/* ============================================================
   AISTI — GST Compliance Platform
   Design system & global styles
   Palette derived from logo: deep navy + green accent
   ============================================================ */

:root {
  /* Brand */
  --navy: #16283a;
  --navy-900: #0f1c29;
  --navy-800: #1c2e40;
  --navy-700: #294056;
  --green: #1fa050;
  --green-600: #178c44;
  --green-700: #127038;
  --green-050: #eaf7ef;
  --green-100: #d3efdd;

  /* Neutrals */
  --ink: #16283a;
  --body: #46586a;
  --muted: #6b7c8c;
  --line: #e4eaef;
  --line-soft: #eef2f5;
  --bg: #ffffff;
  --bg-soft: #f5f8fa;
  --bg-tint: #f0f6f3;

  /* System */
  --radius: 14px;
  --radius-lg: 22px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(16, 40, 58, .06), 0 2px 8px rgba(16, 40, 58, .05);
  --shadow: 0 10px 30px rgba(16, 40, 58, .09);
  --shadow-lg: 0 24px 60px rgba(16, 40, 58, .14);
  --maxw: 1180px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--body);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.18; font-weight: 800; letter-spacing: -.02em; }

/* Layout helpers */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.center { text-align: center; }
.tint { background: var(--bg-soft); }
.grid { display: grid; gap: 28px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--green-600); background: var(--green-050);
  border: 1px solid var(--green-100); padding: 6px 14px; border-radius: 999px;
}
.section-head { max-width: 640px; margin: 0 auto 56px; }
.section-head.left { margin-left: 0; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); margin: 18px 0 14px; }
.section-head p { font-size: 17px; color: var(--muted); }
.lead { font-size: 18px; color: var(--muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 15px; padding: 13px 24px;
  border-radius: 10px; cursor: pointer; border: 1px solid transparent;
  transition: transform .15s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 8px 20px rgba(31,160,80,.25); }
.btn-primary:hover { background: var(--green-600); }
.btn-dark { background: var(--navy-800); color: #fff; }
.btn-dark:hover { background: var(--navy-900); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--navy-700); }
.btn-lg { padding: 16px 30px; font-size: 16px; }
.btn-light { background: rgba(255,255,255,.12); color:#fff; border-color: rgba(255,255,255,.25); }
.btn-light:hover { background: rgba(255,255,255,.2); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 32px; height: 74px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 30px; width: auto; }
.brand-name { font-weight: 800; font-size: 20px; color: var(--navy); letter-spacing: -.03em; }
.nav-links { display: flex; align-items: center; gap: 6px; margin-left: 8px; }
.nav-links a {
  font-size: 14.5px; font-weight: 600; color: var(--body);
  padding: 9px 14px; border-radius: 8px; transition: color .15s, background .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--navy); background: var(--bg-soft); }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px 0; border-radius: 2px; transition: .25s; }

/* ============================================================
   HERO (split, left aligned — distinct layout)
   ============================================================ */
.hero { position: relative; padding: 84px 0 90px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(680px 360px at 88% -6%, rgba(31,160,80,.10), transparent 60%),
    radial-gradient(560px 320px at -6% 108%, rgba(22,40,58,.06), transparent 60%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; position: relative; }
.hero h1 { font-size: clamp(36px, 5vw, 58px); line-height: 1.06; letter-spacing: -.035em; }
.hero h1 .accent { color: var(--green); }
.hero p.lead { margin: 22px 0 30px; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 26px; margin-top: 34px; flex-wrap: wrap; }
.hero-trust div { }
.hero-trust b { display: block; font-size: 26px; color: var(--navy); font-weight: 800; letter-spacing: -.02em; }
.hero-trust span { font-size: 12.5px; color: var(--muted); font-weight: 600; }

/* Hero visual — dashboard-ish card, unique framing */
.hero-visual { position: relative; }
.panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 22px;
}
.panel-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--line-soft); }
.panel-top .dot-row { display: flex; gap: 6px; }
.panel-top .dot-row i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.panel-top .tag { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.recon-row { display: flex; align-items: center; justify-content: space-between; padding: 13px 14px; border: 1px solid var(--line-soft); border-radius: 11px; margin-top: 12px; background: var(--bg-soft); }
.recon-row .l { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 700; color: var(--navy); }
.recon-row .ic { width: 30px; height: 30px; border-radius: 8px; background: var(--green-050); color: var(--green-600); display: grid; place-items: center; }
.pill { font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.pill.ok { background: var(--green-050); color: var(--green-700); }
.pill.warn { background: #fff4e5; color: #b46a12; }
.recon-meter { margin-top: 16px; }
.recon-meter .lbl { display: flex; justify-content: space-between; font-size: 12px; font-weight: 700; color: var(--body); margin-bottom: 7px; }
.bar { height: 9px; border-radius: 999px; background: var(--line); overflow: hidden; }
.bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--green), var(--green-600)); border-radius: 999px; }
.float-badge {
  position: absolute; bottom: -18px; left: -18px; background: var(--navy-800); color: #fff;
  border-radius: 14px; padding: 14px 18px; box-shadow: var(--shadow-lg); display: flex; gap: 12px; align-items: center;
}
.float-badge .big { font-size: 22px; font-weight: 800; color: var(--green); line-height: 1; }
.float-badge small { font-size: 11px; color: #b7c4d0; text-transform: uppercase; letter-spacing: .08em; }

/* ============================================================
   LOGO STRIP
   ============================================================ */
.logostrip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; padding: 30px 0; }
.logostrip p { text-align: center; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 20px; }
.logostrip ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; }
.logostrip li { font-weight: 800; color: #93a3b1; font-size: 17px; letter-spacing: -.01em; display: flex; align-items: center; gap: 8px; }
.logostrip li svg { color: var(--green); }

/* ============================================================
   FEATURE ROWS (alternating — distinct layout)
   ============================================================ */
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.frow + .frow { margin-top: 96px; }
.frow.rev .frow-media { order: -1; }
.frow-text h3 { font-size: 28px; margin: 16px 0 14px; }
.frow-text p { color: var(--muted); font-size: 16.5px; }
.checklist { margin-top: 22px; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 11px; font-size: 15px; font-weight: 600; color: var(--navy); }
.checklist .tick { flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%; background: var(--green-050); color: var(--green-600); display: grid; place-items: center; margin-top: 1px; }
.frow-media .card-stack { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); }

/* mini rows inside media */
.mini { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; }
.mini + .mini { margin-top: 12px; }
.mini .name { font-size: 13.5px; font-weight: 700; color: var(--navy); display: flex; align-items: center; gap: 10px; }
.mini .ic { width: 32px; height: 32px; border-radius: 9px; background: var(--bg-tint); color: var(--green-600); display: grid; place-items: center; }

/* ============================================================
   FEATURE ICON CARDS
   ============================================================ */
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.fcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s;
}
.fcard:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #d7e0e7; }
.fcard .ic {
  width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center;
  background: var(--navy-800); color: #fff; margin-bottom: 20px;
}
.fcard h3 { font-size: 19px; margin-bottom: 10px; }
.fcard p { font-size: 14.5px; color: var(--muted); }

/* ============================================================
   TIMELINE (how it works — distinct vertical layout)
   ============================================================ */
.timeline { max-width: 760px; margin: 0 auto; position: relative; }
.timeline::before { content: ""; position: absolute; left: 27px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(var(--green), var(--line)); }
.tstep { display: grid; grid-template-columns: 56px 1fr; gap: 24px; position: relative; }
.tstep + .tstep { margin-top: 40px; }
.tstep .num {
  width: 56px; height: 56px; border-radius: 16px; background: #fff; border: 2px solid var(--green);
  color: var(--green-600); font-weight: 800; font-size: 20px; display: grid; place-items: center; position: relative; z-index: 2;
}
.tstep h3 { font-size: 20px; margin-bottom: 7px; }
.tstep p { color: var(--muted); font-size: 15.5px; }

/* ============================================================
   STATS BAND (green, not dark — distinct)
   ============================================================ */
.stats { background: linear-gradient(120deg, var(--navy-900), var(--navy-700)); color: #fff; }
.stats .grid { grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 10px; }
.stat b { display: block; font-size: 46px; font-weight: 800; color: #fff; letter-spacing: -.03em; }
.stat b .u { color: var(--green); }
.stat span { font-size: 13.5px; color: #aebccb; font-weight: 600; }

/* ============================================================
   PRICING
   ============================================================ */
.price-grid { grid-template-columns: repeat(3, 1fr); align-items: stretch; }
.price {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px 30px; display: flex; flex-direction: column;
}
.price.feat { border-color: var(--green); box-shadow: 0 20px 44px rgba(31,160,80,.16); position: relative; }
.price.feat .ribbon { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--green); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 5px 14px; border-radius: 999px; }
.price h3 { font-size: 18px; }
.price .desc { font-size: 13.5px; color: var(--muted); margin: 6px 0 20px; min-height: 40px; }
.price .amt { font-size: 44px; font-weight: 800; color: var(--navy); letter-spacing: -.03em; }
.price .amt small { font-size: 15px; font-weight: 600; color: var(--muted); }
.price .plist { margin: 24px 0 28px; display: grid; gap: 12px; }
.price .plist li { display: flex; gap: 10px; font-size: 14px; color: var(--body); }
.price .plist .tick { color: var(--green-600); flex: 0 0 auto; }
.price .btn { width: 100%; justify-content: center; margin-top: auto; }

/* ============================================================
   COMPARISON / TABLE
   ============================================================ */
.ctable { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.ctable th, .ctable td { padding: 16px 20px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line-soft); }
.ctable thead th { background: var(--bg-soft); color: var(--navy); font-weight: 700; }
.ctable td.c { text-align: center; }
.ctable .yes { color: var(--green-600); font-weight: 700; }
.ctable .no { color: #c2ccd4; }
.ctable tr:last-child td { border-bottom: none; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { max-width: 800px; margin: 0 auto; display: grid; gap: 14px; }
.qa { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.qa button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; background: none; border: none; cursor: pointer; text-align: left; font-size: 16px; font-weight: 700; color: var(--navy); font-family: inherit; }
.qa .ans { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.qa .ans p { padding: 0 24px 22px; color: var(--muted); font-size: 15px; }
.qa.open .ans { max-height: 320px; }
.qa .chev { transition: transform .3s ease; color: var(--green-600); flex: 0 0 auto; }
.qa.open .chev { transform: rotate(45deg); }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta {
  background: linear-gradient(120deg, var(--navy-900), var(--navy-700));
  color: #fff; border-radius: var(--radius-lg); padding: 60px 48px; text-align: center;
  position: relative; overflow: hidden;
}
.cta::after { content: ""; position: absolute; top: -40%; right: -10%; width: 420px; height: 420px; background: radial-gradient(circle, rgba(31,160,80,.28), transparent 65%); }
.cta h2 { color: #fff; font-size: clamp(26px, 3.4vw, 38px); position: relative; }
.cta p { color: #b9c6d3; margin: 14px auto 28px; max-width: 560px; position: relative; }
.cta .hero-actions { justify-content: center; position: relative; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid { grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.info-card + .info-card { margin-top: 18px; }
.info-card .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--green-050); color: var(--green-600); display: grid; place-items: center; margin-bottom: 14px; }
.info-card h4 { font-size: 16px; margin-bottom: 6px; }
.info-card p, .info-card a { font-size: 14.5px; color: var(--muted); }
.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; font-weight: 700; color: var(--navy); margin-bottom: 7px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px;
  font-family: inherit; font-size: 15px; color: var(--ink); background: #fff; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(31,160,80,.14); }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 8px; }

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero { padding: 70px 0 56px; background: var(--bg-soft); border-bottom: 1px solid var(--line); text-align: center; }
.page-hero h1 { font-size: clamp(32px, 4.5vw, 50px); }
.page-hero p { max-width: 620px; margin: 16px auto 0; font-size: 18px; color: var(--muted); }

/* Prose (legal pages) */
.prose { max-width: 820px; margin: 0 auto; }
.prose h2 { font-size: 24px; margin: 40px 0 12px; }
.prose h3 { font-size: 18px; margin: 26px 0 8px; }
.prose p, .prose li { color: var(--body); font-size: 15.5px; margin-bottom: 12px; }
.prose ul { list-style: disc; padding-left: 22px; }
.prose ul li { margin-bottom: 8px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--navy-900); color: #b7c4d0; padding: 72px 0 34px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.foot-brand .brand-name { color: #fff; }
.foot-brand p { font-size: 14px; color: #8ea0b0; margin: 16px 0 20px; max-width: 320px; }
.foot-brand img { height: 30px; filter: brightness(0) invert(1); opacity: .95; }
.foot-col h5 { color: #fff; font-size: 13px; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 18px; font-weight: 700; }
.foot-col a { display: block; font-size: 14.5px; color: #9fb0be; padding: 6px 0; transition: color .15s; }
.foot-col a:hover { color: var(--green); }
.foot-bottom { border-top: 1px solid rgba(255,255,255,.09); margin-top: 52px; padding-top: 26px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.foot-bottom p { font-size: 13.5px; color: #8093a2; }
.foot-social { display: flex; gap: 12px; }
.foot-social a { width: 36px; height: 36px; border-radius: 9px; background: rgba(255,255,255,.06); display: grid; place-items: center; color: #b7c4d0; transition: background .15s, color .15s; }
.foot-social a:hover { background: var(--green); color: #fff; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .hero-grid, .frow, .contact-grid { grid-template-columns: 1fr; }
  .frow.rev .frow-media { order: 0; }
  .cards-3, .cards-4, .price-grid, .stats .grid { grid-template-columns: repeat(2, 1fr); }
  .hero-visual { max-width: 520px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .nav-links { display: none; }
  .nav-cta { gap: 8px; }
  .nav-cta .btn { padding: 9px 14px; font-size: 13.5px; }
  .nav-toggle { display: block; }
  .nav-links.open { display: flex; position: absolute; top: 74px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); padding: 12px 24px 20px; gap: 2px; box-shadow: var(--shadow); }
  .nav-links.open a { padding: 12px 10px; }
}
@media (max-width: 560px) {
  .cards-3, .cards-4, .price-grid, .stats .grid, .foot-grid { grid-template-columns: 1fr; }
  .cta { padding: 44px 24px; }
  .hero-actions .btn { flex: 1; justify-content: center; }
}

/* util */
.mt-0 { margin-top: 0; }
.fade-up { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.in { opacity: 1; transform: none; }

/* ============================================================
   DEMO PAGE (distinct dark split layout)
   ============================================================ */
.demo-hero { background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%); color: #fff; padding: 70px 0 84px; position: relative; overflow: hidden; }
.demo-hero::before { content: ""; position: absolute; top: -20%; right: -8%; width: 560px; height: 560px; background: radial-gradient(circle, rgba(31,160,80,.22), transparent 62%); pointer-events: none; }
.demo-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; position: relative; z-index: 2; }
.demo-pitch h1 { color: #fff; font-size: clamp(32px, 4.4vw, 50px); line-height: 1.08; margin: 20px 0 16px; }
.demo-pitch > p { color: #b9c6d3; font-size: 17px; max-width: 520px; }
.demo-getlist { margin: 28px 0 32px; display: grid; gap: 13px; }
.demo-getlist li { display: flex; align-items: center; gap: 12px; font-size: 15.5px; font-weight: 600; color: #e6edf3; }
.demo-getlist .dg-ic { flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%; background: rgba(31,160,80,.18); color: #5fd98c; display: grid; place-items: center; }
.demo-quote { border-left: 3px solid var(--green); padding: 4px 0 4px 18px; }
.demo-quote p { color: #cdd8e2; font-size: 15px; font-style: italic; margin-bottom: 12px; }
.dq-by { display: flex; align-items: center; gap: 12px; }
.dq-av { width: 40px; height: 40px; border-radius: 50%; background: var(--green); color: #fff; font-weight: 800; font-size: 14px; display: grid; place-items: center; }
.dq-by b { display: block; color: #fff; font-size: 14px; }
.dq-by small { color: #93a3b1; font-size: 12.5px; }

.demo-formcard { background: #fff; border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-lg); }
.dfc-head { margin-bottom: 22px; }
.dfc-head h2 { font-size: 24px; }
.dfc-head p { font-size: 13.5px; color: var(--muted); margin-top: 6px; }
.drow { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

@media (max-width: 960px) {
  .demo-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 560px) {
  .drow { grid-template-columns: 1fr; }
}

/* ============================================================
   PRODUCT PAGE — big SaaS additions
   ============================================================ */
.prod-hero { padding: 78px 0 64px; background: var(--bg-soft); border-bottom: 1px solid var(--line); text-align: center; position: relative; overflow: hidden; }
.prod-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 50% -10%, rgba(31,160,80,.10), transparent 60%); pointer-events: none; }
.prod-hero .inner { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; }
.prod-hero h1 { font-size: clamp(34px, 5vw, 56px); margin: 18px 0 16px; }
.prod-hero p { font-size: 18px; color: var(--muted); max-width: 600px; margin: 0 auto 28px; }
.prod-hero .hero-actions { justify-content: center; }
.prod-metrics { display: flex; flex-wrap: wrap; justify-content: center; gap: 40px; margin-top: 40px; }
.prod-metrics div { text-align: center; }
.prod-metrics b { display: block; font-size: 30px; font-weight: 800; color: var(--navy); letter-spacing: -.02em; }
.prod-metrics span { font-size: 12.5px; color: var(--muted); font-weight: 600; }

/* module nav pills */
.module-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 8px; }
.module-nav a { font-size: 13.5px; font-weight: 700; color: var(--navy); background: #fff; border: 1px solid var(--line); padding: 9px 16px; border-radius: 999px; transition: all .15s; }
.module-nav a:hover { border-color: var(--green); color: var(--green-600); }

/* big feature grid */
.bigfeat { grid-template-columns: repeat(3, 1fr); }
.bfcard { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.bfcard:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d7e0e7; }
.bfcard .ic { width: 44px; height: 44px; border-radius: 11px; background: var(--green-050); color: var(--green-600); display: grid; place-items: center; margin-bottom: 16px; }
.bfcard h4 { font-size: 16.5px; margin-bottom: 7px; }
.bfcard p { font-size: 14px; color: var(--muted); }

/* module section block */
.module { padding: 84px 0; border-top: 1px solid var(--line); scroll-margin-top: 90px; }
.module-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--green-600); }
.module-badge .n { width: 26px; height: 26px; border-radius: 8px; background: var(--navy-800); color: #fff; display: grid; place-items: center; font-size: 12px; }

/* security band */
.secband { background: var(--navy-900); color: #fff; }
.secband .grid { grid-template-columns: repeat(4, 1fr); }
.secitem { text-align: center; padding: 10px; }
.secitem .ic { width: 48px; height: 48px; border-radius: 13px; background: rgba(255,255,255,.06); color: #5fd98c; display: grid; place-items: center; margin: 0 auto 14px; }
.secitem h4 { color: #fff; font-size: 15px; margin-bottom: 6px; }
.secitem p { color: #97a7b5; font-size: 13px; }

@media (max-width: 960px) {
  .bigfeat { grid-template-columns: repeat(2, 1fr); }
  .secband .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .bigfeat { grid-template-columns: 1fr; }
  .secband .grid { grid-template-columns: 1fr; }
  .prod-metrics { gap: 26px; }
}

/* ============================================================
   SIGNUP PAGE
   ============================================================ */
.signup-flow { display: grid; gap: 22px; }
.sflow-step { display: grid; grid-template-columns: 48px 1fr; gap: 18px; align-items: start; }
.sflow-step .sf-num { width: 48px; height: 48px; border-radius: 14px; background: var(--navy-800); color: #fff; font-weight: 800; font-size: 18px; display: grid; place-items: center; }
.sflow-step h4 { font-size: 17px; margin-bottom: 4px; }
.sflow-step p { font-size: 14.5px; color: var(--muted); }