/* 369 Tesla — public website (home + exam pages). Builds on app.css tokens. */
body.lp { background: #fff; font-size: 16px; }
.lp-wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; top: 8px; background: #fff; padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
.ta { font-family: "Nirmala UI", "Latha", "Noto Sans Tamil", var(--font); }

/* Header */
.lp-header { position: sticky; top: 0; z-index: 50; background: rgba(6, 13, 34, 0.86); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.lp-header-inner { display: flex; align-items: center; gap: 24px; height: 70px; }
.lp-header .brand { padding: 0; }
.lp-nav { display: flex; gap: 4px; margin-left: 8px; }
.lp-nav a { color: #c3cde6; font-weight: 600; font-size: 14px; padding: 8px 12px; border-radius: 9px; text-decoration: none; }
.lp-nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.07); }
.lp-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.lp-menu { display: none; color: #fff; }

/* Hero */
.lp-hero { position: relative; overflow: hidden; color: #dbe4ff; padding: 72px 0 84px;
  background: radial-gradient(900px 520px at 88% 12%, rgba(20, 184, 166, 0.22), transparent 60%),
              radial-gradient(760px 520px at 0% 100%, rgba(124, 58, 237, 0.26), transparent 60%),
              linear-gradient(160deg, #060d22 0%, #0b1a44 60%, #0a1633 100%); }
.lp-hero-sm { padding: 56px 0 64px; }
.lp-grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(circle at 70% 40%, #000 25%, transparent 78%); }
.lp-hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.lp-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 650; color: #99f6e4; background: rgba(20, 184, 166, 0.12); border: 1px solid rgba(45, 212, 191, 0.3); padding: 7px 14px; border-radius: 999px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal-400); box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.18); display: inline-block; animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(45, 212, 191, 0.05); } }
.lp-hero h1 { color: #fff; font-size: clamp(2rem, 4.2vw, 3.3rem); line-height: 1.08; letter-spacing: -0.035em; margin: 20px 0 18px; font-weight: 800; }
.lp-hero-sm h1 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.grad { background: linear-gradient(90deg, #5eead4, #93c5fd 45%, #c4b5fd); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lp-lead { color: #a9b6d8; font-size: 1.08rem; max-width: 600px; margin: 0 0 12px; }
.lp-lead.ta { color: #cbd5f5; font-size: 1rem; }
.lp-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.lp-btn-ghost { background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.18); color: #fff; }
.lp-btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.3); }
.lp-facts { list-style: none; padding: 0; margin: 34px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; max-width: 620px; }
.lp-facts li { border-left: 2px solid rgba(94, 234, 212, 0.4); padding-left: 12px; }
.lp-facts b { display: block; color: #fff; font-size: 1.45rem; letter-spacing: -0.02em; }
.lp-facts span { font-size: 12.5px; color: #93a3cc; line-height: 1.35; display: block; }
.lp-canvas-card { position: relative; aspect-ratio: 1 / 0.86; border-radius: 26px; overflow: hidden; background: radial-gradient(circle at 50% 40%, #13265a, #060d22 75%); border: 1px solid rgba(255, 255, 255, 0.08); box-shadow: 0 40px 90px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255,255,255,0.06); }
.lp-canvas-card canvas { width: 100%; height: 100%; display: block; cursor: grab; touch-action: pan-y; }
.lp-canvas-card canvas:active { cursor: grabbing; }
.lp-canvas-tag { position: absolute; top: 16px; left: 16px; display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 650; color: #d5def7; background: rgba(6, 13, 34, 0.6); border: 1px solid rgba(255,255,255,0.1); padding: 6px 12px; border-radius: 999px; }
.lp-canvas-legend { position: absolute; left: 16px; right: 16px; bottom: 14px; display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: #a9b6d8; }
.lp-canvas-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 3px; margin-right: 6px; }

/* Strip */
.lp-strip { background: #0a1633; border-top: 1px solid rgba(255,255,255,0.06); }
.lp-strip-inner { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; padding-top: 16px; padding-bottom: 16px; font-size: 14px; color: #93a3cc; }
.lp-strip a { color: #fff; font-weight: 650; }
.muted-2 { color: #6f7fa8; }

/* Sections */
.lp-section { padding: 88px 0; }
.lp-soft { background: #f5f7fc; }
.lp-dark { background: linear-gradient(180deg, #060d22, #0b1a44); color: #dbe4ff; }
.lp-head { max-width: 720px; margin: 0 auto 44px; text-align: center; }
.lp-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); letter-spacing: -0.03em; font-weight: 800; margin: 10px 0 12px; }
.lp-head p { color: var(--text-2); font-size: 1.05rem; margin: 0; }
.lp-head.light h2 { color: #fff; }
.lp-head.light p { color: #a9b6d8; }
.lp-kicker { display: inline-block; font-size: 12.5px; font-weight: 750; letter-spacing: 0.14em; text-transform: uppercase; color: var(--violet-600); }
.lp-dark .lp-kicker, .lp-final .lp-kicker { color: #5eead4; }

.lp-features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.lp-features article { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 26px; transition: transform .2s, box-shadow .2s; }
.lp-features article:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(15, 27, 61, 0.08); }
.lp-features .ic { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--blue-600), var(--violet-600)); margin-bottom: 16px; }
.lp-features h3 { font-size: 1.1rem; margin-bottom: 8px; }
.lp-features p { color: var(--text-2); margin: 0; font-size: 15px; }

/* Simulation playground */
.lp-sim { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 20px; align-items: stretch; }
.lp-sim-tabs { display: flex; flex-direction: column; gap: 8px; }
.lp-sim-tabs button { text-align: left; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); color: #dbe4ff; border-radius: 14px; padding: 14px 16px; cursor: pointer; font: inherit; transition: background .15s, border-color .15s; }
.lp-sim-tabs button b { display: block; font-size: 15px; color: #fff; }
.lp-sim-tabs button small { color: #8b9bc4; font-size: 12.5px; }
.lp-sim-tabs button:hover { background: rgba(255,255,255,0.08); }
.lp-sim-tabs button[aria-selected="true"] { background: linear-gradient(90deg, rgba(37,99,235,0.35), rgba(124,58,237,0.2)); border-color: rgba(147,197,253,0.4); box-shadow: inset 3px 0 0 var(--teal-400); }
.lp-sim-stage { position: relative; border-radius: 22px; overflow: hidden; background: radial-gradient(circle at 50% 35%, #13265a, #060d22 78%); border: 1px solid rgba(255,255,255,0.08); min-height: 460px; display: flex; flex-direction: column; }
.lp-sim-stage canvas { width: 100%; flex: 1; min-height: 380px; display: block; cursor: grab; touch-action: pan-y; }
.lp-sim-hud { position: absolute; top: 14px; left: 16px; right: 16px; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; pointer-events: none; }
.lp-sim-hud b { display: block; color: #fff; font-size: 16px; }
.lp-sim-hud span { color: #5eead4; font-size: 13px; font-family: var(--mono); }
.lp-sim-controls { display: flex; gap: 6px; pointer-events: auto; }
.lp-sim-controls .btn { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.14); color: #e2e8ff; }
.lp-sim-controls .btn:hover { background: rgba(255,255,255,0.16); }
.lp-sim-caption { margin: 0; padding: 14px 18px; border-top: 1px solid rgba(255,255,255,0.08); color: #a9b6d8; font-size: 14.5px; background: rgba(6,13,34,0.5); }

/* Exams */
.lp-exams { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.lp-exam { display: flex; flex-direction: column; gap: 10px; padding: 32px; border-radius: 24px; color: #dbe4ff; text-decoration: none !important; background: radial-gradient(500px 240px at 100% 0%, rgba(20,184,166,0.28), transparent 60%), linear-gradient(145deg, #0a1633, #1a2f63); transition: transform .2s, box-shadow .2s; }
.lp-exam.net { background: radial-gradient(500px 240px at 100% 0%, rgba(167,139,250,0.32), transparent 60%), linear-gradient(145deg, #0a1633, #2a2266); }
.lp-exam:hover { transform: translateY(-3px); box-shadow: 0 26px 50px rgba(10, 22, 51, 0.3); }
.lp-exam .tag { align-self: flex-start; font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: #5eead4; }
.lp-exam h3 { color: #fff; font-size: 1.5rem; letter-spacing: -0.02em; }
.lp-exam p { color: #a9b6d8; margin: 0; }
.lp-exam .more { margin-top: 8px; font-weight: 700; color: #fff; display: inline-flex; gap: 8px; align-items: center; }

/* Syllabus */
.lp-syllabus { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.lp-syllabus > div { background: #fff; border: 1px solid var(--border); border-radius: 22px; padding: 26px 28px; }
.lp-syllabus h3 { font-size: 1.15rem; margin-bottom: 14px; }
.lp-syllabus ol { margin: 0; padding: 0; list-style: none; counter-reset: u; }
.lp-syllabus li { padding: 11px 0 11px 40px; border-top: 1px solid var(--border); position: relative; counter-increment: u; }
.lp-syllabus li::before { content: counter(u); position: absolute; left: 0; top: 12px; width: 26px; height: 26px; border-radius: 8px; background: var(--blue-50); color: var(--blue-600); font-weight: 750; font-size: 12.5px; display: grid; place-items: center; }
.lp-syllabus li b { display: block; font-size: 15px; }
.lp-syllabus li span { color: var(--text-2); font-size: 14px; }
.lp-catalog { margin-top: 26px; background: #fff; border: 1px solid var(--border); border-radius: 22px; padding: 22px 26px; }
.lp-catalog h3 { margin-bottom: 12px; }
.lp-course { padding: 12px 0; border-top: 1px solid var(--border); }
.lp-course .chips { margin-top: 8px; }

/* Steps */
.lp-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: s; }
.lp-steps li { counter-increment: s; background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 24px; position: relative; }
.lp-steps li::before { content: counter(s); display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--navy-900); color: #5eead4; font-weight: 800; margin-bottom: 14px; }
.lp-steps b { display: block; font-size: 1.05rem; margin-bottom: 6px; }
.lp-steps span { color: var(--text-2); font-size: 14.5px; }

/* Tamil block */
.lp-tamil { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 40px; align-items: center; font-family: "Nirmala UI", "Latha", "Noto Sans Tamil", var(--font); }
.lp-tamil h2 { font-size: 2rem; margin: 10px 0 14px; }
.lp-tamil p { color: var(--text-2); font-size: 1.02rem; line-height: 1.8; }
.lp-tamil ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.lp-tamil li { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px 14px 44px; position: relative; line-height: 1.6; }
.lp-tamil li::before { content: "✓"; position: absolute; left: 16px; top: 13px; color: var(--teal-500); font-weight: 800; }

/* FAQ */
.lp-faq-wrap { max-width: 860px; }
.lp-faq details { border: 1px solid var(--border); border-radius: 16px; padding: 4px 22px; margin-bottom: 12px; background: #fff; }
.lp-faq summary { cursor: pointer; font-weight: 700; font-size: 1.02rem; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.lp-faq summary::-webkit-details-marker { display: none; }
.lp-faq summary::after { content: "+"; color: var(--blue-600); font-size: 1.3rem; line-height: 1; }
.lp-faq details[open] summary::after { content: "−"; }
.lp-faq p { color: var(--text-2); margin: 0 0 16px; }

/* Final CTA + footer */
.lp-final { background: radial-gradient(700px 300px at 90% 0%, rgba(20,184,166,0.25), transparent 60%), linear-gradient(135deg, #0a1633, #1a2f63); color: #dbe4ff; padding: 64px 0; }
.lp-final-inner { display: flex; justify-content: space-between; gap: 28px; align-items: center; flex-wrap: wrap; }
.lp-final h2 { color: #fff; font-size: clamp(1.4rem, 2.6vw, 2rem); letter-spacing: -0.02em; max-width: 640px; }
.lp-final p { color: #a9b6d8; margin: 10px 0 0; }
.lp-final a:not(.btn) { color: #5eead4; }
.lp-final .lp-cta { margin-top: 0; }
.lp-footer { background: #060d22; color: #93a3cc; padding: 56px 0 24px; font-size: 14px; }
.lp-footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.lp-footer .brand { padding: 0 0 12px; }
.lp-footer h3 { color: #fff; font-size: 14px; margin-bottom: 12px; }
.lp-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.lp-footer a { color: #c3cde6; }
.lp-footer p { max-width: 380px; }
.lp-copy { margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); font-size: 13px; color: #6f7fa8; }
.lp-crumbs { font-size: 13px; color: #93a3cc; }
.lp-crumbs a { color: #c3cde6; }

/* Exam unit cards */
.lp-units { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.lp-units article { border: 1px solid var(--border); border-radius: 20px; padding: 22px; background: #fff; }
.lp-units .n { font-size: 12px; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; color: var(--violet-600); }
.lp-units h3 { margin: 8px 0 8px; font-size: 1.08rem; }
.lp-units p { color: var(--text-2); margin: 0; font-size: 14.5px; }

/* Responsive */
@media (max-width: 1080px) {
  .lp-hero-inner { grid-template-columns: minmax(0, 1fr); }
  .lp-hero-visual { max-width: 620px; }
  .lp-features, .lp-units { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lp-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lp-sim { grid-template-columns: minmax(0, 1fr); }
  .lp-sim-tabs { flex-direction: row; overflow-x: auto; padding-bottom: 4px; }
  .lp-sim-tabs button { flex: 0 0 auto; min-width: 190px; }
  .lp-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .lp-nav { display: none; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; background: #060d22; padding: 10px 16px 18px; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .lp-header.open .lp-nav { display: flex; }
  .lp-menu { display: inline-grid; }
  .lp-exams, .lp-syllabus, .lp-tamil { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .lp-wrap { padding: 0 16px; }
  .lp-section { padding: 60px 0; }
  .lp-hero { padding: 44px 0 56px; }
  .lp-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lp-features, .lp-units, .lp-steps { grid-template-columns: minmax(0, 1fr); }
  .lp-footer-grid { grid-template-columns: minmax(0, 1fr); }
  .lp-actions .btn { height: 36px; padding: 0 12px; font-size: 13px; }
  .lp-sim-stage { min-height: 400px; }
  .lp-sim-stage canvas { min-height: 320px; }
  .lp-exam { padding: 24px; }
}
.lp section[id], section[id].lp-section { scroll-margin-top: 80px; }

/* Brand strip + footer initiative */
.lp-strip-brand { display: inline-flex; align-items: center; gap: 8px; color: #fff; padding-right: 14px; border-right: 1px solid rgba(255,255,255,0.12); }
.lp-strip-brand img { height: 28px; width: auto; }
.lp-strip-brand span { color: #6f7fa8; }
.lp-initiative { display: flex; align-items: center; gap: 12px; margin-top: 18px; flex-wrap: wrap; font-size: 13px; color: #93a3cc; }
.lp-initiative .kv-logo { height: 64px; width: auto; }
.lp-header .brand-logo { height: 42px; }