/* Cobble Accounting — app site
   Palette comes from the Cobble mark: #004AAD, #2E7DE0, #5AA9FF, #072149. */

:root {
  --blue-900: #072149;
  --blue-700: #004aad;
  --blue-600: #0a5ac4;
  --blue-500: #2e7de0;
  --blue-300: #5aa9ff;
  --blue-50: #eef5ff;
  --ink: #0f1b2d;
  --body: #4a5568;
  --muted: #7a8599;
  --line: #e6eaf1;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --ok: #0e9e8e;
  --warn: #d97706;
  --radius: 14px;
  --shadow: 0 20px 50px -20px rgba(7, 33, 73, 0.35);
  --shadow-sm: 0 6px 20px -8px rgba(7, 33, 73, 0.2);
  --max: 1160px;
  --font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section.soft { background: var(--bg-soft); }
.eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue-500); margin-bottom: 14px;
}
.center { text-align: center; }
.lead { font-size: 1.12rem; }
.narrow { max-width: 680px; margin-left: auto; margin-right: auto; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; justify-content: center;
  padding: 14px 26px; border-radius: 10px; font-weight: 700; font-size: .98rem;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
  font-family: inherit;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--blue-700); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--blue-600); }
.btn-white { background: #fff; color: var(--blue-700); box-shadow: var(--shadow-sm); }
.btn-ghost { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-outline { border-color: var(--blue-700); color: var(--blue-700); }

/* Header */
.site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 10; padding: 22px 0; }
.site-header.solid { position: sticky; background: #fff; border-bottom: 1px solid var(--line); padding: 16px 0; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.3rem; color: #fff; letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.brand .logo-chip { background: #fff; border-radius: 9px; padding: 3px; }
.solid .brand { color: var(--ink); }
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: rgba(255,255,255,.92); font-weight: 600; font-size: .95rem; }
.solid .nav-links a { color: var(--ink); }
.nav-links .btn { padding: 10px 20px; }
.solid .nav-links .btn-ghost { border-color: var(--blue-700); color: var(--blue-700); }

/* Hero */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(90,169,255,.55), transparent 60%),
    linear-gradient(135deg, var(--blue-700) 0%, var(--blue-500) 60%, var(--blue-300) 100%);
  padding: 170px 0 200px;
}
.hero::before {
  /* soft diagonal light planes, like the reference layout */
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(115deg, transparent 40%, rgba(255,255,255,.07) 40%, rgba(255,255,255,.07) 62%, transparent 62%),
    linear-gradient(160deg, transparent 55%, rgba(255,255,255,.06) 55%);
  pointer-events: none;
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; }
.hero p.lead { color: rgba(255,255,255,.9); max-width: 520px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 18px; }
.hero-note { font-size: .88rem; color: rgba(255,255,255,.8); }
.hero-note a { color: #fff; text-decoration: underline; }
.wave { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: 140px; }

/* App mock in the hero */
.mock {
  background: #fff; border-radius: 16px; box-shadow: 0 40px 80px -30px rgba(7,33,73,.6);
  color: var(--ink); overflow: hidden; font-size: .82rem; line-height: 1.4;
  transform: perspective(1600px) rotateY(-6deg) rotateX(2deg);
}
.mock-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: #fbfcfe; }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: #e2e6ee; display: block; }
.mock-bar span { margin-left: 10px; color: var(--muted); font-weight: 600; }
.mock-body { display: grid; grid-template-columns: 150px 1fr; min-height: 330px; }
.mock-side { border-right: 1px solid var(--line); padding: 14px 10px; background: #fbfcfe; }
.mock-side div { padding: 8px 10px; border-radius: 8px; color: var(--body); font-weight: 600; display: flex; justify-content: space-between; }
.mock-side div.on { background: var(--blue-50); color: var(--blue-700); }
.mock-side b { background: var(--blue-700); color: #fff; border-radius: 20px; padding: 0 7px; font-size: .72rem; }
.mock-main { padding: 16px 18px; }
.mock-main h4 { font-size: .95rem; margin-bottom: 10px; }
.txn { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; margin-bottom: 8px; }
.txn .who { font-weight: 700; }
.txn .amt { font-weight: 700; text-align: right; }
.txn .amt.in { color: var(--ok); }
.txn .meta { color: var(--muted); font-size: .75rem; }
.chip { display: inline-block; font-size: .7rem; font-weight: 700; padding: 2px 8px; border-radius: 20px; }
.chip.ai { background: var(--blue-50); color: var(--blue-700); }
.chip.ask { background: #fff4e5; color: var(--warn); }
.chip.ok { background: #e6f7f5; color: var(--ok); }

/* Feature row */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 34px; margin-top: -40px; position: relative; }
.feature { text-align: center; padding: 10px 6px; }
.icon {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 18px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue-50), #fff); border: 1px solid #dde9fb; color: var(--blue-700);
}
.icon svg { width: 30px; height: 30px; }
.feature p { font-size: .95rem; }
.divider { height: 1px; background: var(--line); margin: 80px 0 0; }

/* Alternating split sections */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split.flip .split-media { order: 2; }
.ticks { list-style: none; padding: 0; margin: 20px 0 0; }
.ticks li { position: relative; padding-left: 34px; margin-bottom: 14px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--blue-700) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat;
}
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 26px;
}
.panel-blue {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500)); border-radius: 22px; padding: 34px;
}

/* Digest / question mock */
.q { background: #fff; border-radius: 14px; padding: 20px; box-shadow: var(--shadow-sm); margin-bottom: 14px; color: var(--ink); }
.q small { color: var(--muted); display: block; margin-bottom: 6px; }
.q .opts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.q .opts span { border: 1px solid var(--line); border-radius: 8px; padding: 6px 12px; font-size: .85rem; font-weight: 600; }
.q .opts span.sel { border-color: var(--blue-700); background: var(--blue-50); color: var(--blue-700); }

/* Write-log mock */
.log { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .8rem; }
.log div { display: grid; grid-template-columns: 1.2fr 1fr 1.4fr; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.log div:last-child { border-bottom: 0; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 50px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.step .n {
  width: 44px; height: 44px; border-radius: 12px; background: var(--blue-700); color: #fff; font-weight: 800;
  display: grid; place-items: center; margin-bottom: 18px;
}

/* Security band */
.band { background: var(--blue-900); color: rgba(255,255,255,.85); }
.band h2, .band h3 { color: #fff; }
.band .eyebrow { color: var(--blue-300); }
.sec-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 44px; }
.sec { border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); padding: 26px; background: rgba(255,255,255,.03); }
.sec p { font-size: .95rem; margin: 0; }

/* FAQ */
.faq { max-width: 820px; margin: 44px auto 0; }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq summary { cursor: pointer; font-weight: 700; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 20px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--blue-700); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 12px 0 0; }

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500) 70%, var(--blue-300));
  border-radius: 26px; padding: 64px; color: #fff; display: flex; justify-content: space-between; align-items: center; gap: 30px;
}
.cta h2 { color: #fff; margin: 0 0 8px; }
.cta p { margin: 0; color: rgba(255,255,255,.88); }

/* Footer */
.site-footer { padding: 70px 0 40px; border-top: 1px solid var(--line); font-size: .93rem; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.site-footer .brand { color: var(--ink); margin-bottom: 14px; }
.site-footer h4 { font-size: .95rem; margin-bottom: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: var(--body); }
.legal-line { margin-top: 50px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; color: var(--muted); font-size: .84rem; }

/* Inner pages (policies, connect, disconnect) */
.page-hero {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500)); color: #fff; padding: 70px 0 60px;
}
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 8px; }
.page-hero p { color: rgba(255,255,255,.88); margin: 0; }
.doc { max-width: 780px; margin: 0 auto; padding: 60px 24px 90px; }
.doc h2 { font-size: 1.4rem; margin-top: 2.2em; }
.doc h3 { font-size: 1.08rem; margin-top: 1.6em; }
.doc ul { padding-left: 1.2em; }
.doc li { margin-bottom: .5em; }
.doc table { width: 100%; border-collapse: collapse; margin: 1em 0 1.6em; font-size: .93rem; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc th { color: var(--ink); background: var(--bg-soft); }
.notice {
  background: var(--blue-50); border: 1px solid #cfe0fa; border-left: 4px solid var(--blue-700);
  border-radius: 10px; padding: 16px 20px; color: var(--ink); font-size: .95rem;
}
.status-card { max-width: 620px; margin: -40px auto 90px; position: relative; text-align: center; padding: 44px 40px; }
.status-icon { width: 72px; height: 72px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 20px; }
.status-icon.ok { background: #e6f7f5; color: var(--ok); }
.status-icon.info { background: var(--blue-50); color: var(--blue-700); }
.status-icon svg { width: 36px; height: 36px; }
.status-card .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }
/* Responsive */
@media (max-width: 980px) {
  .hero { padding: 140px 0 170px; }
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 50px; }
  .split.flip .split-media { order: 0; }
  .features { grid-template-columns: repeat(2, 1fr); margin-top: 0; }
  .steps, .sec-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .cta { flex-direction: column; align-items: flex-start; padding: 44px 32px; }
  .mock { transform: none; }
  .nav-links li:not(.keep) { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .section { padding: 70px 0; }
  .features { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .log div { grid-template-columns: 1fr; gap: 2px; }
  .status-card { padding: 34px 22px; margin-left: 16px; margin-right: 16px; }
}