:root {
  --ink: #111318;
  --paper: #f7f5ef;
  --white: #ffffff;
  --muted: #656a73;
  --line: #dcd8cf;
  --panel: #ebe7dd;
  --accent: #b59447;
  --accent-dark: #8a6b27;
  --success: #315f47;
  --max: 1160px;
  --radius: 24px;
  --shadow: 0 18px 50px rgba(17, 19, 24, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247,245,239,0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(17,19,24,0.08);
}
.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 900;
  letter-spacing: -0.08em;
  font-size: 0.9rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.94rem;
  font-weight: 650;
}
.nav-links a { text-decoration: none; color: #30343b; }
.nav-links a:hover { color: #000; }
.nav-cta {
  padding: 10px 16px;
  background: var(--ink);
  color: white !important;
  border-radius: 999px;
}
.menu-button {
  display: none;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.hero { padding: 92px 0 72px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.55);
  color: #4f535b;
  font-size: 0.82rem;
  font-weight: 760;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.045em; }
h1 { font-size: clamp(3rem, 7vw, 6rem); margin: 20px 0 24px; max-width: 900px; }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); margin: 0 0 18px; }
h3 { font-size: 1.35rem; margin: 0 0 9px; }
.lead { font-size: clamp(1.1rem, 2vw, 1.32rem); color: #4e535b; max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  font-weight: 780;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--ink); color: #fff; box-shadow: 0 10px 28px rgba(17,19,24,.18); }
.button-secondary { background: transparent; color: var(--ink); }
.button-light { background: #fff; color: var(--ink); border-color: rgba(255,255,255,.8); }

.hero-card {
  padding: 34px;
  border-radius: 34px;
  background: var(--ink);
  color: white;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.hero-card::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -90px;
  top: -90px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .85;
}
.hero-card > * { position: relative; z-index: 1; }
.hero-card .mini { color: rgba(255,255,255,.64); font-size: .87rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; }
.hero-card .big { font-size: clamp(2.4rem, 5vw, 4.5rem); font-weight: 900; letter-spacing: -.055em; margin: 32px 0 5px; line-height: .95; }
.hero-card p { color: rgba(255,255,255,.75); }
.mock-list { margin: 28px 0 0; padding: 0; list-style: none; display: grid; gap: 11px; }
.mock-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  border-top: 1px solid rgba(255,255,255,.13); padding-top: 11px;
}
.mock-list span:last-child { font-weight: 800; }

.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.section-dark { background: var(--ink); color: white; }
.section-dark .lead, .section-dark .muted { color: rgba(255,255,255,.72); }
.section-heading { max-width: 760px; margin-bottom: 34px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.card {
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 27px;
}
.card p:last-child { margin-bottom: 0; }
.card-kicker { color: var(--accent-dark); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 850; }

.disclaimer {
  padding: 30px;
  border: 1px solid #cfc8b8;
  border-left: 5px solid var(--accent);
  border-radius: 20px;
  background: #fffdf8;
}
.disclaimer strong { display: block; margin-bottom: 7px; }

.page-hero { padding: 72px 0 36px; }
.page-hero h1 { font-size: clamp(2.8rem, 6vw, 5.2rem); margin-bottom: 18px; }
.page-content { padding: 20px 0 80px; }
.prose { max-width: 820px; }
.prose h2 { font-size: 1.75rem; margin-top: 44px; }
.prose h3 { font-size: 1.15rem; margin-top: 30px; letter-spacing: -.02em; }
.prose p, .prose li { color: #3e434b; }
.prose a { color: #1d4b83; text-underline-offset: 3px; }
.prose ul { padding-left: 1.3rem; }
.meta { font-size: .93rem; color: var(--muted); }

.source-card, .contact-card {
  display: block;
  text-decoration: none;
  background: white;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
}
.source-card:hover, .contact-card:hover { border-color: #aaa399; }
.source-card .url { word-break: break-word; color: var(--muted); font-size: .88rem; margin-top: 12px; }
.contact-card p { margin-bottom: 0; color: var(--muted); }
.contact-card .email { color: #1d4b83; font-weight: 750; word-break: break-word; }

.download-panel {
  max-width: 760px;
  margin: 20px auto 0;
  padding: 38px;
  border-radius: 30px;
  background: white;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-align: center;
}
.store-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 26px 0 14px; }
.store-button {
  min-width: 210px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--ink);
  border-radius: 15px;
  padding: 13px 18px;
  background: var(--ink);
  color: white;
  text-decoration: none;
  font-weight: 780;
}
.store-button small { display: block; font-size: .68rem; font-weight: 600; opacity: .75; text-transform: uppercase; letter-spacing: .05em; }
.store-button span { display: block; font-size: 1rem; }
.store-icon { font-size: 1.35rem; }

.site-footer { border-top: 1px solid var(--line); padding: 42px 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .6fr .6fr;
  gap: 30px;
}
.footer-title { font-weight: 850; font-size: 1.1rem; }
.footer-links { display: grid; gap: 8px; align-content: start; }
.footer-links a { color: #4f535b; text-decoration: none; font-size: .93rem; }
.footer-links a:hover { text-decoration: underline; }
.footer-note { color: var(--muted); font-size: .86rem; margin-top: 18px; max-width: 720px; }

.notice {
  border-radius: 17px;
  padding: 16px 18px;
  background: var(--panel);
  font-size: .92rem;
  color: #454a51;
}

@media (max-width: 850px) {
  .hero { padding-top: 58px; }
  .hero-grid, .grid-3, .grid-2, .footer-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 30px; }
  .nav-links {
    display: none;
    position: absolute;
    left: 20px; right: 20px; top: 68px;
    padding: 18px;
    flex-direction: column;
    align-items: stretch;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .menu-button { display: inline-block; }
  .nav-cta { text-align: center; }
}
@media (max-width: 520px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  h1 { font-size: 3rem; }
  .hero-card, .download-panel { padding: 26px; border-radius: 24px; }
  .section { padding: 54px 0; }
}