:root {
  color-scheme: light;
  --bg: #eef6f8;
  --bg-alt: #f7fbfc;
  --panel: rgba(255, 255, 255, 0.84);
  --text: #142026;
  --muted: #5f717a;
  --line: rgba(120, 150, 160, 0.32);
  --primary: #008a7a;
  --primary-dark: #0f766e;
  --primary-soft: rgba(0, 138, 122, 0.12);
  --danger: #b42318;
  --ok: #1c7c54;
  --wait: #b45309;
  --shadow: 0 16px 40px rgba(18, 27, 38, 0.12);
  --radius: 16px;
  --touch: 44px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #081216;
  --bg-alt: #0f1a1f;
  --panel: rgba(18, 32, 38, 0.88);
  --text: #e8f4f8;
  --muted: #a8c0c8;
  --line: rgba(160, 200, 210, 0.18);
  --primary: #22d3ee;
  --primary-dark: #67e8f9;
  --primary-soft: rgba(34, 211, 238, 0.14);
  --danger: #ff8a80;
  --ok: #4ecb8f;
  --wait: #fbbf24;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --bg: #081216;
    --bg-alt: #0f1a1f;
    --panel: rgba(18, 32, 38, 0.88);
    --text: #e8f4f8;
    --muted: #a8c0c8;
    --line: rgba(160, 200, 210, 0.18);
    --primary: #22d3ee;
    --primary-dark: #67e8f9;
    --primary-soft: rgba(34, 211, 238, 0.14);
    --danger: #ff8a80;
    --ok: #4ecb8f;
    --wait: #fbbf24;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  background: linear-gradient(160deg, rgba(0, 138, 122, 0.16), transparent 42%),
    linear-gradient(180deg, var(--bg), var(--bg-alt));
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.45;
  padding-bottom: env(safe-area-inset-bottom);
}

a { color: var(--primary-dark); }

.hidden { display: none !important; }

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px 12px;
  padding-top: calc(14px + env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 10;
}
.app-header h1 { font-size: 18px; margin: 0; }
.sub, .muted { color: var(--muted); font-size: 13px; }
.header-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }

main { max-width: 860px; margin: 0 auto; padding: 16px 16px 80px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 14px;
}

h2 { font-size: 18px; margin: 0 0 8px; }

button, .tab {
  font: inherit;
  min-height: var(--touch);
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
button.primary:hover { background: var(--primary-dark); }
button.lg { width: 100%; font-weight: 600; }
button.ghost { background: transparent; }
button.danger { color: var(--danger); border-color: var(--danger); }
button:disabled { opacity: 0.5; }

.tabs { display: flex; gap: 8px; margin: 0 0 16px; }
.tab { flex: 1; }
.tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }

.list { display: flex; flex-direction: column; gap: 10px; }
.item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
}
.item strong { display: block; margin-bottom: 4px; }

label.field span, .field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
label.field { display: block; margin: 12px 0; }
input, select, textarea {
  width: 100%;
  font: inherit;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
}
textarea { resize: vertical; min-height: 72px; }
.check { display: flex; align-items: center; gap: 10px; margin: 12px 0; font-size: 14px; }
.check input { width: auto; }

.centered { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login { text-align: center; max-width: 420px; }
.eyebrow { letter-spacing: 0.08em; text-transform: uppercase; font-size: 12px; color: var(--primary-dark); margin-bottom: 0; }
.err { color: var(--danger); font-size: 14px; min-height: 1.2em; }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 16px; box-shadow: var(--shadow); max-width: 90vw; z-index: 20;
}
.toast.error { border-color: var(--danger); color: var(--danger); }

.badge {
  display: inline-block;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  margin-right: 6px;
}
.badge.fait { background: rgba(28, 124, 84, 0.16); color: var(--ok); }
.badge.en_cours { background: var(--primary-soft); }
.badge.attente { background: rgba(180, 83, 9, 0.16); color: var(--wait); }
.badge.a_faire, .badge.vide { background: rgba(95, 113, 122, 0.14); color: var(--muted); }
.badge.cond { background: rgba(180, 83, 9, 0.14); color: var(--wait); }

.progress {
  height: 8px;
  border-radius: 999px;
  background: rgba(95, 113, 122, 0.16);
  overflow: hidden;
  margin-top: 8px;
}
.progress > span {
  display: block;
  height: 100%;
  background: var(--primary);
}

.phase { margin: 18px 0; }
.phase h3 { font-size: 15px; margin: 0 0 8px; }
.task {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  margin-bottom: 10px;
  background: var(--panel);
}
.task.conditional { border-style: dashed; }
.task-head { display: flex; justify-content: space-between; gap: 10px; align-items: flex-start; }
.task-head strong { flex: 1; }
.task-tools { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 10px; }
@media (min-width: 640px) {
  .task-tools { grid-template-columns: 180px 1fr; }
}
.help { font-size: 13px; color: var(--muted); margin: 6px 0 0; }

.row-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.phase-admin, .item-admin {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 10px;
}
.phase-admin h4, .item-admin h4 { margin: 0 0 8px; font-size: 14px; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; }
.inline input, .inline select { flex: 1; min-width: 120px; }
.inline button { flex: 0 0 auto; }