/* Satyaki Das – Tuition & Software. Light, plain, readable; one gold accent shared with Clipvara. */
:root {
  --bg: #ffffff;
  --bg-soft: #f6f6f3;
  --ink: #16161a;
  --ink-2: #4a4a52;
  --ink-3: #74747c;
  --line: #e6e5e0;
  --accent: #e7a400;
  --accent-ink: #1a1400;
  --accent-soft: #fff6dc;
  --dark: #0d0d10;
  --radius: 14px;
  --max: 1080px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* header */
.site-head { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 18px; text-decoration: none; letter-spacing: -.2px; }
.brand small { display: block; font-weight: 500; font-size: 12px; color: var(--ink-3); letter-spacing: 0; margin-top: -3px; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { text-decoration: none; color: var(--ink-2); font-size: 14.5px; padding: 7px 11px; border-radius: 8px; }
.nav a:hover { background: var(--bg-soft); color: var(--ink); }
.nav a.on { color: var(--ink); background: var(--bg-soft); font-weight: 600; }

/* type */
h1 { font-size: clamp(32px, 5vw, 50px); line-height: 1.08; letter-spacing: -1.2px; margin: 0 0 16px; }
h2 { font-size: clamp(24px, 3.2vw, 32px); line-height: 1.15; letter-spacing: -.6px; margin: 0 0 12px; }
h3 { font-size: 19px; margin: 0 0 6px; letter-spacing: -.2px; }
p { margin: 0 0 14px; }
.lead { font-size: 18.5px; color: var(--ink-2); max-width: 720px; }
.eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #a07000; margin-bottom: 12px; }
.muted { color: var(--ink-3); }
.small { font-size: 14px; }

/* sections */
.hero { padding: 72px 0 56px; }
.section { padding: 56px 0; }
.section.soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section.dark { background: var(--dark); color: #f3f3f5; }
.section.dark .lead, .section.dark .muted { color: #b9b9c2; }

/* buttons */
.btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px;
  border-radius: 10px; font-weight: 600; font-size: 15.5px; text-decoration: none; border: 1px solid var(--line);
  background: #fff; color: var(--ink); }
.btn:hover { border-color: #cfcdc5; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: #d99a00; }
.section.dark .btn { background: transparent; color: #fff; border-color: #3a3a42; }
.section.dark .btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* cards and grids */
.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; background: #fff; }
.card.link { text-decoration: none; display: block; transition: border-color .15s, transform .15s; }
.card.link:hover { border-color: #cfcdc5; transform: translateY(-2px); }
.card .tag { display: inline-block; font-size: 12px; font-weight: 700; color: #8a6200; background: var(--accent-soft);
  border-radius: 999px; padding: 3px 10px; margin-bottom: 12px; }
.card ul { margin: 10px 0 0; padding-left: 20px; color: var(--ink-2); }
.card li { margin: 4px 0; }
.card .more { display: inline-block; margin-top: 14px; font-weight: 600; color: #8a6200; }

/* product */
.product-hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; }
.app-icon { width: 72px; height: 72px; margin-bottom: 14px; }
.shot { border-radius: 12px; border: 1px solid #2a2a30; box-shadow: 0 24px 60px rgba(0,0,0,.35); }
.shot.light { border-color: var(--line); box-shadow: 0 16px 40px rgba(20,20,30,.12); }
.feature h3 { font-size: 17px; }
.feature p { color: var(--ink-2); font-size: 15px; margin: 0; }

/* price box */
.price-box { border: 2px solid var(--accent); border-radius: 18px; padding: 28px; background: #fff; max-width: 460px; }
.price { font-size: 44px; font-weight: 800; letter-spacing: -1px; line-height: 1; }
.price small { font-size: 16px; font-weight: 600; color: var(--ink-3); letter-spacing: 0; }
.checks { list-style: none; padding: 0; margin: 18px 0 0; }
.checks li { padding-left: 28px; position: relative; margin: 8px 0; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 4px; top: 7px; width: 12px; height: 7px; border-left: 2.5px solid #2e9e5b;
  border-bottom: 2.5px solid #2e9e5b; transform: rotate(-45deg); }

/* steps */
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.steps li { counter-increment: s; padding: 16px 18px 16px 58px; position: relative; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 15px; width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent-soft); color: #8a6200; font-weight: 700; display: grid; place-items: center; font-size: 14px; }

/* tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--bg-soft); font-weight: 600; }
tr:last-child td { border-bottom: 0; }

/* policy pages */
.doc { max-width: 760px; padding: 56px 0 72px; }
.doc h1 { font-size: clamp(30px, 4.4vw, 40px); }
.doc h2 { font-size: 21px; margin: 32px 0 8px; letter-spacing: -.2px; }
.doc p, .doc li { color: var(--ink-2); }
.doc ul { padding-left: 22px; }
.doc .updated { color: var(--ink-3); font-size: 14px; margin-bottom: 28px; }
.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 12px 16px; border-radius: 0 10px 10px 0; color: #4a3a00; }

/* footer */
.site-foot { border-top: 1px solid var(--line); padding: 36px 0 44px; font-size: 14px; color: var(--ink-3); }
.site-foot .cols { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-foot a { color: var(--ink-2); text-decoration: none; }
.site-foot a:hover { color: var(--ink); text-decoration: underline; }
.site-foot .links { display: flex; gap: 6px 18px; flex-wrap: wrap; }

@media (max-width: 820px) {
  .grid.two, .grid.three, .product-hero { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 36px; }
  .section { padding: 44px 0; }
  .site-head .wrap { padding-top: 10px; padding-bottom: 10px; }
  .nav a { padding: 6px 8px; font-size: 14px; }
}