/* Layout concept: an exercise-book page. Ruled lines and a red margin rule in the hero,
   school-register style tables for policies, two product "covers" side by side. */
:root {
  --ink: #1B2A4A;          /* navy, from the owl and the school posters */
  --ink-soft: #4A5772;
  --muted: #66728C;
  --paper: #FFFFFF;
  --paper-2: #F4F6FA;      /* cool, navy-tinted off-white */
  --rule: #DCE3EE;         /* exercise-book ruling */
  --margin: #E8836F;       /* the red margin line */
  --saffron: #6C4CE8;      /* violet: Nitya Abhyas learning app (new owl logo) */
  --saffron-soft: #EFEBFF;
  --leaf: #1E8A5E;         /* fee green: School Fee Manager */
  --leaf-soft: #E1F2EA;
  --due: #C8463C;

  --font-display: "Baloo 2", "Mukta", system-ui, sans-serif;
  --font-body: "Mukta", system-ui, -apple-system, "Segoe UI", sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: 2.1rem;
  --step-4: clamp(2.3rem, 5vw + 1rem, 3.6rem);

  --radius: 14px;
  --max: 1160px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--saffron); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; margin: 0; text-wrap: balance; font-weight: 700; }
h1 { font-size: var(--step-4); letter-spacing: -0.01em; font-weight: 800; }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }
p { margin: 0; }

.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.section { padding-block: clamp(56px, 8vw, 96px); }
.section.tint { background: var(--paper-2); }
.stack { display: grid; gap: 16px; }
.lead { font-size: var(--step-1); color: var(--ink-soft); max-width: 60ch; }
.eyebrow {
  font-size: var(--step--1); font-weight: 700; text-transform: uppercase; letter-spacing: 0.09em;
  color: var(--muted);
}
.section-head { display: grid; gap: 12px; margin-bottom: 40px; max-width: 720px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font: 600 var(--step-0)/1 var(--font-body);
  padding: 14px 22px; border-radius: 999px; text-decoration: none;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #24375F; }
.btn-ghost { border-color: var(--rule); color: var(--ink); background: var(--paper); }
.btn-ghost:hover { border-color: var(--ink-soft); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Header ---------- */
body::before {
  content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px);
  z-index: 10; background: var(--paper);
}
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 9;
  background: rgba(255,255,255,.94); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap { display: flex; align-items: center; gap: 24px; min-height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.brand img { width: 40px; height: 40px; border-radius: 11px; }
.brand span { font: 800 1.45rem/1 var(--font-display); letter-spacing: -0.01em; padding-top: 4px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { text-decoration: none; padding: 8px 12px; border-radius: 8px; font-weight: 500; color: var(--ink-soft); }
.nav a:hover { color: var(--ink); background: var(--paper-2); }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 700; }
.nav .btn { margin-left: 8px; padding: 10px 18px; color: #fff; }
.nav .btn:hover { background: #24375F; color: #fff; }
.menu-toggle {
  display: none; background: none; border: 1px solid var(--rule); border-radius: 10px;
  width: 44px; height: 44px; align-items: center; justify-content: center; cursor: pointer; color: var(--ink);
}
@media (max-width: 860px) {
  .menu-toggle { display: inline-flex; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: var(--paper); border-bottom: 1px solid var(--rule); gap: 0;
    padding: 8px max(16px, env(safe-area-inset-right, 0px)) 16px max(16px, env(safe-area-inset-left, 0px));
  }
  .nav:not(.open) { display: none; }
  .nav a { padding: 12px; }
  .nav .btn { margin: 8px 0 0; }
}

/* ---------- Hero: exercise-book page ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    linear-gradient(90deg, transparent 0 calc(max(16px, (100% - var(--max)) / 2) - 18px), var(--margin) 0 calc(max(16px, (100% - var(--max)) / 2) - 16px), transparent 0),
    repeating-linear-gradient(180deg, transparent 0 35px, var(--rule) 35px 36px),
    var(--paper);
}
.hero .wrap {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: center;
  padding-block: clamp(48px, 7vw, 88px);
}
.hero-copy { display: grid; gap: 22px; min-width: 0; }
.hero h1 .hi { display: block; color: var(--saffron); }
.hero .lead { color: var(--ink-soft); }
.proof {
  display: flex; align-items: center; gap: 12px; padding-top: 6px;
  font-size: var(--step--1); color: var(--muted);
}
.proof strong { color: var(--ink); font-weight: 600; }
.proof .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--leaf); flex: none; box-shadow: 0 0 0 4px var(--leaf-soft); }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } }

/* ---------- Phone mockups ---------- */
.phones { position: relative; display: flex; justify-content: center; gap: 0; min-height: 440px; }
.phone {
  width: 236px; flex: none; background: var(--ink); border-radius: 34px; padding: 9px;
  box-shadow: 0 30px 60px -20px rgba(27,42,74,.45);
}
.phone .screen { background: #fff; border-radius: 26px; overflow: hidden; height: 100%; display: flex; flex-direction: column; font-size: 12px; line-height: 1.35; }
.phones .phone { position: relative; }
.phones .phone:first-child { transform: rotate(-4deg) translateY(16px); margin-right: -24px; z-index: 2; }
.phones .phone:last-child { transform: rotate(4deg) translateY(-8px); z-index: 1; }
.phones .caption { position: absolute; bottom: -30px; left: 0; right: 0; text-align: center; font-size: 12px; color: var(--muted); }
@media (max-width: 520px) {
  .phone { width: 184px; }
  .phones .phone:first-child { margin-right: -36px; }
}
.app-bar { padding: 14px 14px 10px; display: flex; align-items: center; justify-content: space-between; }
.app-bar b { font: 700 15px/1 var(--font-display); }
.app-bar small { color: var(--muted); font-size: 10px; }
.fee .app-bar { background: var(--leaf); color: #fff; }
.fee .app-bar small { color: #CFEADD; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 10px; }
.tile { background: var(--paper-2); border-radius: 10px; padding: 7px 6px; }
.tile span { display: block; font-size: 9px; color: var(--muted); }
.tile b { font: 700 14px/1.2 var(--font-display); font-variant-numeric: tabular-nums; }
.tile.ok b { color: var(--leaf); }
.tile.due b { color: var(--due); }
.mini-head { padding: 4px 12px 2px; font-weight: 700; font-size: 11px; }
.bars { padding: 4px 12px 8px; display: grid; gap: 7px; }
.bar-row { display: grid; grid-template-columns: 44px 1fr 38px; align-items: center; gap: 6px; font-size: 10px; font-variant-numeric: tabular-nums; }
.bar-row i { display: block; height: 9px; border-radius: 5px; background: #F2B8B2; }
.bar-row i.hot { background: var(--due); }
.bar-row em { font-style: normal; text-align: right; font-weight: 600; }
.receipt { margin: 4px 10px 12px; border: 1px dashed var(--rule); border-radius: 10px; padding: 8px 10px; display: grid; gap: 3px; }
.receipt .r { display: flex; justify-content: space-between; font-variant-numeric: tabular-nums; }
.pill { display: inline-block; border-radius: 99px; padding: 2px 8px; font-size: 9px; font-weight: 700; }
.pill.paid { background: var(--leaf-soft); color: var(--leaf); }
.pill.wa { background: #E3F7E9; color: #128C4A; }

.learn .app-bar { background: var(--saffron-soft); }
.streak { display: flex; gap: 5px; align-items: center; padding: 8px 14px 4px; font-size: 10px; color: var(--muted); }
.streak i { width: 16px; height: 16px; border-radius: 50%; background: var(--saffron); display: block; }
.streak i.off { background: var(--rule); }
.coin { display: inline-flex; align-items: center; gap: 4px; font-weight: 700; font-size: 12px; }
.coin::before { content: ""; width: 13px; height: 13px; border-radius: 50%; background: #F5B935; box-shadow: inset 0 0 0 2px #E09A12; }
.q-card { margin: 8px 10px; padding: 12px; border-radius: 14px; background: var(--paper-2); display: grid; gap: 10px; }
.q-card .sec { font-size: 10px; color: var(--muted); font-weight: 600; }
.q-card .q { font: 700 15px/1.3 var(--font-display); }
.frac { display: inline-flex; flex-direction: column; align-items: center; vertical-align: middle; line-height: 1; font-size: 13px; margin: 0 2px; }
.frac span:first-child { border-bottom: 1.5px solid currentColor; padding: 0 2px 1px; }
.frac span:last-child { padding-top: 1px; }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.opt { background: #fff; border: 1.5px solid var(--rule); border-radius: 10px; padding: 8px; text-align: center; font-weight: 700; }
.opt.right { border-color: var(--leaf); background: var(--leaf-soft); color: var(--leaf); }
.fb { margin: 0 10px 12px; padding: 8px 10px; border-radius: 10px; background: var(--leaf-soft); color: var(--leaf); font-weight: 600; display: flex; justify-content: space-between; }
.numline { height: 26px; position: relative; margin: 2px 4px 0; }
.numline::before { content: ""; position: absolute; left: 0; right: 0; top: 12px; height: 2px; background: var(--ink-soft); }
.numline b { position: absolute; top: 6px; width: 2px; height: 14px; background: var(--ink-soft); }
.numline b.mark { background: var(--saffron); width: 10px; height: 10px; border-radius: 50%; top: 8px; margin-left: -4px; }

/* ---------- Product cards ---------- */
.products { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 820px) { .products { grid-template-columns: 1fr; } }
.product {
  display: grid; gap: 18px; align-content: start; padding: clamp(24px, 3vw, 36px);
  border-radius: 20px; border: 1px solid var(--rule); background: var(--paper); min-width: 0;
}
.product.p-fee { border-top: 6px solid var(--leaf); }
.product.p-learn { border-top: 6px solid var(--saffron); }
.product-id { display: flex; gap: 14px; align-items: center; }
.product-id img { width: 56px; height: 56px; border-radius: 15px; flex: none; }
.product-id h3 { font-size: var(--step-2); }
.for { font-size: var(--step--1); font-weight: 600; }
.p-fee .for { color: var(--leaf); }
.p-learn .for { color: var(--saffron); }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.ticks li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; }
.ticks li::before {
  content: ""; width: 20px; height: 20px; margin-top: 3px; border-radius: 6px;
  background: var(--paper-2) no-repeat center / 12px
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6.5l2.5 2.5L10 3.5' fill='none' stroke='%231B2A4A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.product .status { font-size: var(--step--1); color: var(--muted); border-top: 1px solid var(--rule); padding-top: 14px; }
.text-link { font-weight: 700; text-decoration: none; display: inline-flex; gap: 6px; align-items: center; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- Audience row ---------- */
.people { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 820px) { .people { grid-template-columns: 1fr; } }
.person { display: grid; gap: 8px; align-content: start; padding-top: 18px; border-top: 2px solid var(--ink); }
.person .who { font: 700 var(--step-1)/1.2 var(--font-display); }
.person p { color: var(--ink-soft); }
.person .uses { font-size: var(--step--1); color: var(--muted); }

/* ---------- Reasons grid ---------- */
.reasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--rule); border-radius: 18px; overflow: hidden; background: var(--paper); }
.reason { padding: 26px; display: grid; gap: 6px; align-content: start; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.reason:nth-child(3n) { border-right: 0; }
.reason:nth-last-child(-n+3) { border-bottom: 0; }
.reason h3 { font-size: var(--step-1); }
.reason p { color: var(--ink-soft); }
.reason .big { font: 800 var(--step-2)/1 var(--font-display); color: var(--saffron); }
@media (max-width: 820px) {
  .reasons { grid-template-columns: 1fr; }
  .reason { border-right: 0; border-bottom: 1px solid var(--rule) !important; }
  .reason:last-child { border-bottom: 0 !important; }
}

/* ---------- Steps (a real sequence) ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: s; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.steps li { counter-increment: s; display: grid; gap: 8px; align-content: start; }
.steps li::before {
  content: counter(s); width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  font: 800 1.3rem/1 var(--font-display); background: var(--ink); color: #fff; padding-top: 3px;
}
.steps p { color: var(--ink-soft); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--ink); color: #fff; }
.cta-band .wrap { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; padding-block: 56px; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #C6CFE0; margin-top: 8px; }
.cta-band .btn-primary { background: var(--saffron); color: #fff; }
.cta-band .btn-primary:hover { background: #F08C55; }
.cta-band .btn-ghost { background: transparent; color: #fff; border-color: #44557A; }
.cta-band .btn-ghost:hover { border-color: #fff; }

/* ---------- Page head (inner pages) ---------- */
.page-head {
  background:
    repeating-linear-gradient(180deg, transparent 0 35px, var(--rule) 35px 36px),
    var(--paper-2);
  border-bottom: 1px solid var(--rule);
}
.page-head .wrap { padding-block: clamp(40px, 6vw, 72px); display: grid; gap: 14px; }
.page-head h1 { font-size: clamp(2rem, 4vw + 1rem, 3rem); }

/* ---------- Product detail ---------- */
.detail { display: grid; grid-template-columns: 300px 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
@media (max-width: 900px) { .detail { grid-template-columns: 1fr; } }
.detail-side { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 96px); display: grid; gap: 18px; justify-items: start; }
@media (max-width: 900px) { .detail-side { position: static; } }
.detail-side img { width: 84px; height: 84px; border-radius: 22px; }
.detail-side .phone { width: 248px; }
.facts { display: grid; gap: 0; width: 100%; border-top: 1px solid var(--rule); }
.facts div { display: grid; grid-template-columns: 96px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--rule); font-size: var(--step--1); }
.facts dt, .facts span:first-child { color: var(--muted); }
.features { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 32px; }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }
.feature { display: grid; gap: 6px; align-content: start; min-width: 0; }
.feature h3 { font-size: var(--step-1); }
.feature p { color: var(--ink-soft); }
.tag { display: inline-block; font-size: var(--step--1); font-weight: 700; border-radius: 99px; padding: 4px 12px; }
.tag.fee { background: var(--leaf-soft); color: var(--leaf); }
.tag.learn { background: var(--saffron-soft); color: #B4541E; }
.divider { height: 1px; background: var(--rule); border: 0; margin: 0; }

/* ---------- About ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; } }
.prose { display: grid; gap: 16px; max-width: 65ch; min-width: 0; }
.prose p { color: var(--ink-soft); }
.meaning {
  border-radius: 20px; padding: 32px; background: var(--saffron-soft); display: grid; gap: 10px;
}
.meaning .dev { font: 800 clamp(2.4rem, 5vw, 3.4rem)/1.1 var(--font-display); color: var(--ink); }
.meaning p { color: var(--ink-soft); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { border: 1px solid var(--rule); border-radius: 18px; padding: 26px; display: grid; gap: 10px; align-content: start; min-width: 0; }
.contact-card .label { font-size: var(--step--1); color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
.contact-card .value { font: 700 var(--step-2)/1.15 var(--font-display); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.contact-card .value.sm { font-size: var(--step-1); }
.contact-card .btn-row { margin-top: 6px; }
.contact-card .btn { padding: 10px 16px; font-size: var(--step--1); }
.contact-card.primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.contact-card.primary .label { color: #AFC0DD; }
.contact-card.primary p { color: #C6CFE0; }
.contact-card.primary .btn-primary { background: var(--saffron); }

/* ---------- Legal pages ---------- */
.legal { max-width: 760px; display: grid; gap: 14px; }
.legal h2 { font-size: var(--step-2); margin-top: 28px; }
.legal h3 { margin-top: 12px; }
.legal p, .legal li { color: var(--ink-soft); }
.legal ul { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; }
.legal .updated { font-size: var(--step--1); color: var(--muted); }
.legal strong { color: var(--ink); }
.note { border-left: 4px solid var(--saffron); background: var(--saffron-soft); padding: 14px 18px; border-radius: 0 12px 12px 0; color: var(--ink); }
.table-scroll { overflow-x: auto; border: 1px solid var(--rule); border-radius: 12px; }
.legal table { border-collapse: collapse; width: 100%; font-size: var(--step--1); }
.legal th, .legal td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.legal th { background: var(--paper-2); color: var(--ink); }
.legal tr:last-child td { border-bottom: 0; }

/* ---------- Footer ---------- */
.site-footer { background: #121D35; color: #C6CFE0; font-size: var(--step--1); }
.site-footer .wrap { padding-block: 48px 32px; display: grid; gap: 32px; }
.foot-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 820px) { .foot-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .foot-top { grid-template-columns: 1fr; } }
.foot-brand { display: grid; gap: 12px; align-content: start; }
.foot-brand .brand span { color: #fff; }
.site-footer h4 { margin: 0 0 10px; color: #fff; font: 700 var(--step-0)/1.2 var(--font-display); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer a { color: #C6CFE0; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.foot-bottom { border-top: 1px solid #2A3654; padding-top: 20px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; color: #8F9BB5; }

/* App screenshot strip (products page) */
.screen-strip { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; -webkit-overflow-scrolling: touch; }
.screen-strip img { flex: 0 0 auto; width: 220px; height: auto; border-radius: 18px; scroll-snap-align: start; box-shadow: 0 8px 22px rgba(60,36,160,.14); background: #F4F0FF; }
@media (min-width: 900px) { .screen-strip img { width: 250px; } }