:root {
  --cream: #f9f6f0;
  --dark: #183126;
  --brown: #4a3728;
  --chocolate: #5c4a3a;
  --terracotta: #a67c52;
  --terracotta-dark: #8b6542;
  --sage: #7a9b76;
  --sage-dark: #5f7d5c;
  --gold: #d4a056;
  --text: #3d2e24;
  --muted: #7a6b5e;
  --card: #fffcf8;
  --border: #e5ddd3;
  --glow: rgba(166, 124, 82, 0.22);
  --teal: #3f8f8a;
  --teal-dark: #2c6d69;
  --gradient-warm: linear-gradient(135deg, var(--terracotta), var(--gold));
  --gradient-cool: linear-gradient(135deg, var(--sage-dark), var(--teal));
}

@font-face {
  font-family: "Nunito";
  src: url("assets/assets/fonts/Nunito-VariableFont_wght.ttf") format("truetype");
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Nunito", system-ui, sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.landing-page {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 58% 35% at 0% 20%, rgba(122, 155, 118, 0.16), transparent),
    radial-gradient(ellipse 45% 30% at 100% 8%, rgba(212, 160, 86, 0.18), transparent),
    var(--cream);
}

.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(249, 246, 240, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.landing-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.landing-brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 5px 14px var(--glow);
}

.landing-brand span {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.landing-nav-links a:not(.btn-login) {
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.2s;
}

.landing-nav-links a:not(.btn-login):hover {
  color: var(--sage-dark);
}

.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  background: var(--gradient-warm);
  color: white !important;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 14px;
  border: 1px solid transparent;
  box-shadow: 0 4px 24px var(--glow);
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 32px var(--glow);
  filter: brightness(1.06);
}

.hero {
  position: relative;
  min-height: min(680px, calc(100vh - 74px));
  display: grid;
  align-items: center;
  margin: 0;
  padding: 5.25rem max(2rem, calc((100vw - 1100px) / 2)) 4.25rem;
  background-image:
    linear-gradient(90deg, rgba(249, 246, 240, 0.96) 0%, rgba(249, 246, 240, 0.86) 30%, rgba(249, 246, 240, 0.28) 58%, rgba(249, 246, 240, 0.04) 100%),
    url("assets/images/hero-learner-elder.png");
  background-position: center;
  background-size: cover;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, var(--cream));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 520px;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1.15;
  margin: 0 0 1.25rem;
  font-weight: 800;
}

.hero-content h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--sage-dark), var(--terracotta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 1.75rem;
  background: var(--gradient-warm);
  color: white;
  font-weight: 600;
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(166, 124, 82, 0.28);
  transition: filter 0.2s, transform 0.2s;
}

.btn-primary:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 1.75rem;
  border: 1px solid var(--sage-dark);
  color: var(--sage-dark);
  font-weight: 600;
  border-radius: 14px;
  transition: border-color 0.2s, background 0.2s;
}

.btn-secondary:hover {
  border-color: var(--sage-dark);
  background: rgba(122, 155, 118, 0.1);
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section-label {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border: 0;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  box-shadow: 0 10px 24px rgba(74, 55, 40, 0.1);
}

.section-label--warm {
  background: var(--gradient-warm);
}

.section-label--cool {
  background: var(--gradient-cool);
}

.section h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0 0 1rem;
}

.section > p.lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 0 2.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card--visual {
  padding-top: 0.85rem;
}

.feature-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  margin: 0 0 1.15rem;
  object-fit: cover;
  border-radius: 14px;
  background: #eee7df;
}

.feature-card:hover {
  border-color: var(--terracotta);
  transform: translateY(-2px);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  border-radius: 14px;
}

.feature-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.feature-icon--terracotta { background: #f4e8dc; color: var(--terracotta-dark); }
.feature-icon--gold { background: #fbf0d9; color: #b87c20; }
.feature-icon--green { background: #e5eee3; color: var(--sage-dark); }
.feature-icon--brown { background: #eee7df; color: var(--brown); }

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.language-atlas {
  display: grid;
  gap: 2.5rem;
  padding: 3rem;
  background:
    linear-gradient(135deg, rgba(255, 250, 242, 0.92), rgba(237, 243, 233, 0.92)),
    radial-gradient(circle at 18% 22%, rgba(212, 160, 86, 0.22), transparent 34%);
  border: 1px solid var(--border);
  border-radius: 28px;
}

.language-atlas__intro {
  max-width: 840px;
}

.language-atlas__intro p {
  color: var(--muted);
  margin: 0;
}

.atlas-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.atlas-highlights span {
  padding: 0.65rem 0.9rem;
  border: 1px solid rgba(166, 124, 82, 0.22);
  border-radius: 999px;
  background: rgba(255, 252, 248, 0.72);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
}

.language-atlas__grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(320px, 1.05fr);
  gap: 2rem;
  align-items: stretch;
}

.coverage-map {
  display: grid;
  gap: 1rem;
  align-items: center;
  align-content: center;
  padding: 1.25rem;
  border: 1px solid rgba(166, 124, 82, 0.16);
  border-radius: 22px;
  background: rgba(255, 252, 248, 0.7);
}

.coverage-map img {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 20px;
}

.coverage-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.coverage-list span {
  display: grid;
  gap: 0.1rem;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-size: 0.78rem;
}

.coverage-list b {
  color: var(--text);
  font-size: 0.88rem;
}

.family-panel {
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: 1.5rem;
  border: 1px solid rgba(95, 125, 92, 0.18);
  border-radius: 22px;
  background: rgba(255, 252, 248, 0.82);
  box-shadow: 0 20px 50px rgba(74, 55, 40, 0.08);
}

.family-panel h3 {
  margin: 0 0 0.25rem;
  font-size: 1.2rem;
}

.language-family {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.64);
}

.language-family strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text);
  font-size: 1rem;
}

.language-family p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.family-marker {
  width: 14px;
  height: 14px;
  margin-top: 0.28rem;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(166, 124, 82, 0.12);
}

.family-marker--warm { background: var(--gradient-warm); }
.family-marker--cool { background: var(--gradient-cool); }
.family-marker--earth { background: linear-gradient(135deg, var(--brown), var(--sage)); }

.atlas-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.atlas-cta {
  display: inline-flex;
  align-items: center;
  margin-top: 0.25rem;
  padding: 0.85rem 1.45rem;
  border-radius: 14px;
  background: var(--gradient-warm);
  color: white;
  font-weight: 800;
  box-shadow: 0 10px 28px rgba(166, 124, 82, 0.24);
  transition: filter 0.2s, transform 0.2s;
}

.atlas-cta:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.atlas-cta--ghost {
  background: transparent;
  border: 1.5px solid var(--terracotta);
  color: var(--terracotta-dark);
  box-shadow: none;
}

.atlas-cta--ghost:hover {
  background: rgba(166, 124, 82, 0.08);
  filter: none;
}

.page-header {
  position: relative;
  padding: 6.5rem max(2rem, calc((100vw - 1100px) / 2)) 4rem;
  background-color: #2b2115;
  background-image:
    linear-gradient(90deg, rgba(20, 18, 12, 0.9) 0%, rgba(29, 24, 14, 0.76) 42%, rgba(45, 28, 11, 0.2) 100%),
    url("assets/images/language-families-hero.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: white;
  overflow: hidden;
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(212, 160, 86, 0.08), transparent 48%);
  pointer-events: none;
}

.page-header-inner {
  position: relative;
  max-width: 720px;
}

.page-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.88);
}

.page-back:hover {
  color: white;
}

.page-header h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
}

.page-header p {
  margin: 0;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 640px;
}

.macro-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.macro-card {
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.macro-card .family-marker {
  margin-bottom: 0.75rem;
  box-shadow: 0 0 0 5px rgba(166, 124, 82, 0.1);
}

.macro-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.macro-card p {
  margin: 0;
  font-size: 0.87rem;
  color: var(--muted);
  line-height: 1.55;
}

.macro-card .macro-stat {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--terracotta-dark);
}

.family-marker--khoisan {
  background: linear-gradient(135deg, var(--gold), var(--sage-dark));
}

.family-deep {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.family-deep-card {
  padding: 1.75rem;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: rgba(255, 252, 248, 0.85);
  box-shadow: 0 20px 50px rgba(74, 55, 40, 0.08);
}

.family-deep-card .family-marker {
  margin-bottom: 1rem;
}

.macro-tag {
  display: inline-block;
  margin-bottom: 0.6rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(122, 155, 118, 0.14);
  color: var(--sage-dark);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.family-deep-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.3rem;
}

.family-deep-card p {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.6;
}

.branch-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.branch-chips span {
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: white;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text);
}

.heritage-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat {
  text-align: center;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 16px;
}

.stat strong {
  display: block;
  font-size: 1.75rem;
  color: var(--terracotta-dark);
  margin-bottom: 0.25rem;
}

.stat span {
  font-size: 0.8rem;
  color: var(--muted);
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  margin-top: 2.75rem;
  padding: 0;
  list-style: none;
}

.steps-list::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 16%;
  right: 16%;
  height: 2px;
  background: linear-gradient(90deg, var(--sage-dark), var(--teal));
  opacity: 0.34;
}

.step-item {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 0.8rem;
  padding: 0 1.25rem;
  text-align: center;
}

.step-number {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient-cool);
  color: white;
  font-weight: 800;
  font-size: 1.2rem;
  border: 6px solid var(--cream);
  box-shadow: 0 8px 24px rgba(63, 143, 138, 0.3);
  z-index: 1;
}

.step-item h3 {
  margin: 0;
  font-size: 1.1rem;
}

.step-item p {
  margin: 0;
  max-width: 260px;
  font-size: 0.9rem;
  color: var(--muted);
}

.trust-block {
  display: grid;
  grid-template-columns: minmax(220px, 360px) 1fr;
  align-items: center;
  gap: 2.5rem;
  padding: 1.25rem;
  background: linear-gradient(135deg, #fffaf2, #edf3e9);
  border: 1px solid var(--border);
  border-radius: 24px;
}

.trust-avatar {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 18px 42px rgba(74, 55, 40, 0.16);
}

.trust-quote {
  margin: 0 0 0.75rem;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.18;
}

.trust-attribution {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.landing-footer {
  position: relative;
  overflow: hidden;
  padding: 5rem 2rem 2.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
  background: linear-gradient(135deg, #3d2e24, #183126);
}

.footer-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}

.footer-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-warm);
  border: 0;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: white;
}

.footer-badge::before {
  content: none;
}

.landing-footer h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 1rem;
  color: var(--cream);
}

.landing-footer h2 em {
  font-style: normal;
  color: #f0bd78;
}

.footer-lead {
  color: #e8dfd0;
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 0 auto 2rem;
  max-width: 560px;
}

.footer-contacts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.footer-contact-chip {
  padding: 0.85rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--cream);
  transition: border-color 0.2s, background 0.2s;
}

.footer-contact-chip:hover {
  border-color: rgba(240, 189, 120, 0.65);
  background: rgba(240, 189, 120, 0.1);
}

.footer-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.btn-footer-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.95rem 1.75rem;
  background: var(--gradient-warm);
  color: white !important;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.22);
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}

.btn-footer-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
}

.btn-footer-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.95rem 1.75rem;
  background: transparent;
  color: var(--cream) !important;
  font-weight: 600;
  font-size: 1rem;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  transition: border-color 0.2s, background 0.2s;
}

.btn-footer-secondary:hover {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.05);
}

.footer-copy {
  color: #e8dfd0;
  font-size: 0.85rem;
  margin: 0;
  opacity: 0.8;
}

#flutter-app {
  display: none;
  width: 100%;
  height: 100%;
}

body.flutter-mode #landing-page {
  display: none;
}

body.flutter-mode #flutter-app {
  display: block;
}

body.flutter-mode {
  overflow: hidden;
  height: 100%;
}

@media (max-width: 768px) {
  .landing-nav {
    padding: 0.85rem 1.25rem;
  }

  .landing-nav-links a:not(.btn-login) {
    display: none;
  }

  .hero {
    min-height: 620px;
    align-items: end;
    padding: 8rem 1.5rem 4rem;
    background-image:
      linear-gradient(180deg, rgba(249, 246, 240, 0.18) 0%, rgba(249, 246, 240, 0.62) 42%, rgba(249, 246, 240, 0.98) 100%),
      url("assets/images/hero-learner-elder.png");
    background-position: 66% center;
  }

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .language-atlas {
    padding: 2rem 1.5rem;
  }

  .language-atlas__grid {
    grid-template-columns: 1fr;
  }

  .heritage-stats {
    grid-template-columns: 1fr;
  }

  .coverage-list {
    grid-template-columns: 1fr;
  }

  .atlas-actions {
    flex-direction: column;
  }

  .atlas-cta {
    justify-content: center;
  }

  .page-header {
    padding: 5rem 1.5rem 3rem;
  }

  .macro-grid {
    grid-template-columns: 1fr 1fr;
  }

  .family-deep {
    grid-template-columns: 1fr;
  }

  .steps-list {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .steps-list::before {
    display: none;
  }

  .trust-block {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 2rem 1.5rem;
  }

  .trust-avatar {
    max-width: 320px;
    margin: 0 auto;
  }

  .footer-contacts {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-footer-primary,
  .btn-footer-secondary {
    justify-content: center;
  }
}