #111924; border-color: rgba(232,226,208,0.06); }
[data-theme="dark"] .vcard:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.3); }

.vcard-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--cream-3);
  cursor: pointer;
  overflow: hidden;
}
[data-theme="dark"] .vcard-thumb { background: #1a2438; }
.vcard-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
  display: block;
  background: linear-gradient(135deg, var(--cream-3) 0%, var(--paper) 100%);
}
.vcard-thumb img.failed {
  /* Broken thumbnails: hide the img visual but keep the layout slot.
     The overlay still shows the play button so the card remains usable. */
  opacity: 0;
}
.vcard:hover .vcard-thumb img { transform: scale(1.04); }

.vcard-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.35));
  display: flex;
  align-items: center;
  justify-content: center;
}
.vcard-play {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(14,26,46,0.3);
  transition: all 0.25s var(--ease-out);
  color: var(--coral-2);
}
.vcard-play:hover { transform: scale(1.1); background: var(--gold); color: var(--ink); }
.vcard-play svg { width: 22px; height: 22px; margin-left: 2px; }

.vcard-dur {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(14,26,46,0.85);
  color: var(--cream);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 7px;
  border-radius: 4px;
  font-variant-numeric: tabular-nums;
}

.vcard-info {
  padding: 14px 16px 16px;
}
.vcard-flag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.vcard-flag .flag-img {
  width: 18px;
  height: 13px;
  border-radius: 2px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
  vertical-align: middle;
}
.vcard-title {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.vcard-channel {
  font-size: 12px;
  color: var(--ink-soft);
  margin: 0 0 10px;
}
.vcard-yt {
  font-size: 12px;
  font-weight: 600;
  color: var(--gold-2);
  text-decoration: none;
  transition: color 0.2s;
}
.vcard-yt:hover { color: var(--gold); }

/* Embedded state */
.vcard.playing .vcard-thumb { aspect-ratio: 16 / 9; }
.vcard.playing .vcard-overlay,
.vcard.playing .vcard-play,
.vcard.playing .vcard-dur { display: none; }
.vcard.playing iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.lesson-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  max-width: 720px;
  margin: 0 auto 60px;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
}
@media (max-width: 600px) {
  /* On mobile, stack the primary action on its own full-width row
     and let Anterior/Siguiente share the second row. This avoids
     text truncation on "Marcar como leída" which was getting clipped. */
  .lesson-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "complete complete"
      "prev next";
    gap: 10px;
  }
  .lesson-actions .btn { min-width: 0; white-space: nowrap; padding-left: 16px; padding-right: 16px; }
  .lesson-actions #lessonComplete { grid-area: complete; }
  .lesson-actions #lessonPrev     { grid-area: prev; }
  .lesson-actions #lessonNext     { grid-area: next; }
}

/* ============================================================
   TOOLS
   ============================================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 18px;
  margin: 30px 0 50px;
}
.tool-card {
  text-align: left;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  cursor: pointer;
  transition: all 0.35s var(--ease-out);
  font: inherit;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 14px 30px rgba(14,26,46,0.08);
}
.tool-icon {
  width: 38px;
  height: 38px;
  background: var(--cream-2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-2);
  margin-bottom: 6px;
}
.tool-icon svg { width: 22px; height: 22px; }
.tool-title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0;
}
.tool-desc {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}

.tool-detail {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px clamp(24px, 4vw, 50px);
  margin-bottom: 60px;
}
.tool-detail h2 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 32px;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}
.tool-detail .tool-detail-sub {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0 0 30px;
}

.field {
  margin-bottom: 22px;
}
.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.field-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.field input[type="number"],
.field input[type="text"],
.field select {
  flex: 1;
  background: var(--cream);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font: inherit;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-weight: 500;
  transition: all 0.2s;
}
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(200,155,60,0.18);
}
.field input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--cream-3);
  border-radius: 2px;
  outline: none;
}
.field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  background: var(--ink);
  border: 3px solid var(--cream);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(14,26,46,0.25);
  cursor: pointer;
  transition: transform 0.2s;
}
.field input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.field input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px;
  background: var(--ink);
  border: 3px solid var(--cream);
  border-radius: 50%;
  cursor: pointer;
}
.field-value {
  min-width: 90px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--ink);
  font-size: 15px;
}

.results {
  margin-top: 30px;
  padding: 26px;
  background: var(--ink);
  color: var(--cream);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.results::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 0%, rgba(200,155,60,0.18) 0, transparent 50%);
  pointer-events: none;
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 22px;
  position: relative;
}
.result-stat .label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 4px;
}
.result-stat .value {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -0.02em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}
.result-stat .value.coral { color: var(--coral); }
.result-stat .value.cream { color: var(--cream); }

.chart {
  margin-top: 28px;
  width: 100%;
  height: 220px;
  background: var(--cream);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  padding: 16px;
}
/* Theme-aware SVG chart labels */
.chart-grid { stroke: var(--line); }
.chart-label { fill: var(--ink-soft); }
.chart-label-max { fill: var(--ink); }
[data-theme="dark"] .chart { background: #111924; border-color: rgba(232,226,208,0.08); }
[data-theme="dark"] .chart-grid { stroke: rgba(232,226,208,0.08); }
[data-theme="dark"] .chart-label { fill: #7a7567; }
[data-theme="dark"] .chart-label-max { fill: #e8e2d0; }

.tool-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--ink-3);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 18px;
  padding: 0;
}
.tool-back:hover { color: var(--gold-2); }

/* ============================================================
   ABOUT
   ============================================================ */
.about-content {
  max-width: 720px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-2);
  padding-bottom: 80px;
}
.about-content h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
  margin: 50px 0 16px;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.about-content p { margin: 0 0 20px; }
.about-content ul {
  padding-left: 24px;
  margin-bottom: 24px;
}
.about-content li { margin-bottom: 10px; }
.about-content strong { color: var(--ink); }
.signature {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--ink-soft);
  margin-top: 40px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--ink);
  color: var(--cream);
  padding: 60px var(--gut);
  margin-top: 60px;
  position: relative;
  z-index: 2;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--gold);
  margin-bottom: 16px;
}
.footer-tag {
  font-family: var(--font-serif);
  font-size: 19px;
  font-style: italic;
  margin: 0 0 30px;
  opacity: 0.85;
}
.footer-donate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: rgba(200,155,60,0.15);
  border: 1px solid rgba(200,155,60,0.3);
  border-radius: 999px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  margin-bottom: 24px;
  transition: all 0.3s var(--ease-out);
}
.footer-donate:hover {
  background: rgba(200,155,60,0.25);
  border-color: var(--gold);
  transform: translateY(-2px);
}
.footer-donate svg { color: var(--coral); }
.footer-meta {
  font-size: 12px;
  letter-spacing: 0.06em;
  opacity: 0.55;
  margin: 0;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(14,26,46,0.6);
  backdrop-filter: blur(6px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}
.modal-backdrop[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ============================================================
   READING PROGRESS BAR
   ============================================================ */
.reading-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--coral));
  z-index: 60;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* ============================================================
   PARTICLE CANVAS
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
}
.hero-particles {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}
[data-theme="dark"] .hero-particles {
  opacity: 1;
}
.hero > *:not(.hero-particles) {
  position: relative;
  z-index: 1;
}

/* ============================================================
   LANGUAGE PICKER
   ============================================================ */
.langctl {
  position: relative;
}
.langctl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px 6px 10px;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
}
.langctl-btn:hover {
  border-color: var(--gold);
  color: var(--gold-2);
}
.langctl-btn-flag {
  width: 22px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  flex-shrink: 0;
  background: rgba(0,0,0,0.04);
}
.langctl-btn-flag svg,
.langctl-btn-flag img { width: 100%; height: 100%; display: block; object-fit: cover; }

/* Universal flag image — used in language menu, video cards, anywhere */
.flag-img {
  width: 22px;
  height: 16px;
  border-radius: 2px;
  display: inline-block;
  vertical-align: middle;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
  background: rgba(0,0,0,0.04);
}
.langctl-code { font-variant-numeric: tabular-nums; }

.langctl-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  max-height: 420px;
  overflow-y: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px;
  margin: 0;
  list-style: none;
  z-index: 60;
  box-shadow: 0 20px 60px rgba(14,26,46,0.15);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.langctl-menu:not([hidden]) {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
[data-theme="dark"] .langctl-menu {
  background: #111924;
  border-color: rgba(232,226,208,0.08);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.langctl-menu li {
  margin: 0;
}
.langctl-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  background: none;
  border: none;
  border-radius: 8px;
  color: var(--ink);
  text-align: left;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
}
.langctl-opt:hover {
  background: var(--cream-2);
}
.langctl-opt.active {
  background: rgba(200,155,60,0.12);
  color: var(--gold-2);
  font-weight: 600;
}
[data-theme="dark"] .langctl-opt:hover { background: #1a2438; }
[data-theme="dark"] .langctl-opt.active { background: rgba(212,168,64,0.15); color: var(--gold); }

.langctl-opt .flag-img {
  width: 22px;
  height: 16px;
}
.langctl-native {
  flex: 1;
  font-weight: 500;
}
.langctl-en {
  font-size: 11px;
  color: var(--ink-soft);
  font-weight: 400;
}

/* RTL support */
[dir="rtl"] .langctl-menu { left: 0; right: auto; }
[dir="rtl"] .topnav,
[dir="rtl"] .lesson,
[dir="rtl"] .hero-text,
[dir="rtl"] .manifesto,
[dir="rtl"] .about-content,
[dir="rtl"] .view-header,
[dir="rtl"] .glossary-item,
[dir="rtl"] .week-info { direction: rtl; text-align: right; }
[dir="rtl"] .hero-title,
[dir="rtl"] .hero-title-top,
[dir="rtl"] .hero-title-big { text-align: right; }
[dir="rtl"] .manifesto-divider { margin-right: 0; }
[dir="rtl"] .hero {
  grid-template-columns: 1fr 1.1fr;
}
[dir="rtl"] .hero-text { order: 2; }
[dir="rtl"] .hero-compass { order: 1; }
[dir="rtl"] .callout {
  border-left: none;
  border-right: 3px solid var(--gold);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
[dir="rtl"] .who-list li { padding: 22px 44px 22px 0; }
[dir="rtl"] .who-list li::before { left: auto; right: 8px; content: '←'; }
[dir="rtl"] .who-list li:hover { padding-left: 0; padding-right: 56px; }
[dir="rtl"] .who-list li:hover::before { transform: translateX(-8px); }
[dir="rtl"] .lesson blockquote {
  border-left: none;
  border-right: 3px solid var(--ink);
  padding: 6px 24px 6px 0;
}
[dir="rtl"] .lesson-card::before { left: auto; right: 0; }
[dir="rtl"] .navlink,
[dir="rtl"] .drawer-link { text-align: right; }
[dir="rtl"] .mobile-drawer { right: auto; left: -100%; border-left: none; border-right: 1px solid var(--line); }
[dir="rtl"] .mobile-drawer.open { left: 0; right: auto; }
[dir="rtl"] .lesson-video { grid-template-columns: 1fr minmax(200px, 42%); }
[dir="rtl"] .lesson-video-thumb { border-right: none; border-left: 1px solid var(--line); }

/* Arabic font stack — use system Arabic fonts */
[lang="ar"] {
  font-family: 'Amiri', 'Scheherazade New', 'Noto Naskh Arabic', var(--font-sans);
}
[lang="ar"] .hero-title,
[lang="ar"] .section-title,
[lang="ar"] .lesson h1,
[lang="ar"] .lesson h2,
[lang="ar"] .view-header h1,
[lang="ar"] .manifesto-line {
  font-family: 'Amiri', 'Scheherazade New', 'Noto Naskh Arabic', var(--font-serif);
}

/* CJK font stacks for readability */
[lang="zh"] { font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', var(--font-sans); }
[lang="ja"] { font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic Pro', 'Meiryo', var(--font-sans); }
[lang="ko"] { font-family: 'Noto Sans KR', 'Malgun Gothic', var(--font-sans); }

/* ============================================================
   AUTH PILL
   ============================================================ */
.auth-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px 6px 10px;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
}
.auth-pill:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.auth-pill-icon { color: inherit; }
.auth-pill.logged-in {
  background: rgba(200,155,60,0.12);
  border-color: var(--gold);
  color: var(--gold);
}

@media (max-width: 720px) {
  .auth-pill-text { display: none; }
  .auth-pill { padding: 8px; border-radius: 50%; }
}

/* ============================================================
   AUTH MODAL
   ============================================================ */
#authModal {
  position: fixed;
  inset: 0;
  background: rgba(14,26,46,0.6);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}
#authModal[hidden] { display: none; }

.auth-card {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 36px 36px;
  width: min(420px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(14,26,46,0.25);
  animation: slideUp 0.4s var(--ease-out);
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
[data-theme="dark"] .auth-card {
  background: #111924;
  border-color: rgba(232,226,208,0.1);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.auth-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--ink-soft);
  padding: 6px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
}
.auth-close:hover { color: var(--ink); background: var(--cream-2); }

.auth-view[hidden] { display: none; }
.auth-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--ink);
}
.auth-sub {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 26px;
  line-height: 1.5;
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 13px 20px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.25s;
}
.btn-google:hover {
  border-color: var(--ink);
  box-shadow: 0 4px 12px rgba(14,26,46,0.08);
}
[data-theme="dark"] .btn-google {
  background: #1a2438;
  border-color: rgba(232,226,208,0.15);
}
[data-theme="dark"] .btn-google:hover {
  border-color: rgba(232,226,208,0.3);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 22px 0;
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

.auth-field {
  margin-bottom: 14px;
}
.auth-field input {
  width: 100%;
  background: var(--cream-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  transition: all 0.2s;
}
.auth-field input::placeholder { color: var(--ink-soft); }
.auth-field input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(200,155,60,0.15);
}
[data-theme="dark"] .auth-field input {
  background: #141c2c;
  border-color: rgba(232,226,208,0.12);
}

.auth-error {
  font-size: 13px;
  color: var(--coral-2);
  margin: 0 0 14px;
  padding: 10px 14px;
  background: rgba(224,120,86,0.08);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--coral);
}
.auth-error[hidden] { display: none; }

.auth-hint {
  font-size: 13px;
  color: var(--ink);
  margin: 0 0 14px;
  padding: 10px 14px;
  background: rgba(200,155,60,0.10);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
}
.auth-hint[hidden] { display: none; }

.auth-forgot {
  background: none;
  border: 0;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: right;
  display: block;
  margin: -6px 0 12px auto;
  padding: 4px 6px;
  cursor: pointer;
  font-family: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(14,26,46,0.18);
  text-underline-offset: 3px;
  transition: color .2s;
}
.auth-forgot:hover { color: var(--gold-2); }

.auth-submit {
  width: 100%;
  margin-top: 6px;
}

.auth-switch {
  text-align: center;
  font-size: 14px;
  color: var(--ink-soft);
  margin: 22px 0 0;
}
.auth-switch button {
  background: none;
  border: none;
  color: var(--gold);
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.auth-switch button:hover { color: var(--gold-2); }

.auth-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--coral));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  margin: 0 auto 18px;
}
.auth-sync-status {
  font-size: 13px;
  color: var(--moss);
  margin: 12px 0 24px;
  text-align: center;
}
.auth-logout {
  width: 100%;
}

#authProfile {
  text-align: center;
}
#authProfile .auth-title { text-align: center; }
#authProfile .auth-sub { text-align: center; }

.avatar-picker {
  margin: 20px 0 24px;
  text-align: left;
}
.avatar-picker-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 12px;
  text-align: center;
}
.avatar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.avatar-option {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px solid var(--line);
  background: var(--cream-2);
  padding: 6px;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.avatar-option:hover {
  border-color: var(--gold);
  transform: scale(1.08);
}
.avatar-option.selected {
  border-color: var(--gold);
  background: rgba(200,155,60,0.15);
  box-shadow: 0 0 0 3px rgba(200,155,60,0.2);
}
.avatar-option svg {
  width: 100%;
  height: 100%;
}
.avatar-option-label {
  display: none;
}
[data-theme="dark"] .avatar-option {
  background: #1a2438;
  border-color: rgba(232,226,208,0.1);
}
[data-theme="dark"] .avatar-option.selected {
  background: rgba(212,168,64,0.15);
  border-color: var(--gold);
}

/* Auth avatar display (selected avatar) */
.auth-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--coral));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 600;
  margin: 0 auto 18px;
  overflow: hidden;
  border: 2px solid var(--gold);
}
.auth-avatar svg {
  width: 100%;
  height: 100%;
}
.auth-avatar.has-avatar {
  background: var(--cream-2);
  padding: 4px;
}
[data-theme="dark"] .auth-avatar.has-avatar {
  background: #1a2438;
}

/* ============================================================
   THEME TOGGLE
   ============================================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-3);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
}
.theme-toggle:hover {
  color: var(--gold);
  border-color: var(--gold);
  transform: rotate(15deg);
}
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ============================================================
   HAMBURGER + MOBILE DRAWER
   ============================================================ */
.hamburger {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 720px) {
  .hamburger { display: flex; }
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--cream);
  border-left: 1px solid var(--line);
  z-index: 49;
  display: flex;
  flex-direction: column;
  padding: 90px 32px 40px;
  gap: 4px;
  transition: right 0.4s var(--ease-out);
  box-shadow: -8px 0 30px rgba(14,26,46,0);
}
.mobile-drawer.open {
  right: 0;
  box-shadow: -8px 0 30px rgba(14,26,46,0.15);
}

.drawer-link {
  background: none;
  border: none;
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink-3);
  text-align: left;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: color 0.25s, padding 0.3s var(--ease-out);
}
.drawer-link:hover, .drawer-link.active {
  color: var(--ink);
  padding-left: 12px;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(14,26,46,0.3);
  z-index: 48;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}
.drawer-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================================
   GLOSSARY
   ============================================================ */
.glossary-search {
  margin-bottom: 30px;
  max-width: 480px;
}
.glossary-search input {
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 14px 24px;
  font: inherit;
  font-size: 16px;
  color: var(--ink);
  transition: all 0.25s;
}
.glossary-search input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(200,155,60,0.15);
}
.glossary-search input::placeholder { color: var(--ink-soft); }

.glossary-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 60px;
}
.glossary-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  align-items: baseline;
}
@media (max-width: 640px) {
  .glossary-item { grid-template-columns: 1fr; gap: 6px; }
}
.glossary-term {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.glossary-def {
  font-size: 16px;
  color: var(--ink-2);
  line-height: 1.55;
}

/* ============================================================
   RESOURCES
   ============================================================ */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}
.resource-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px 26px;
  transition: all 0.35s var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.resource-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 14px 30px rgba(14,26,46,0.08);
}
.resource-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--cream-2);
  color: var(--gold-2);
  width: fit-content;
}
.resource-tag.book { background: rgba(107,142,78,0.12); color: var(--moss); }
.resource-tag.channel { background: rgba(224,120,86,0.12); color: var(--coral-2); }
.resource-tag.tool { background: rgba(200,155,60,0.12); color: var(--gold-2); }
.resource-title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.resource-author {
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}
.resource-desc {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.5;
  flex: 1;
}
.resource-why {
  font-size: 13px;
  font-style: italic;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 4px;
}

/* ============================================================
   COUNTER ANIMATION (for tool results)
   ============================================================ */
.result-stat .value {
  transition: opacity 0.15s;
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .topbar, .footer, .lesson-actions, .back-btn, .reading-bar, .hero-particles { display: none; }
  body { background: white; }
  .lesson { max-width: 100%; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}