/* SwarmBrowser marketing site — shared design system.
   Its own identity: a warm amber primary on a stone-neutral canvas, distinct from the sibling
   services. Palette + typography match order.html / account.html exactly so the whole site reads as
   one product. Self-contained: no @import, no external font/CDN — 'Inter'/'JetBrains Mono' used when
   present, graceful fallback to the system stack (works offline / under strict CSP). */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --amber: #d97706; --amber-hover: #b45309; --amber-light: #fffbeb;
  --amber-glow: rgba(217, 119, 6, 0.07);
  --text: #1c1917; --text-secondary: #57534e; --bg: #ffffff;
  --bg-alt: #fafaf9; --border: #e7e5e4; --green: #16a34a;
  --green-light: #f0fdf4; --ink: #1c1917; --radius: 10px;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
code, pre, .mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

/* Nav */
nav.site { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
nav.site .inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; letter-spacing: -0.5px; }
.logo svg { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 0.9rem; font-weight: 500; color: var(--text-secondary); }
.nav-links a:hover { color: var(--text); }
.nav-links a[aria-current="page"] { color: var(--amber); font-weight: 600; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 22px; border-radius: var(--radius); font-weight: 600; font-size: 0.9rem; transition: all 0.2s; cursor: pointer; border: none; font-family: inherit; }
.btn-primary { background: var(--amber); color: #fff; }
.btn-primary:hover { background: var(--amber-hover); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(217,119,6,0.28); }
.btn-outline { border: 1.5px solid var(--border); color: var(--text-secondary); background: transparent; }
.btn-outline:hover { border-color: var(--amber); color: var(--amber); }
.btn-lg { padding: 14px 30px; font-size: 1rem; border-radius: 12px; }
.btn-sm { padding: 8px 16px; font-size: 0.84rem; }

/* Hero */
.hero { padding: 84px 0 28px; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -60%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at 50% 40%, var(--amber-glow) 0%, transparent 55%); pointer-events: none; }
.hero-badge { position: relative; display: inline-flex; align-items: center; gap: 8px; background: var(--amber-light); color: var(--amber); border: 1px solid rgba(217,119,6,0.2); border-radius: 100px; padding: 6px 14px; font-size: 0.8rem; font-weight: 600; margin-bottom: 26px; }
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 3px rgba(217,119,6,0.15); }
.hero h1 { position: relative; font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 800; letter-spacing: -2px; line-height: 1.08; margin-bottom: 20px; }
.hero h1 .accent { color: var(--amber); }
.hero p.lead { position: relative; font-size: 1.15rem; color: var(--text-secondary); max-width: 640px; margin: 0 auto 34px; line-height: 1.7; }
.hero-buttons { position: relative; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.hero-note { position: relative; font-size: 0.82rem; color: var(--text-secondary); }

/* Stat strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; margin: 40px 0 8px; }
.stat { background: var(--bg); padding: 26px 18px; text-align: center; }
.stat-value { font-size: 1.9rem; font-weight: 800; color: var(--text); letter-spacing: -1px; }
.stat-value .unit { font-size: 1rem; font-weight: 600; color: var(--text-secondary); }
.stat-label { font-size: 0.76rem; color: var(--text-secondary); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.6px; font-weight: 500; }

/* Sections */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-label { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--amber); margin-bottom: 12px; }
.section-title { font-size: 2.1rem; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.8px; line-height: 1.2; }
.section-sub { color: var(--text-secondary); font-size: 1.05rem; max-width: 640px; line-height: 1.7; }
.center { text-align: center; }
.center .section-sub { margin-left: auto; margin-right: auto; margin-bottom: 8px; }

/* Feature cards */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; margin-top: 44px; }
.feature { background: var(--bg); border: 1.5px solid var(--border); border-radius: 16px; padding: 30px; transition: all 0.2s; }
.feature:hover { border-color: var(--amber); box-shadow: 0 8px 30px rgba(217,119,6,0.07); transform: translateY(-2px); }
.feature .ic { width: 46px; height: 46px; background: var(--amber-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.feature h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 9px; }
.feature p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; }
.feature ul { list-style: none; margin-top: 14px; }
.feature li { font-size: 0.86rem; color: var(--text-secondary); padding: 4px 0 4px 24px; position: relative; }
.feature li::before { content: ''; position: absolute; left: 0; top: 8px; width: 15px; height: 15px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23d97706'%3E%3Cpath d='M16.7 5.3a1 1 0 010 1.4l-8 8a1 1 0 01-1.4 0l-4-4a1 1 0 011.4-1.4L8 12.6l7.3-7.3a1 1 0 011.4 0z'/%3E%3C/svg%3E") no-repeat center; }

/* Endpoint chips */
.proto-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.chip { display: inline-flex; align-items: center; gap: 8px; border: 1.5px solid var(--border); border-radius: 9px; padding: 9px 15px; font-size: 0.86rem; font-weight: 600; background: var(--bg); }
.chip.live { border-color: var(--amber); background: var(--amber-light); color: var(--amber); }
.chip .tag { font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; border-radius: 5px; padding: 1px 6px; }
.chip.live .tag { background: var(--amber); color: #fff; }
.chip .tag.weight { background: #e7e5e4; color: #57534e; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; margin-top: 44px; }
.step-num { width: 42px; height: 42px; background: var(--amber); color: #fff; border-radius: 11px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.05rem; margin-bottom: 16px; }
.step h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; }

/* Regions */
.regions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 40px; }
.region-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 12px; padding: 18px 22px; display: flex; align-items: center; gap: 16px; }
.region-flag { font-size: 1.9rem; }
.region-name { font-weight: 700; font-size: 0.95rem; }
.region-detail { font-size: 0.82rem; color: var(--text-secondary); margin-top: 2px; }
.region-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); margin-left: auto; box-shadow: 0 0 0 3px rgba(22,163,74,0.15); }

/* Callout / formula panel (dark, matches order.html total panel) */
.panel { background: var(--ink); color: #e7e5e4; border-radius: 16px; padding: 30px 32px; }
.panel .eq { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 1.15rem; font-weight: 600; letter-spacing: -0.3px; color: #fff; }
.panel .eq .op { color: #a8a29e; }
.panel .cap { font-size: 0.8rem; color: #a8a29e; margin-top: 10px; }

/* Worked-example table (task-units only — NO dollar figures) */
.table-wrap { overflow-x: auto; margin-top: 28px; border: 1px solid var(--border); border-radius: 12px; }
table.lst { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 520px; }
table.lst th, table.lst td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--border); }
table.lst th { background: var(--bg-alt); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-secondary); }
table.lst tr:last-child td { border-bottom: none; }
table.lst td.mono, table.lst td .mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
table.lst td b { color: var(--text); }

/* Info box */
.note { background: var(--bg-alt); border: 1px solid var(--border); border-left: 3px solid var(--amber); border-radius: 10px; padding: 18px 22px; margin-top: 24px; font-size: 0.92rem; color: var(--text-secondary); }
.note strong { color: var(--text); }
.free-note { border-left-color: var(--green); }

/* CTA band */
.cta { background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%); border: 1px solid rgba(217,119,6,0.18); border-radius: 20px; padding: 56px 44px; text-align: center; margin: 72px 0; }
.cta h2 { font-size: 2rem; font-weight: 800; letter-spacing: -0.8px; margin-bottom: 12px; }
.cta p { color: var(--text-secondary); font-size: 1.05rem; margin: 0 auto 28px; max-width: 520px; }

/* Footer */
footer.site { border-top: 1px solid var(--border); padding: 38px 0; }
footer.site .inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
footer.site .links { display: flex; gap: 22px; font-size: 0.85rem; color: var(--text-secondary); flex-wrap: wrap; }
footer.site .links a:hover { color: var(--amber); }
footer.site .copy { font-size: 0.8rem; color: #a8a29e; }

/* Legal / prose (terms) */
.prose h2 { font-size: 1.2rem; font-weight: 700; margin: 40px 0 12px; padding-top: 26px; border-top: 1px solid var(--border); scroll-margin-top: 80px; }
.prose h2:first-of-type { border-top: none; padding-top: 0; }
.prose h3 { font-size: 1rem; font-weight: 700; margin: 26px 0 10px; }
.prose p { color: var(--text-secondary); margin-bottom: 14px; font-size: 0.95rem; }
.prose ul, .prose ol { color: var(--text-secondary); padding-left: 22px; margin-bottom: 14px; font-size: 0.95rem; }
.prose li { margin-bottom: 7px; }
.prose strong { color: var(--text); }
.prose code { background: #f5f5f4; padding: 2px 6px; border-radius: 4px; font-size: 0.85em; color: var(--amber); }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .regions-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 20px; }
  .cta { padding: 40px 24px; }
}