@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&display=swap');

:root {
  --lesson-ink: #10233f;
  --lesson-ink-soft: #40516a;
  --lesson-ink-faint: #6c788b;
  --lesson-paper: #ffffff;
  --lesson-canvas: #f5f7f9;
  --lesson-mist: #e9eef2;
  --checkpoint: #f39a32;
  --checkpoint-soft: #fff3e3;
  --mastery: #087f64;
  --mastery-dark: #066650;
  --mastery-soft: #e3f4ef;
  --night-field: #0b2846;
  --danger-soft: #fff0ed;
  --line: rgba(16, 35, 63, .11);
  --line-soft: rgba(16, 35, 63, .07);
  --focus: #f39a32;
  --shadow-card: 0 14px 40px rgba(15, 35, 63, .08);
  --shadow-small: 0 7px 22px rgba(15, 35, 63, .07);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --space: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: clip; background: var(--lesson-paper); color: var(--lesson-ink); font-family: "Hind Siliguri", system-ui, sans-serif; font-size: 17px; line-height: 1.65; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -.02em; }
h1 { margin-bottom: 24px; font-size: clamp(2.65rem, 6vw, 5.25rem); font-weight: 700; }
h1 em { color: var(--mastery); font-style: normal; }
h2 { margin-bottom: 16px; font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { margin-bottom: 10px; font-size: 1.28rem; }
p { color: var(--lesson-ink-soft); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.section-pad { padding: 104px 0; }
.section-muted { background: var(--lesson-canvas); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 16px; background: var(--night-field); color: white; border-radius: var(--radius-sm); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.eyebrow { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; color: var(--mastery); font-size: .82rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.eyebrow span { color: var(--checkpoint); }
.eyebrow.light { color: #9ee4d2; }

.site-header { position: sticky; z-index: 100; top: 0; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line-soft); backdrop-filter: blur(14px); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 78px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand > span:last-child { display: grid; }
.brand strong { font-size: 1.12rem; line-height: 1.05; }
.brand small { margin-top: 4px; color: var(--lesson-ink-faint); font-size: .68rem; line-height: 1; }
.brand-mark { position: relative; display: grid; width: 40px; height: 40px; place-items: center; overflow: hidden; background: var(--night-field); border-radius: 12px; }
.brand-mark::before { width: 17px; height: 11px; border-top: 4px solid #fff; border-right: 4px solid #fff; content: ""; transform: rotate(-45deg); }
.brand-mark span { position: absolute; right: 6px; bottom: 6px; width: 13px; height: 4px; background: var(--checkpoint); border-radius: 9px; }
.main-nav { display: flex; align-items: center; gap: 28px; color: var(--lesson-ink-soft); font-size: .96rem; font-weight: 600; }
.main-nav a:not(.nav-action):hover { color: var(--mastery); }
.nav-action { padding: 10px 16px; background: var(--mastery-soft); color: var(--mastery-dark); border-radius: 999px; }
.nav-action:hover { background: #d3eee7; }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; background: transparent; border: 0; }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--lesson-ink); border-radius: 4px; }

.hero { overflow: hidden; padding-top: 88px; background: linear-gradient(180deg, #f4faf8 0, #fff 74%); }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 88px; align-items: center; }
.lead { max-width: 650px; margin-bottom: 30px; font-size: 1.2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 20px; padding: 12px 20px; border: 1px solid transparent; border-radius: 12px; font-weight: 700; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--mastery); color: #fff; box-shadow: var(--shadow-small); }
.button-primary:hover { background: var(--mastery-dark); }
.button-quiet { background: #fff; border-color: var(--line); color: var(--lesson-ink); }
.trust-list { display: flex; flex-wrap: wrap; gap: 22px; margin: 28px 0 0; padding: 0; color: var(--lesson-ink-faint); font-size: .88rem; list-style: none; }
.trust-list span { display: inline-grid; width: 19px; height: 19px; margin-right: 4px; place-items: center; background: var(--mastery-soft); color: var(--mastery); border-radius: 50%; font-size: .7rem; }
.hero-board { position: relative; padding: 30px; background: var(--lesson-paper); border: 1px solid var(--line-soft); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.hero-board::before { position: absolute; z-index: -1; right: -25px; bottom: -25px; width: 85%; height: 85%; background-image: radial-gradient(rgba(8,127,100,.18) 1.3px, transparent 1.3px); background-size: 14px 14px; content: ""; }
.board-top, .progress-meta, .next-step { display: flex; align-items: center; justify-content: space-between; }
.board-top > div { display: grid; }
.tiny-label { color: var(--lesson-ink-faint); font-size: .75rem; }
.board-top strong { font-size: 1.35rem; }
.streak { padding: 6px 11px; background: var(--checkpoint-soft); color: #96520d; border-radius: 999px; font-size: .8rem; font-weight: 700; }
.progress-meta { margin-top: 28px; font-size: .78rem; }
.progress-meta span { color: var(--lesson-ink-faint); }
.progress-track { height: 7px; margin-top: 8px; overflow: hidden; background: var(--lesson-mist); border-radius: 99px; }
.progress-track span { display: block; height: 100%; background: var(--mastery); border-radius: inherit; transition: width .35s ease; }
.quest-list { margin: 24px 0; padding: 0; list-style: none; }
.quest-list li { display: grid; grid-template-columns: 42px 1fr auto; gap: 13px; align-items: center; margin-top: 9px; padding: 13px; border: 1px solid transparent; border-radius: 13px; }
.quest-list li.is-current { background: var(--mastery-soft); border-color: rgba(8,127,100,.1); }
.quest-icon { display: grid; width: 40px; height: 40px; place-items: center; background: var(--lesson-canvas); color: var(--lesson-ink-soft); border-radius: 11px; font-weight: 700; }
.is-current .quest-icon { background: var(--mastery); color: #fff; }
.quest-list div { display: grid; }
.quest-list strong { font-size: .92rem; }
.quest-list small { color: var(--lesson-ink-faint); font-size: .75rem; }
.quest-status { padding: 4px 8px; background: #fff; color: var(--mastery); border-radius: 7px; font-size: .67rem; font-weight: 700; }
.quest-lock { color: #9ca7b5; }
.next-step { gap: 12px; padding: 14px; background: var(--night-field); color: #fff; border-radius: 14px; }
.next-step div { display: grid; margin-right: auto; }
.next-step small, .next-step > span:last-child { color: #b8cad8; font-size: .72rem; }
.badge-star { display: grid; width: 34px; height: 34px; place-items: center; background: var(--checkpoint); color: var(--night-field); border-radius: 50%; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 38px; }
.section-head > p { max-width: 440px; margin-bottom: 8px; }
.section-head h2 { margin-bottom: 0; }
.module-grid { display: grid; grid-template-columns: 1.12fr 1fr 1fr; gap: 18px; }
.module-card { position: relative; display: flex; min-height: 360px; flex-direction: column; padding: 27px; background: var(--lesson-paper); border-radius: var(--radius-md); box-shadow: var(--shadow-small); }
.module-card.featured { background: var(--night-field); color: #fff; }
.module-card.featured p, .module-card.featured li { color: #c6d3df; }
.module-number { margin-bottom: 40px; color: var(--lesson-ink-faint); font-size: 2.2rem; font-weight: 700; opacity: .28; }
.featured .module-number { color: #fff; }
.difficulty { position: absolute; top: 28px; right: 27px; padding: 5px 10px; border-radius: 999px; font-size: .7rem; font-weight: 700; }
.difficulty.easy { background: var(--mastery-soft); color: var(--mastery-dark); }
.difficulty.medium { background: var(--checkpoint-soft); color: #8c4f11; }
.mini-checks { display: grid; gap: 6px; margin: 4px 0 20px; padding-left: 20px; font-size: .86rem; }
.skill-meter { display: flex; justify-content: space-between; margin: auto 0 18px; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--lesson-ink-faint); font-size: .8rem; }
.skill-meter strong { color: var(--lesson-ink); }
.complete-check { display: flex; align-items: center; gap: 9px; margin-top: auto; cursor: pointer; color: var(--lesson-ink-soft); font-size: .84rem; font-weight: 600; }
.featured .complete-check { color: #dce5ed; }
.complete-check input { width: 19px; height: 19px; accent-color: var(--mastery); }

.split-feature { display: grid; grid-template-columns: .93fr 1.07fr; gap: 80px; align-items: center; }
.image-frame { position: relative; }
.image-frame img, .training-figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.image-note { position: absolute; right: 22px; bottom: 22px; display: grid; padding: 12px 16px; background: rgba(255,255,255,.94); border-radius: 12px; box-shadow: var(--shadow-small); font-size: .75rem; }
.image-note b { color: var(--mastery); font-size: .9rem; }
.settings-list { display: grid; margin-top: 26px; }
.settings-list article { display: grid; grid-template-columns: 42px 1fr auto; gap: 14px; align-items: start; padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.setting-icon { display: grid; width: 40px; height: 40px; place-items: center; background: var(--mastery-soft); color: var(--mastery); border-radius: 11px; font-weight: 700; }
.settings-list h3 { margin: 0 0 3px; font-size: 1.05rem; }
.settings-list p { margin: 0; font-size: .88rem; }
.tag { margin-top: 3px; padding: 4px 8px; background: var(--lesson-canvas); color: var(--lesson-ink-faint); border-radius: 7px; font-size: .67rem; font-weight: 600; }
.tip-box { margin-top: 22px; padding: 17px 19px; background: var(--checkpoint-soft); border-radius: 14px; }
.tip-box strong { color: #8a4d10; }
.tip-box p { margin: 3px 0 0; color: #725335; font-size: .87rem; }

.genre-section { background: var(--night-field); color: #fff; }
.genre-section .section-head p { color: #b8cad8; }
.genre-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.genre-grid article { padding: 25px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius-md); }
.genre-grid article > span { display: inline-block; margin-bottom: 30px; font-size: 1.7rem; }
.genre-grid h3 { margin-bottom: 8px; }
.genre-grid p { margin-bottom: 18px; color: #b8cad8; font-size: .88rem; }
.genre-grid small { color: #83d5c1; }

.plan-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.plan-intro { position: sticky; top: 110px; }
.training-figure { margin: 32px 0 0; }
.training-figure img { aspect-ratio: 16 / 10; border-radius: var(--radius-md); }
.training-figure figcaption { margin-top: 12px; color: var(--lesson-ink-faint); font-size: .8rem; }
.training-figure figcaption span { color: var(--mastery); font-weight: 700; }
.day-list { margin: 0; padding: 0; list-style: none; }
.day-list li { display: grid; grid-template-columns: 48px 1fr auto; gap: 17px; align-items: center; margin-bottom: 10px; padding: 17px 19px; background: var(--lesson-paper); border-radius: 14px; box-shadow: 0 5px 18px rgba(15,35,63,.05); }
.day-list li > span { display: grid; width: 42px; height: 42px; place-items: center; background: var(--lesson-canvas); color: var(--lesson-ink-soft); border-radius: 50%; font-weight: 700; }
.day-list strong { font-size: .98rem; }
.day-list p { margin: 2px 0 0; font-size: .82rem; }
.day-list em { color: var(--lesson-ink-faint); font-size: .75rem; font-style: normal; }
.day-list .final-day { background: var(--mastery); color: #fff; }
.day-list .final-day > span { background: rgba(255,255,255,.17); color: #fff; }
.day-list .final-day p, .day-list .final-day em { color: #d8f1eb; }

.team-panel { display: grid; grid-template-columns: 1fr 1.05fr; overflow: hidden; background: var(--night-field); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); }
.team-copy { padding: 55px; color: #fff; }
.team-copy p { color: #bdcbd7; }
.callout-example { display: grid; gap: 6px; margin-top: 32px; padding: 16px; background: rgba(255,255,255,.07); border-radius: 13px; }
.callout-example span { color: #83d5c1; font-size: .72rem; font-weight: 700; }
.callout-example q { font-size: 1rem; }
.comm-list { display: grid; gap: 1px; margin: 0; padding: 24px; background: rgba(255,255,255,.05); list-style: none; }
.comm-list li { display: grid; grid-template-columns: 40px 1fr; gap: 15px; align-items: center; padding: 22px; background: rgba(255,255,255,.05); }
.comm-list li:first-child { border-radius: 14px 14px 0 0; }
.comm-list li:last-child { border-radius: 0 0 14px 14px; }
.comm-list span { display: grid; width: 36px; height: 36px; place-items: center; background: var(--checkpoint); color: var(--night-field); border-radius: 10px; font-weight: 700; }
.comm-list strong { color: #fff; }
.comm-list p { margin: 2px 0 0; color: #b8cad8; font-size: .84rem; }

.safety-section { background: #f4faf8; }
.safety-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.safety-grid article { display: flex; min-height: 290px; flex-direction: column; padding: 24px; background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-small); }
.safety-icon { display: grid; width: 44px; height: 44px; margin-bottom: 30px; place-items: center; background: var(--mastery-soft); color: var(--mastery); border-radius: 13px; font-size: 1.25rem; font-weight: 700; }
.safety-grid p { font-size: .87rem; }
.safety-grid article > strong { margin-top: auto; color: var(--mastery); font-size: .75rem; }
.guardian-note { display: flex; gap: 14px; align-items: center; margin-top: 20px; padding: 18px 22px; background: var(--danger-soft); border-radius: 14px; }
.guardian-note > span { display: grid; flex: 0 0 auto; width: 34px; height: 34px; place-items: center; background: #d85c45; color: #fff; border-radius: 50%; font-weight: 700; }
.guardian-note p { margin: 0; color: #74463d; font-size: .88rem; }

.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0; cursor: pointer; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--mastery); font-size: 1.4rem; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { padding-right: 45px; padding-bottom: 20px; font-size: .9rem; }

.site-footer { padding-top: 64px; background: #071d33; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr; gap: 60px; padding-bottom: 54px; }
.footer-grid > div:not(:first-child) { display: grid; align-content: start; gap: 9px; }
.footer-grid > div:not(:first-child) strong { margin-bottom: 7px; color: #9ee4d2; }
.footer-grid a:not(.brand) { color: #b4c4d1; font-size: .86rem; }
.footer-grid a:not(.brand):hover { color: #fff; }
.footer-brand small, .footer-grid p { color: #93a8b9; }
.footer-grid p { margin-top: 17px; font-size: .86rem; }
.footer-bottom { display: flex; justify-content: space-between; padding-block: 18px; border-top: 1px solid rgba(255,255,255,.08); color: #8198aa; font-size: .75rem; }

.legal-hero { padding: 78px 0 48px; background: #f4faf8; }
.legal-hero .container { max-width: 820px; }
.breadcrumbs { display: flex; gap: 8px; margin-bottom: 22px; color: var(--lesson-ink-faint); font-size: .82rem; }
.breadcrumbs a { color: var(--mastery); }
.legal-hero h1 { margin-bottom: 18px; font-size: clamp(2.3rem, 5vw, 4rem); }
.legal-hero p { max-width: 680px; }
.legal-meta { display: inline-block; margin-top: 12px; padding: 6px 11px; background: #fff; border-radius: 999px; color: var(--lesson-ink-faint); font-size: .75rem; }
.legal-content { display: grid; grid-template-columns: 220px 1fr; gap: 70px; max-width: 980px; }
.legal-toc { position: sticky; top: 110px; align-self: start; padding: 18px; background: var(--lesson-canvas); border-radius: 14px; }
.legal-toc strong { display: block; margin-bottom: 10px; }
.legal-toc a { display: block; padding: 6px 0; color: var(--lesson-ink-soft); font-size: .82rem; }
.legal-toc a:hover { color: var(--mastery); }
.legal-copy section { scroll-margin-top: 110px; margin-bottom: 42px; }
.legal-copy h2 { font-size: 1.55rem; }
.legal-copy h3 { font-size: 1.1rem; }
.legal-copy p, .legal-copy li { font-size: .95rem; }
.legal-copy li { margin-bottom: 7px; color: var(--lesson-ink-soft); }
.legal-note { padding: 18px; background: var(--checkpoint-soft); border-radius: 14px; }

@media (max-width: 980px) {
  .section-pad { padding: 80px 0; }
  .hero-grid, .split-feature, .plan-layout, .faq-layout { grid-template-columns: 1fr; gap: 48px; }
  .hero-copy { max-width: 760px; }
  .hero-board { max-width: 680px; }
  .module-grid { grid-template-columns: 1fr 1fr; }
  .module-card.featured { grid-column: 1 / -1; min-height: auto; }
  .genre-grid, .safety-grid { grid-template-columns: 1fr 1fr; }
  .plan-intro { position: static; }
  .training-figure { max-width: 620px; }
  .team-copy { padding: 40px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .container { width: min(100% - 28px, 1180px); }
  .section-pad { padding: 66px 0; }
  .nav-wrap { min-height: 68px; }
  .nav-toggle { display: block; }
  .main-nav { position: absolute; top: 68px; right: 14px; left: 14px; display: none; align-items: stretch; gap: 0; padding: 12px; background: #fff; border: 1px solid var(--line); border-radius: 15px; box-shadow: var(--shadow-card); }
  .main-nav.is-open { display: grid; }
  .main-nav a { padding: 11px 12px; }
  .nav-action { margin-top: 4px; text-align: center; }
  .hero { padding-top: 58px; }
  .hero-grid { gap: 42px; }
  h1 { overflow-wrap: anywhere; font-size: clamp(2.35rem, 10.5vw, 3.1rem); }
  .hero-board { width: 100%; min-width: 0; padding: 20px; }
  .section-head { display: block; margin-bottom: 28px; }
  .section-head > p { margin-top: 14px; }
  .module-grid, .genre-grid, .safety-grid { grid-template-columns: 1fr; }
  .module-card.featured { grid-column: auto; }
  .split-feature { gap: 42px; }
  .settings-list article { grid-template-columns: 42px 1fr; }
  .settings-list .tag { grid-column: 2; justify-self: start; }
  .team-panel { grid-template-columns: 1fr; }
  .team-copy { padding: 30px 24px; }
  .comm-list { padding: 12px; }
  .day-list li { grid-template-columns: 43px 1fr; }
  .day-list em { grid-column: 2; }
  .guardian-note { align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px 28px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-bottom { display: grid; gap: 5px; }
  .legal-content { grid-template-columns: 1fr; gap: 35px; }
  .legal-toc { position: static; }
}

@media (max-width: 460px) {
  .hero-actions .button { width: 100%; }
  .trust-list { display: grid; gap: 8px; }
  .board-top { align-items: start; }
  .quest-list li { grid-template-columns: 40px 1fr; }
  .quest-status, .quest-lock { grid-column: 2; justify-self: start; }
  .image-note { right: 12px; bottom: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}