/* ==========================================================
   Identité : sobre, dense, inspirée des plaques UIC/RIV
   gravées sur les wagons (encadrés, chiffres au pochoir).
   ========================================================== */

:root {
  --ardoise-900: #1c2530;
  --ardoise-700: #2a3644;
  --ardoise-500: #4b5768;
  --fond: #f5f6f8;
  --carte: #ffffff;
  --bordure: #e1e4e9;
  --texte: #1a2129;
  --texte-att: #5b6572;
  --ambre: #e8a33d;
  --ambre-fonce: #c7842a;
  --vert: #2f7d5c;
  --rouge: #c1392b;
  --font-ui: 'IBM Plex Sans', system-ui, -apple-system, Segoe UI, sans-serif;
  --font-data: 'IBM Plex Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--fond);
  color: var(--texte);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
}
a { color: var(--ardoise-700); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; margin: 0 0 .6em; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .04em; color: var(--texte-att); }

:focus-visible { outline: 2px solid var(--ambre); outline-offset: 2px; }

/* ---------- Structure ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 232px; flex-shrink: 0;
  background: var(--ardoise-900);
  color: #cfd6de;
  padding: 20px 0;
}
.sidebar .brand {
  font-family: var(--font-data);
  font-weight: 600; color: #fff;
  padding: 0 20px 18px;
  border-bottom: 1px solid var(--ardoise-700);
  margin-bottom: 12px;
  font-size: .95rem; letter-spacing: .03em;
}
.sidebar .brand small { display:block; color:#8b96a3; font-weight:400; font-size:.72rem; margin-top:2px;}
.sidebar nav a {
  display: block; padding: 10px 20px;
  color: #cfd6de; font-size: .92rem;
  border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: var(--ardoise-700); text-decoration: none; }
.sidebar nav a.active { background: var(--ardoise-700); border-left-color: var(--ambre); color: #fff; }
.sidebar nav .section-label {
  padding: 16px 20px 4px; font-size: .68rem; text-transform: uppercase;
  letter-spacing: .08em; color: #6b7684;
}

.main { flex: 1; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--carte); border-bottom: 1px solid var(--bordure);
  padding: 12px 28px;
}
.topbar .user { font-size: .88rem; color: var(--texte-att); }
.topbar .user strong { color: var(--texte); }
.content { padding: 28px; max-width: 1280px; }

/* ---------- Cartes / panneaux ---------- */
.card {
  background: var(--carte); border: 1px solid var(--bordure);
  border-radius: 6px; padding: 22px; margin-bottom: 20px;
}
.card-header { display:flex; align-items:center; justify-content:space-between; margin-bottom: 16px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 800px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .sidebar { display:none; }
}

/* ---------- Stat / plaque signalétique (signature) ---------- */
.plate {
  display: inline-flex; align-items: stretch;
  font-family: var(--font-data); font-size: .82rem;
  border: 1.5px solid var(--ardoise-900); border-radius: 3px;
  overflow: hidden;
}
.plate span {
  padding: 3px 9px; border-right: 1.5px solid var(--ardoise-900);
  white-space: nowrap;
}
.plate span:last-child { border-right: none; }
.plate .label { background: var(--ardoise-900); color: #fff; }
.plate .value { background: #fff; color: var(--texte); }

.stat-box {
  border: 1px solid var(--bordure); border-radius: 6px; padding: 14px 16px;
  background: var(--carte);
}
.stat-box .n { font-family: var(--font-data); font-size: 1.6rem; font-weight: 600; }
.stat-box .l { font-size: .78rem; color: var(--texte-att); text-transform: uppercase; letter-spacing: .04em; }

/* ---------- Formulaires ---------- */
label { display: block; font-size: .82rem; color: var(--texte-att); margin-bottom: 4px; }
input, select, textarea {
  width: 100%; padding: 8px 10px; font-family: var(--font-ui); font-size: .92rem;
  border: 1px solid var(--bordure); border-radius: 4px; background: #fff; color: var(--texte);
}
input:focus, select:focus, textarea:focus { border-color: var(--ambre-fonce); }
.field { margin-bottom: 14px; }
.field-inline { display:flex; gap:10px; align-items:center; }

.btn {
  display: inline-block; padding: 9px 16px; border-radius: 4px; border: 1px solid transparent;
  font-size: .88rem; font-weight: 600; cursor: pointer; font-family: var(--font-ui);
}
.btn-primary { background: var(--ardoise-900); color: #fff; }
.btn-primary:hover { background: var(--ardoise-700); text-decoration:none; }
.btn-accent { background: var(--ambre); color: var(--ardoise-900); }
.btn-accent:hover { background: var(--ambre-fonce); text-decoration:none; }
.btn-outline { background: #fff; border-color: var(--bordure); color: var(--texte); }
.btn-outline:hover { border-color: var(--ardoise-500); text-decoration:none; }
.btn-danger { background: #fff; border-color: var(--rouge); color: var(--rouge); }
.btn-danger:hover { background: var(--rouge); color:#fff; text-decoration:none; }
.btn-sm { padding: 5px 10px; font-size: .78rem; }

/* ---------- Tableaux ---------- */
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--bordure); text-align: left; }
th { font-size: .72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--texte-att); font-weight: 600; }
td.num, th.num { font-family: var(--font-data); text-align: right; }
tr:hover td { background: #fafbfc; }
.table-wrap { overflow-x: auto; }

/* ---------- Badges ---------- */
.badge { display:inline-block; padding: 2px 9px; border-radius: 999px; font-size: .74rem; font-weight:600; }
.badge-brouillon { background:#fdf1de; color:var(--ambre-fonce); }
.badge-valide { background:#e4f3ec; color:var(--vert); }
.badge-danger { background:#fbe7e4; color:var(--rouge); }
.badge-role-admin { background:#e6e9ee; color:var(--ardoise-900); }
.badge-role-agent { background:#eef1f4; color:var(--texte-att); }

/* ---------- Alertes / flash ---------- */
.alert { padding: 11px 16px; border-radius: 5px; margin-bottom: 16px; font-size: .88rem; border: 1px solid transparent; }
.alert-success { background:#e4f3ec; color:#1e5a3f; border-color:#bfe2cf; }
.alert-error { background:#fbe7e4; color:#8c2a1f; border-color:#f2c3ba; }
.alert-info { background:#eaf1fb; color:#1f4d8c; border-color:#c9dcf5; }

/* ---------- Page de connexion ---------- */
.login-wrap {
  min-height: 100vh; display:flex; align-items:center; justify-content:center;
  background: var(--ardoise-900);
}
.login-box { width: 360px; background:#fff; border-radius: 8px; padding: 32px; }
.login-box .brand { font-family: var(--font-data); text-align:center; margin-bottom: 22px; }
.login-box .brand strong { display:block; font-size:1.1rem; }
.login-box .brand small { color: var(--texte-att); }

/* ---------- Impression : relevés et bulletins ---------- */
.doc-header { display:flex; justify-content:space-between; align-items:flex-start; border-bottom: 2px solid var(--ardoise-900); padding-bottom: 12px; margin-bottom: 18px; }
.doc-header h1 { margin:0; font-size:1.3rem; }
.doc-meta { font-family: var(--font-data); font-size: .82rem; text-align:right; }
.doc-print-actions { margin-bottom: 16px; }

@media print {
  .sidebar, .topbar, .doc-print-actions, .no-print { display: none !important; }
  .content { padding: 0; max-width: 100%; }
  body { font-size: 12px; }
  .card { border: none; padding: 0; }
  a { text-decoration: none; color: inherit; }
}