/* Sisifo landing — neutral, accessible, light/dark. No external dependencies. */
:root {
  color-scheme: light;
  --bg: #f9f9f7;
  --surface: #ffffff;
  --surface-2: #f0efec;
  --border: rgba(11, 11, 11, 0.1);
  --text: #0b0b0b;
  --text-2: #52514e;
  --muted: #6f6d68;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --s1: #2a78d6;
  --s2: #eb6834;
  --s3: #1baf7a;
  --radius: 14px;
  --max: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #262624;
    --border: rgba(255, 255, 255, 0.1);
    --text: #f0efec;
    --text-2: #c3c2b7;
    --muted: #9a988f;
    --accent: #3987e5;
    --s1: #3987e5;
    --s2: #d95926;
    --s3: #199e70;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
}
a { color: var(--accent); }
img, svg { max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.brand-mark { width: 28px; height: 28px; }
.nav { display: flex; align-items: center; gap: 20px; font-size: 14px; }
.nav a { color: var(--text-2); text-decoration: none; }
.nav a:hover { color: var(--text); }
.nav .lang { border: 1px solid var(--border); border-radius: 8px; padding: 4px 8px; font-size: 12px; }
.nav a.btn-primary { color: var(--accent-ink); padding: 8px 14px; font-size: 14px; }
@media (max-width: 720px) { .nav .hide-sm { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 10px; padding: 12px 18px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid transparent; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost { border-color: var(--border); color: var(--text); background: var(--surface); }
.btn-ghost:hover { background: var(--surface-2); }

/* Hero */
.hero { padding: 72px 0 40px; }
.hero .wrap { display: grid; gap: 48px; grid-template-columns: 1.05fr 1fr; align-items: center; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } .hero { padding-top: 44px; } }
/* Grid children may shrink below their content width (prevents horizontal overflow on phones). */
.hero .wrap > *, .grid > *, .steps > * { min-width: 0; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); padding: 4px 10px; border-radius: 999px; }
h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; letter-spacing: -0.025em; margin: 16px 0 16px; }
.lead { font-size: clamp(17px, 2vw, 19px); color: var(--text-2); max-width: 36em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.fine { font-size: 13px; color: var(--muted); margin-top: 14px; }

/* Product mock */
.mock { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.25); padding: 18px; }
.mock-bar { display: flex; gap: 6px; margin-bottom: 14px; }
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-2); }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
.kpi small { display: block; font-size: 11px; color: var(--text-2); }
.kpi strong { display: block; font-size: 20px; letter-spacing: -0.01em; }
@media (max-width: 480px) { .kpi { padding: 8px 10px; } .kpi strong { font-size: 16px; white-space: nowrap; } }
.kpi em { font-style: normal; font-size: 11px; font-weight: 600; color: #0a7d0a; }
@media (prefers-color-scheme: dark) { .kpi em { color: #2fbf2f; } }
.mock-chart { margin-top: 14px; border: 1px solid var(--border); border-radius: 10px; padding: 12px; }
.legend { display: flex; gap: 14px; font-size: 11px; color: var(--text-2); margin-bottom: 6px; }
.legend i { display: inline-block; width: 12px; height: 2px; vertical-align: middle; margin-right: 5px; border-radius: 2px; }

/* Sections */
section { padding: 64px 0; }
.section-title { font-size: clamp(26px, 3.4vw, 36px); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 10px; }
.section-lead { color: var(--text-2); max-width: 44em; margin: 0 0 32px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.card h3 { margin: 12px 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }
.icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.icon svg { width: 20px; height: 20px; }
.alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.steps { counter-reset: step; display: grid; gap: 16px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step { padding: 22px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg); }
.step::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 700; font-size: 14px; }
.step h3 { margin: 12px 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--text-2); font-size: 15px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; grid-template-columns: repeat(2, 1fr); }
@media (max-width: 700px) { .checks { grid-template-columns: 1fr; } }
.checks li { padding-left: 28px; position: relative; color: var(--text-2); }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; font-weight: 700; color: var(--accent); }
.cta-box { text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 48px 24px; }
.cta-box .cta-row { justify-content: center; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0 40px; font-size: 14px; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--text-2); text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }

/* Legal pages */
.legal { padding: 48px 0 64px; }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(30px, 4vw, 40px); margin-bottom: 4px; }
.legal .meta { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
.legal h2 { font-size: 21px; margin: 36px 0 10px; letter-spacing: -0.01em; }
.legal h3 { font-size: 17px; margin: 22px 0 6px; }
.legal p, .legal li { color: var(--text-2); }
.legal ul { padding-left: 22px; }
.legal li { margin: 4px 0; }
.legal table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 12px 0; }
.legal th, .legal td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.legal th { color: var(--text); font-weight: 600; }
.legal .note { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 10px; padding: 14px 16px; }
.legal .toc { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; font-size: 14px; }
.legal .toc ol { margin: 6px 0 0; padding-left: 20px; }
.table-scroll { overflow-x: auto; }