/* ============================================================
   Belyo — Design system partagé (landing + outil)
   ============================================================ */

:root {
  --bg: #F5F4F0;
  --panel: #FFFFFF;
  --ink: #1B2430;
  --ink-soft: #5B6472;
  --line: #DDD9CD;
  --line-soft: #EAE7DD;
  --accent: #2C4A66;
  --accent-soft: #E5ECF1;
  --urgent: #B23A2E;
  --urgent-soft: #F6E7E4;
  --warn: #93701F;
  --warn-soft: #F4EDDD;
  --done: #3F6D4E;
  --done-soft: #E5EEE7;

  --radius-sm: 7px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --font-display: "Space Grotesk", "IBM Plex Sans", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent); }

img, svg { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.mono { font-family: var(--font-mono); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
.btn-primary:hover { background: #223b50; }

.btn-secondary {
  background: var(--panel);
  color: var(--ink);
  border-color: var(--line);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border-color: transparent;
  padding: 8px 12px;
}
.btn-ghost:hover { color: var(--ink); }

.btn-sm { padding: 8px 14px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* --- Badges / pills --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-soft);
  white-space: nowrap;
}
.badge-accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.badge-urgent { background: var(--urgent-soft); color: var(--urgent); border-color: transparent; }
.badge-warn   { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge-done   { background: var(--done-soft); color: var(--done); border-color: transparent; }

.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex: none; }

/* --- Site header (shared) --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 244, 240, 0.9);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-nav a:not(.btn) {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a:not(.btn):hover { color: var(--ink); }
.nav-links { display: flex; gap: 28px; }

@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* --- Footer (shared) --- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  color: var(--ink-soft);
  font-size: 0.85rem;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.site-footer a { color: var(--ink-soft); }
.footer-refs {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
}

/* --- Section helpers --- */
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--urgent);
  background: var(--urgent-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); }
.section-head p { color: var(--ink-soft); font-size: 1.05rem; }

/* --- Cards --- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
}