:root {
  --paper: #fff7ec;
  --paper-2: #eef8ff;
  --ink: #1c1610;
  --muted: #5e5348;
  --teal: #0f6a63;
  --teal-deep: #0a4541;
  --saffron: #e25c1a;
  --gold: #e0a84a;
  --rose: #c45c62;
  --sky: #7eb8c9;
  --mint: #8fd4b4;
  --lavender: #c9b6ff;
  --peach: #ffb8a0;
  --white: #fffaf3;
  --shadow: 0 18px 50px rgba(28, 22, 16, 0.12);
  --radius: 28px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Sora", system-ui, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, #fff8ef 0%, #f3fbff 38%, #fff0f6 72%, #f4fff0 100%);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(circle at 8% 12%, rgba(255, 184, 160, 0.42), transparent 24%),
    radial-gradient(circle at 92% 10%, rgba(126, 184, 201, 0.38), transparent 26%),
    radial-gradient(circle at 85% 78%, rgba(224, 168, 74, 0.34), transparent 28%),
    radial-gradient(circle at 12% 82%, rgba(143, 212, 180, 0.32), transparent 26%),
    radial-gradient(circle at 50% 48%, rgba(201, 182, 255, 0.18), transparent 34%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.95) 1.5px, transparent 1.6px),
    radial-gradient(circle, rgba(15, 106, 99, 0.12) 1px, transparent 1.1px),
    radial-gradient(circle at 20px 20px, rgba(226, 92, 26, 0.1) 2px, transparent 2.1px);
  background-size: 34px 34px, 54px 54px, 78px 78px;
  background-position: 0 0, 12px 18px, 36px 8px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0.55));
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--ink);
  color: var(--white);
  padding: 8px 12px;
  z-index: 20;
}
.skip:focus { left: 8px; }

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background:
    linear-gradient(90deg, #ffe8a8 0%, #ffd4ea 32%, #bfe9ff 68%, #cbffd0 100%);
  border-bottom: 3px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 10px 28px rgba(28, 22, 16, 0.08);
}

.nav::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 6% 50%, rgba(255, 184, 77, 0.55) 0 14px, transparent 15px),
    radial-gradient(circle at 22% 20%, rgba(255, 140, 180, 0.42) 0 10px, transparent 11px),
    radial-gradient(circle at 48% 80%, rgba(126, 184, 201, 0.4) 0 12px, transparent 13px),
    radial-gradient(circle at 72% 35%, rgba(255, 230, 120, 0.48) 0 11px, transparent 12px),
    radial-gradient(circle at 90% 60%, rgba(143, 212, 180, 0.45) 0 13px, transparent 14px);
}

.nav::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.95) 1.5px, transparent 1.6px);
  background-size: 22px 22px;
}

.nav-links a.btn {
  padding: 10px 18px;
  font-size: 0.88rem;
}

.nav-links a.btn-saffron {
  box-shadow: 0 8px 20px rgba(226, 92, 26, 0.35);
  border: 2px solid rgba(255, 255, 255, 0.75);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.03em;
  padding: 6px 10px 6px 0;
}

.brand img { width: 36px; height: 36px; }

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.62);
  color: var(--teal-deep);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--teal);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(15, 106, 99, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid rgba(28, 22, 16, 0.18);
}

.btn-saffron {
  background: var(--saffron);
  color: white;
  box-shadow: 0 10px 24px rgba(226, 92, 26, 0.28);
}

.menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.92);
  border: 2px solid rgba(28, 22, 16, 0.12);
  border-radius: 999px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--ink);
  box-shadow: 0 6px 16px rgba(28, 22, 16, 0.12);
  cursor: pointer;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

.hero-band {
  position: relative;
  padding: 24px 0 36px;
  background: transparent;
  scroll-margin-top: 84px;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  padding: 32px 0 12px;
  position: relative;
  z-index: 1;
}

.hero-copy {
  background: transparent;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 106, 99, 0.1);
  color: var(--teal-deep);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1, h2, h3, .display {
  font-family: "Fraunces", Georgia, serif;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  margin: 16px 0 14px;
}

.telugu {
  font-family: "Noto Sans Telugu", sans-serif;
  color: var(--saffron);
  font-size: 1.15rem;
  font-weight: 600;
}

.lede {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 38ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.kids-art {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 36px;
  padding: 12px 12px 18px;
  box-shadow: 0 20px 50px rgba(28, 22, 16, 0.14);
  border: 3px solid rgba(255, 255, 255, 0.95);
}

.kids-art img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 28px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center center;
}

.names {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  padding: 0 22px;
  font-family: "Fraunces", serif;
  font-weight: 600;
  color: var(--teal-deep);
}

.section { padding: 72px 0; scroll-margin-top: 84px; position: relative; }

#branches {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 240, 220, 0.28));
}

#apps {
  background: linear-gradient(180deg, rgba(238, 248, 255, 0.35), rgba(255, 255, 255, 0.12));
}

#namo {
  background: linear-gradient(180deg, rgba(255, 240, 246, 0.32), rgba(243, 255, 240, 0.22));
}

#nandu-lab {
  background:
    radial-gradient(circle at 12% 18%, rgba(167, 139, 250, 0.22), transparent 42%),
    radial-gradient(circle at 88% 72%, rgba(56, 189, 248, 0.18), transparent 38%),
    linear-gradient(180deg, rgba(30, 27, 75, 0.06), rgba(255, 240, 220, 0.28));
  overflow: hidden;
}

#nandu-lab::before {
  content: "⚡ 🎹 ♪ ✨";
  position: absolute;
  inset: 0;
  font-size: clamp(2rem, 6vw, 4rem);
  letter-spacing: 0.35em;
  color: rgba(124, 58, 237, 0.07);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: lab-float 18s ease-in-out infinite alternate;
}

@keyframes lab-float {
  from { transform: translateY(-8px) rotate(-2deg); }
  to { transform: translateY(8px) rotate(2deg); }
}

.lab-kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #7c3aed;
  background: linear-gradient(90deg, rgba(167, 139, 250, 0.25), rgba(56, 189, 248, 0.2));
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.lab-projects {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}

.lab-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-content: start;
  background: linear-gradient(145deg, #1e1b4b 0%, #312e81 52%, #0f766e 130%);
  color: #f8fafc;
  border-radius: 28px;
  padding: 22px;
  box-shadow: 0 24px 60px rgba(30, 27, 75, 0.28);
  margin-bottom: 0;
  position: relative;
  z-index: 1;
  min-height: 100%;
}

.lab-feature-quiz {
  background: linear-gradient(145deg, #46178f 0%, #6b21a8 48%, #312e81 130%);
}

.lab-feature-piano {
  background: linear-gradient(145deg, #1e1b4b 0%, #312e81 52%, #0f766e 130%);
}

.lab-head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.lab-btn-light {
  color: #f8fafc;
  border-color: rgba(248, 250, 252, 0.35);
}

.lab-feature-copy {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lab-feature-copy p {
  color: rgba(248, 250, 252, 0.86);
  font-size: 0.9rem;
}

.lab-tag {
  align-self: start;
  background: #fbbf24;
  color: #1e1b4b;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
}

.lab-feature h3 {
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  margin: 0;
}

.lab-perks {
  list-style: none;
  padding: 0;
  margin: 4px 0 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lab-perks li {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
}

.lab-preview {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  padding: 10px;
  min-height: 0;
}

.lab-embed {
  width: 100%;
  height: min(340px, 42vh);
  min-height: 260px;
  border: 0;
  border-radius: 14px;
  background: #0b0e14;
  display: block;
}

.lab-embed-quiz {
  background: #f5f5f5;
}

.lab-preview-hint {
  margin: 10px 4px 0;
  font-size: 0.78rem;
  color: rgba(248, 250, 252, 0.65);
  text-align: center;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  position: relative;
  z-index: 1;
}

.lab-card {
  background: var(--white);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 150px;
}

.lab-card.coming {
  outline: 2px dashed rgba(124, 58, 237, 0.35);
  background: linear-gradient(180deg, #fff, #faf5ff);
}

.lab-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.lab-card h4 {
  font-size: 1.05rem;
  margin: 0;
}

.lab-card p {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
}

.lab-card a {
  color: var(--teal-deep);
  font-weight: 600;
  text-decoration: none;
  margin-top: auto;
}

.lab-card a:hover {
  text-decoration: underline;
}

#books {
  background: linear-gradient(180deg, rgba(255, 248, 230, 0.34), rgba(238, 248, 255, 0.18));
}

#top, #apps, #namo, #nandu-lab, #books, #contact, #branches { scroll-margin-top: 84px; }

.section h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); margin-bottom: 10px; }

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 28px;
}

.section p.intro { color: var(--muted); max-width: 58ch; }

.branches {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.branch {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  min-height: 220px;
}

.branch.namo {
  background: linear-gradient(165deg, #123c39 0%, #0f6a63 55%, #c45c62 140%);
  color: var(--white);
}

.branch.namo p { color: rgba(255, 250, 243, 0.86); }

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 8px;
  opacity: 0.7;
}

.apps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: var(--white);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.card.soon { outline: 2px dashed rgba(226, 92, 26, 0.45); }

.badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--gold);
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}

.app-icon { width: 64px; height: 64px; border-radius: 16px; object-fit: cover; }

.app-icon-lab {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  line-height: 1;
  background: linear-gradient(145deg, #1e1b4b 0%, #312e81 55%, #0f766e 130%);
  box-shadow: 0 8px 20px rgba(30, 27, 75, 0.22);
}

.app-icon-quiz {
  background: linear-gradient(145deg, #46178f 0%, #6b21a8 55%, #312e81 130%);
}

.card h3 { font-size: 1.25rem; }

.card p { color: var(--muted); font-size: 0.95rem; flex: 1; }

.meta { font-size: 0.8rem; color: var(--teal-deep); font-weight: 600; }

.video-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
}

.embed {
  border: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 20px;
  background: #000;
}

.video-side {
  display: grid;
  gap: 12px;
}

.thumb {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
}

.thumb img { width: 120px; height: 86px; object-fit: cover; }

.thumb div { padding: 10px 10px 10px 0; }

.thumb h3 { font-size: 0.95rem; }

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

.kids-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 28px;
}

.kid {
  background: var(--white);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.kid h3 { margin-bottom: 6px; }

.books {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.book {
  background: var(--white);
  border-radius: 20px;
  padding: 18px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  min-height: 170px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.book p { color: var(--muted); font-size: 0.92rem; }

.book .vol {
  color: var(--saffron);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact {
  background: var(--teal-deep);
  color: var(--white);
  border-radius: 32px;
  padding: 36px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.contact p { color: rgba(255,250,243,0.82); }

.contact a { color: var(--gold); }

footer {
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

footer a { color: var(--teal-deep); }

@media (max-width: 880px) {
  .hero, .branches, .apps, .video-grid, .kids-duo, .books, .contact, .lab-projects, .lab-grid {
    grid-template-columns: 1fr;
  }
  .hero-band { padding: 12px 0 28px; }
  .hero { padding: 20px 0 8px; }

  .nav-inner {
    flex-wrap: wrap;
    align-items: center;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    order: 3;
    gap: 4px;
    margin-top: 4px;
    padding: 12px;
    border-radius: 16px;
    background: linear-gradient(180deg, #fff3c4 0%, #ffe3f1 45%, #dff6ff 100%);
    border: 2px solid rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 12px 14px;
    text-align: left;
    border-radius: 12px;
  }

  .nav-links a.btn {
    text-align: center;
    margin-top: 4px;
  }

  .section-head, .contact { flex-direction: column; align-items: start; }
  .lab-head-actions { width: 100%; }
}