/* DokanSathi landing — one stylesheet, no build step. Colours are tokens; dark mode redefines them. */
:root {
  --bg: #F8F9FA;
  --surface: #FFFFFF;
  --surface-alt: #EEF3FB;
  --text: #0F172A;
  --text-dim: #475569;
  --border: #DCE3EC;
  --primary: #0F6CBD;
  --primary-hover: #0F5FA7;
  --primary-soft: #E1EDF8;
  --on-primary: #FFFFFF;
  --ok: #15803D;
  --ok-soft: #DCFCE7;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .08);
  --radius: 14px;
  --wrap: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1420;
    --surface: #161E2D;
    --surface-alt: #121A28;
    --text: #E6EBF2;
    --text-dim: #A3AFC2;
    --border: #2A3548;
    --primary: #4FA3EC;
    --primary-hover: #7CBBF2;
    --primary-soft: #16304A;
    --on-primary: #0B1220;
    --ok: #4ADE80;
    --ok-soft: #173424;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0E1420; --surface: #161E2D; --surface-alt: #121A28; --text: #E6EBF2; --text-dim: #A3AFC2;
  --border: #2A3548; --primary: #4FA3EC; --primary-hover: #7CBBF2; --primary-soft: #16304A;
  --on-primary: #0B1220; --ok: #4ADE80; --ok-soft: #173424; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hind Siliguri", "Noto Sans Bengali", "Nirmala UI", system-ui, sans-serif;
  font-size: 18px;
  line-height: 1.7;
}
img { max-width: 100%; height: auto; }
a { color: var(--primary); }
h1, h2, h3 { line-height: 1.3; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 760px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 6px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-row { display: flex; align-items: center; gap: 24px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.2rem; }
.brand img { border-radius: 9px; }
.brand.small { font-size: 1rem; }
.nav { display: flex; gap: 20px; margin-left: auto; }
.nav a { color: var(--text-dim); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; font: inherit; font-weight: 600; text-decoration: none;
  padding: 10px 18px; border: 1.5px solid transparent; cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn-sm { padding: 6px 14px; font-size: .95rem; }
.btn-lg { padding: 13px 22px; font-size: 1.05rem; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-light { background: #FFFFFF; color: #0F5FA7; }
.btn-light:hover { background: #E1EDF8; }
.btn-outline-light { color: #FFFFFF; border-color: rgba(255, 255, 255, .7); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 8px 0 20px; }
.cta-row.center { justify-content: center; }

/* Hero */
.hero { padding: 56px 0 48px; }
.hero-grid { display: block; }
.hero-copy { max-width: 820px; }
.eyebrow { color: var(--primary); font-weight: 600; margin-bottom: 8px; }
.hero h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); letter-spacing: -.01em; }
.accent { color: var(--primary); }
.lead { font-size: 1.15rem; color: var(--text-dim); max-width: 38em; }
.trust { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--text-dim); font-size: .98rem; }
.trust li::before { content: "✓"; color: var(--ok); font-weight: 700; margin-right: 6px; }

/* App screenshots, in a light window frame */
.shot { margin: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.shot-bar { display: flex; align-items: center; gap: 6px; padding: 9px 14px; border-bottom: 1px solid var(--border); background: var(--surface-alt); }
.shot-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.shot-bar em { font-style: normal; font-weight: 600; margin-left: 8px; font-size: .9rem; color: var(--text-dim); }
.shot-link { display: block; cursor: zoom-in; }
.shot img { display: block; width: 100%; height: auto; background: #F8F9FA; }
.shot figcaption { padding: 10px 16px 12px; font-size: .92rem; color: var(--text-dim); border-top: 1px solid var(--border); }
.shot figcaption strong { color: var(--text); }
.shot-hero { margin-top: 36px; }
.screens { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--surface-alt); }
.section-title { font-size: clamp(1.5rem, 3vw, 2.1rem); text-align: center; }
.section-title.left { text-align: left; }
.section-sub { text-align: center; color: var(--text-dim); margin: -4px auto 32px; max-width: 40em; }
.note { color: var(--text-dim); font-size: .95rem; margin-top: 20px; }
.note.center { text-align: center; }

.problems { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.problem { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.problem-q { font-weight: 700; font-size: 1.12rem; color: var(--text); }
.problem p:last-child { color: var(--text-dim); margin: 0; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; }
.feature h3 { font-size: 1.12rem; color: var(--primary); }
.feature p { margin: 0; color: var(--text-dim); font-size: 1rem; }

.chips { list-style: none; padding: 0; margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; max-width: 860px; }
.chips li { background: var(--primary-soft); color: var(--text); border-radius: 999px; padding: 6px 16px; font-weight: 500; }
#who .note { text-align: center; }

.data-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.data-grid p { color: var(--text-dim); }
.checks { list-style: none; margin: 0; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.checks li { padding: 8px 0 8px 30px; position: relative; }
.checks li + li { border-top: 1px dashed var(--border); }
.checks li::before { content: "✓"; position: absolute; left: 4px; color: var(--ok); font-weight: 700; }

.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.step-n { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: var(--on-primary); font-weight: 700; margin-bottom: 10px; }
.steps h3 { font-size: 1.12rem; }
.steps p { margin: 0; color: var(--text-dim); }

.price-card { max-width: 640px; margin: 24px auto 0; background: var(--surface); border: 2px solid var(--primary); border-radius: var(--radius); padding: 28px; text-align: center; box-shadow: var(--shadow); }
.price-card p { color: var(--text-dim); }
.badge { display: inline-block; background: var(--primary-soft); color: var(--primary) !important; font-weight: 700; border-radius: 999px; padding: 4px 14px; font-size: .9rem; }

details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 14px 18px; font-weight: 600; list-style: none; position: relative; padding-right: 44px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--primary); }
details[open] summary::after { content: "−"; }
details p { padding: 0 18px 14px; margin: 0; color: var(--text-dim); }

.final-cta { background: linear-gradient(135deg, #1678D3, #0F5FA7); color: #FFFFFF; text-align: center; padding: 64px 0; }
.final-cta h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.final-cta p { opacity: .9; }

.site-footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.footer-row nav { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-row nav a { color: var(--text-dim); text-decoration: none; }
.footer-row nav a:hover { color: var(--primary); }
.copy { margin: 0 0 0 auto; color: var(--text-dim); font-size: .95rem; }

.mobile-bar { display: none; }

/* Prose pages (privacy) */
.prose { padding: 48px 0 64px; }
.prose h1 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
.prose h2 { font-size: 1.3rem; margin-top: 1.8em; }
.prose p, .prose li { color: var(--text-dim); }
.prose .updated { font-size: .95rem; }

/* Responsive */
@media (max-width: 960px) {
  .data-grid, .screens { grid-template-columns: 1fr; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .problems, .steps { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 17px; padding-bottom: 72px; }
  .nav { display: none; }
  .header-cta { margin-left: auto; }
  .hero { padding: 32px 0 36px; }
  .section { padding: 48px 0; }
  .features { grid-template-columns: 1fr; }
  .cta-row .btn { flex: 1 1 100%; }
  .copy { margin-left: 0; }
  .mobile-bar {
    display: flex; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: var(--surface); border-top: 1px solid var(--border);
  }
  .mobile-bar .btn { flex: 1; }
}

.center-page { text-align: center; }
.round-icon { border-radius: 16px; }