/* ==========================================================================
   qcfinancial landing page
   Design tokens, layout, and interactions per design/landing-spec.md
   ========================================================================== */

:root {
  /* Text */
  --ink: #0b1b34;
  --body: #475677;
  --body-2: #516183;
  --muted: #44567a;
  --muted-2: #67768f;
  --muted-3: #8593aa;
  --col-head: #93a0b6;

  /* Brand / navy */
  --navy: #0c2a66;
  --navy-hover: #0a224f;
  --navy-deep-a: #081a40;
  --navy-deep-b: #0a2257;
  --navy-deep-c: #0a1f4d;
  --workflow-navy: #0b2454;
  --workflow-card: #102e63;
  --workflow-card-border: #1d4486;
  --logo-navy: #0b1d42;
  --cream: #f5f1e6;

  /* Teal accents */
  --teal: #22d3c5;
  --teal-dark: #0e8f8a;
  --teal-dark-2: #0e7c77;
  --teal-light: #5ce0d4;
  --teal-lighter: #7ef0e4;
  --teal-mean: #8af3e7;

  /* Surfaces & borders */
  --bg: #ffffff;
  --strip: #fafbfd;
  --border: #e7ecf4;
  --border-soft: #eef1f7;
  --border-pill: #d7deea;
  --icon-chip: #eef4ff;

  /* Chips */
  --chip-navy-bg: #eaf0fb;
  --chip-navy-border: #d7e3f7;
  --chip-teal-bg: #e7f6f4;
  --chip-teal-border: #c9ece8;

  --maxw: 1200px;
  --pad-x: 32px;

  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --font-serif: 'STIX Two Text', Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

a { text-decoration: none; color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }

/* ---------- Keyframes ---------- */
@keyframes qcFade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes qcMC { from { opacity: 0; } to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

/* ==========================================================================
   NAV
   ========================================================================== */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 16px var(--pad-x);
  display: flex; align-items: center; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 11px; line-height: 1; }
.logo-chip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 11px; background: var(--logo-navy);
  box-shadow: 0 8px 20px -10px rgba(11, 29, 66, 0.55);
}
.logo-chip img { width: 22px; height: 22px; display: block; }
.wordmark {
  font-family: var(--font-serif); font-style: italic; font-weight: 500;
  font-size: 22px; color: var(--logo-navy); line-height: 1; white-space: nowrap;
}

.nav-spacer { flex: 1; }
.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-menu { display: flex; gap: 26px; align-items: center; font-size: 14.5px; color: var(--muted); font-weight: 500; }
.nav-link { padding: 4px 0; transition: color 0.15s; }
.nav-link:hover { color: var(--navy); }

.lang-toggle {
  display: flex; border: 1px solid var(--border-pill); border-radius: 8px;
  overflow: hidden; font-family: var(--font-mono); font-size: 12px; font-weight: 600;
}
.lang-toggle button {
  border: none; padding: 6px 11px; cursor: pointer;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  background: #fff; color: #7585a0; transition: background 0.15s, color 0.15s;
}
.lang-toggle button[aria-pressed="true"] { background: var(--navy); color: #fff; }

.btn-github {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--navy); color: #fff; font-size: 14px; font-weight: 500;
  padding: 9px 16px; border-radius: 9px; transition: background 0.15s;
}
.btn-github:hover { background: var(--navy-hover); }

/* Mobile nav */
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; border: 1px solid var(--border-pill);
  border-radius: 9px; background: #fff; cursor: pointer; color: var(--navy);
}
.mobile-drawer { display: none; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-deep-a) 0%, var(--navy) 52%, var(--navy-deep-b) 100%);
}
.mc-bg { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(8,21,56,0.94) 0%, rgba(8,21,56,0.78) 42%, rgba(8,21,56,0.32) 70%, rgba(8,21,56,0.08) 100%);
}
.mc-caption {
  position: absolute; bottom: 24px; right: 30px;
  display: flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 11px; color: #9fbbe8;
  background: rgba(10,28,72,0.45); border: 1px solid rgba(122,240,228,0.22);
  padding: 6px 12px; border-radius: 999px; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.mc-caption .bar { width: 18px; height: 2px; background: var(--teal-mean); display: inline-block; border-radius: 2px; }

.hero-inner { position: relative; max-width: var(--maxw); margin: 0 auto; padding: 110px var(--pad-x) 118px; }
.hero-content { max-width: 624px; animation: qcFade 0.7s ease both; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: 0.5px;
  color: var(--teal-lighter); background: rgba(34,211,197,0.12);
  border: 1px solid rgba(34,211,197,0.32); padding: 6px 12px; border-radius: 999px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); display: inline-block; }

.hero-title {
  font-size: 56px; line-height: 1.04; letter-spacing: -1.7px; font-weight: 600;
  margin: 22px 0 0; color: #fff; text-wrap: balance;
}
.hero-sub {
  font-size: 19px; line-height: 1.55; color: #c1d4f1; margin: 24px 0 0;
  max-width: 528px; text-wrap: pretty;
}
.cta-row { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 9px;
  background: #fff; color: var(--navy); font-size: 15.5px; font-weight: 600;
  padding: 13px 22px; border-radius: 11px; transition: background 0.15s, transform 0.15s;
}
.btn-primary:hover { background: #eaf0fb; transform: translateY(-1px); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 9px;
  background: rgba(255,255,255,0.06); color: #fff; font-size: 15.5px; font-weight: 500;
  padding: 13px 22px; border-radius: 11px; border: 1px solid rgba(255,255,255,0.28);
  transition: background 0.15s, border-color 0.15s;
}
.btn-secondary:hover { border-color: #fff; background: rgba(255,255,255,0.12); }

/* Install pill (hero variant is default) */
.install-pill {
  margin-top: 30px; display: inline-flex; align-items: center;
  border: 1px solid rgba(255,255,255,0.18); border-radius: 10px; overflow: hidden;
  background: rgba(255,255,255,0.05);
}
.install-pill .cmd { font-family: var(--font-mono); font-size: 14px; color: #e6eefb; padding: 11px 16px; }
.install-pill .cmd .sigil { color: var(--teal-lighter); }
.copy-btn {
  border: none; border-left: 1px solid rgba(255,255,255,0.18); background: rgba(255,255,255,0.08);
  padding: 11px 14px; cursor: pointer; color: #cfe0ff;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; transition: background 0.15s, color 0.15s;
}
.copy-btn:hover { background: rgba(255,255,255,0.16); color: #fff; }

/* ==========================================================================
   TRUST STRIP
   ========================================================================== */
.trust { border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); background: var(--strip); }
.trust-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 22px var(--pad-x);
  display: flex; flex-wrap: wrap; gap: 14px 48px; align-items: center; justify-content: center;
}
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); font-weight: 500; }

/* ==========================================================================
   SECTION HEADERS (shared)
   ========================================================================== */
.section { max-width: var(--maxw); margin: 0 auto; }
.section-head { max-width: 640px; }
.eyebrow-mono {
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase;
}
.eyebrow-mono.light-accent { color: var(--teal-dark); }
.eyebrow-mono.dark-accent { color: var(--teal-light); }
.section-title { font-size: 38px; line-height: 1.1; letter-spacing: -1px; font-weight: 600; margin: 14px 0 0; color: var(--ink); }
.section-title.on-dark { color: #fff; }
.section-sub { font-size: 17.5px; line-height: 1.55; color: var(--body); margin: 16px 0 0; }
.section-sub.on-dark { color: #aac0e6; }

/* ==========================================================================
   FEATURES
   ========================================================================== */
#features { padding: 96px var(--pad-x) 40px; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 44px; }
.card {
  border: 1px solid var(--border); border-radius: 18px; padding: 30px; background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.card:hover { border-color: #c5d2e8; box-shadow: 0 18px 40px -26px rgba(12,42,102,0.3); transform: translateY(-2px); }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--icon-chip);
  display: flex; align-items: center; justify-content: center; color: var(--navy);
}
.card h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.3px; margin: 18px 0 0; color: var(--ink); }
.card p { font-size: 15.5px; line-height: 1.6; color: var(--body-2); margin: 10px 0 0; }

/* ==========================================================================
   WORKFLOW
   ========================================================================== */
.workflow { background: var(--workflow-navy); margin-top: 60px; }
.workflow .wrap { padding-top: 84px; padding-bottom: 84px; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.step { background: var(--workflow-card); border: 1px solid var(--workflow-card-border); border-radius: 16px; padding: 24px; }
.step-num { font-family: var(--font-mono); font-size: 12px; color: var(--teal-light); font-weight: 600; }
.step h3 { font-size: 17.5px; font-weight: 600; color: #fff; margin: 14px 0 0; letter-spacing: -0.2px; }
.step p { font-size: 14px; line-height: 1.55; color: #9fb6df; margin: 8px 0 0; }

/* ==========================================================================
   MARKETS
   ========================================================================== */
#markets { padding: 96px var(--pad-x); }
.market-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 44px; }
.market-card {
  border: 1px solid var(--border); border-radius: 20px; padding: 32px;
  background: linear-gradient(180deg, #fbfcfe 0%, #f5f8fc 100%);
}
.market-head { display: flex; align-items: center; gap: 12px; }
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 28px; border-radius: 6px; color: #fff;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
}
.badge.cl { background: var(--navy); }
.badge.g10 { background: var(--teal-dark); }
.market-card h3 { font-size: 21px; font-weight: 600; letter-spacing: -0.3px; color: var(--ink); margin: 0; }
.market-card p { font-size: 15px; line-height: 1.6; color: var(--body-2); margin: 14px 0 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font-family: var(--font-mono); font-size: 12.5px; padding: 6px 11px; border-radius: 7px; }
.chip.navy { color: var(--navy); background: var(--chip-navy-bg); border: 1px solid var(--chip-navy-border); }
.chip.teal { color: var(--teal-dark-2); background: var(--chip-teal-bg); border: 1px solid var(--chip-teal-border); }

/* ==========================================================================
   INSTALL CTA
   ========================================================================== */
.cta-section { max-width: var(--maxw); margin: 0 auto 96px; padding: 0 var(--pad-x); }
.cta-panel {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep-c) 100%);
  border-radius: 26px; padding: 64px 56px; text-align: center;
}
.cta-texture {
  position: absolute; inset: 0; opacity: 0.5;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.07) 1px, transparent 0);
  background-size: 26px 26px;
}
.cta-inner { position: relative; }
.cta-inner h2 { font-size: 38px; line-height: 1.1; letter-spacing: -1px; font-weight: 600; color: #fff; margin: 0; }
.cta-inner > p { font-size: 18px; line-height: 1.55; color: #aac0e6; margin: 16px auto 0; max-width: 520px; }

/* CTA install pill variant */
.install-pill.cta {
  margin-top: 30px; border: 1px solid #2a4d8f; background: #0a2150; border-radius: 12px;
}
.install-pill.cta .cmd { font-size: 16px; color: #e7eefb; padding: 15px 22px; }
.install-pill.cta .cmd .sigil { color: var(--teal-light); }
.install-pill.cta .copy-btn { border-left: 1px solid #2a4d8f; background: #11337a; padding: 15px 18px; color: #cfe0ff; }
.install-pill.cta .copy-btn:hover { background: #16409a; }

.cta-btns { display: flex; gap: 14px; justify-content: center; margin-top: 28px; flex-wrap: wrap; }
.cta-btns .btn-light { background: #fff; color: var(--navy); font-size: 15.5px; font-weight: 500; padding: 13px 24px; border-radius: 11px; transition: background 0.15s; }
.cta-btns .btn-light:hover { background: #eef3fb; }
.cta-btns .btn-outline { background: transparent; color: #fff; font-size: 15.5px; font-weight: 500; padding: 13px 24px; border-radius: 11px; border: 1px solid #3a5da0; transition: border-color 0.15s; }
.cta-btns .btn-outline:hover { border-color: #fff; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer { border-top: 1px solid var(--border-soft); background: var(--strip); }
.footer-top {
  max-width: var(--maxw); margin: 0 auto; padding: 56px var(--pad-x) 36px;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px;
}
.footer-brand .brand { gap: 10px; }
.footer-brand .logo-chip { width: 36px; height: 36px; border-radius: 10px; box-shadow: none; }
.footer-brand .logo-chip img { width: 20px; height: 20px; }
.footer-brand .wordmark { font-size: 20px; }
.footer-tag { font-size: 14px; line-height: 1.6; color: var(--muted-2); margin: 16px 0 0; max-width: 280px; }
.footer-social { display: flex; gap: 12px; margin-top: 18px; }
.footer-social a { color: var(--muted-2); transition: color 0.15s; }
.footer-social a:hover { color: var(--navy); }
.footer-col-head { font-size: 12.5px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; color: var(--col-head); }
.footer-links { display: flex; flex-direction: column; gap: 11px; margin-top: 16px; font-size: 14.5px; }
.footer-links a { color: var(--body-2); transition: color 0.15s; }
.footer-links a:hover { color: var(--navy); }
.footer-project { margin-top: 16px; display: flex; align-items: center; gap: 9px; }
.q-chip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 7px; background: var(--ink); color: #fff;
  font-family: var(--font-mono); font-weight: 600; font-size: 12px;
}
.footer-project span:last-child { font-size: 14.5px; color: var(--body-2); }
.footer-bottom { border-top: 1px solid var(--border-soft); }
.footer-bottom-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 20px var(--pad-x);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: var(--muted-3);
}
.footer-bottom-inner .made { font-family: var(--font-mono); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero-title { font-size: 44px; letter-spacing: -1.2px; }
}

@media (max-width: 820px) {
  /* Switch to mobile nav */
  .nav-menu, .nav-right .lang-toggle, .nav-right .btn-github { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-inner { gap: 16px; }

  .mobile-drawer[data-open="true"] {
    display: block; border-top: 1px solid var(--border);
    background: rgba(255,255,255,0.97); backdrop-filter: saturate(160%) blur(12px);
  }
  .mobile-drawer .drawer-inner {
    max-width: var(--maxw); margin: 0 auto; padding: 18px var(--pad-x) 24px;
    display: flex; flex-direction: column; gap: 18px;
  }
  .mobile-drawer .drawer-links { display: flex; flex-direction: column; gap: 14px; font-size: 16px; font-weight: 500; color: var(--muted); }
  .mobile-drawer .drawer-row { display: flex; align-items: center; gap: 14px; }
}

@media (max-width: 760px) {
  .feature-grid { grid-template-columns: 1fr; }
  .market-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  #features { padding-top: 72px; }
  #markets { padding: 72px var(--pad-x); }
  .hero-inner { padding: 80px var(--pad-x) 88px; }
  .cta-panel { padding: 48px 28px; }
}

@media (max-width: 560px) {
  :root { --pad-x: 20px; }
  .step-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .hero-title { font-size: 36px; letter-spacing: -1px; }
  .hero-sub { font-size: 17px; }
  .section-title, .cta-inner h2 { font-size: 30px; }
  .mc-caption { display: none; }
  .install-pill { width: 100%; }
  .install-pill .cmd { flex: 1; }
}