:root {
  --blue: #0b5fa5;
  --blue-dark: #073e6e;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --border: #e0e4ea;
  --text: #1c2733;
  --text-light: #6b7686;
  --green: #1f9d55;
  --orange: #e2891d;
  --red: #d03b3b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.hidden { display: none !important; }

/* Login */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
}
.login-box {
  background: var(--card-bg);
  padding: 40px;
  border-radius: 12px;
  width: 320px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  text-align: center;
}
.login-box h1 { margin: 0 0 4px; font-size: 22px; }
.subtitle { color: var(--text-light); font-size: 13px; margin-bottom: 24px; }
.login-box input {
  width: 100%; padding: 10px 12px; margin-bottom: 12px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 14px;
}
.login-box button {
  width: 100%; padding: 10px; background: var(--blue); color: #fff;
  border: none; border-radius: 8px; font-size: 14px; cursor: pointer; font-weight: 600;
}
.login-box button:hover { background: var(--blue-dark); }
.error-msg { color: var(--red); font-size: 13px; min-height: 18px; margin-top: 8px; }

/* App shell */
.topbar {
  display: flex; align-items: center; gap: 24px;
  background: var(--blue-dark); color: #fff; padding: 0 20px; height: 56px;
}
.brand { font-weight: 700; white-space: nowrap; }
.tabs { display: flex; gap: 4px; flex: 1; }
.tab-btn {
  background: transparent; border: none; color: #cfe0f0; padding: 10px 14px;
  cursor: pointer; border-radius: 6px; font-size: 14px;
}
.tab-btn:hover { background: rgba(255,255,255,0.1); }
.tab-btn.active { background: rgba(255,255,255,0.18); color: #fff; font-weight: 600; }
.user-menu { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.user-menu button {
  background: rgba(255,255,255,0.15); border: none; color: #fff; padding: 6px 12px;
  border-radius: 6px; cursor: pointer;
}
.user-menu button:hover { background: rgba(255,255,255,0.28); }

.content { padding: 24px; max-width: 1100px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
h2 { margin: 0 0 16px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 24px; }
.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 16px;
}
.card .num { font-size: 28px; font-weight: 700; color: var(--blue); }
.card .label { font-size: 13px; color: var(--text-light); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

.panel {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 16px;
}
.panel h3 { margin-top: 0; font-size: 15px; }
.simple-list { list-style: none; padding: 0; margin: 0; }
.simple-list li {
  padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px; display: flex; justify-content: space-between;
}
.simple-list li:last-child { border-bottom: none; }
.simple-list .muted { color: var(--text-light); font-size: 13px; }
.empty-msg { color: var(--text-light); font-size: 13px; padding: 8px 0; }

.filters { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.filters input, .filters select {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px;
}
.filters input { flex: 1; min-width: 200px; }

.data-table { width: 100%; border-collapse: collapse; background: var(--card-bg); border-radius: 10px; overflow: hidden; }
.data-table th, .data-table td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 13px;
}
.data-table th { background: #eef2f7; color: var(--text-light); font-weight: 600; text-transform: uppercase; font-size: 11px; }
.data-table tr:hover td { background: #f8fafc; }
.data-table .row-actions button {
  background: none; border: 1px solid var(--border); border-radius: 6px; padding: 4px 8px;
  cursor: pointer; font-size: 12px; margin-right: 4px;
}
.data-table .row-actions button:hover { background: #eef2f7; }
.ligne-ancienne td { background: #fbdada; color: #8a1f1f; font-weight: 600; }
.ligne-ancienne:hover td { background: #f5c6c6; }
.ligne-groupe:hover td { background: #eef2f7; }
.ligne-groupe.ligne-ancienne:hover td { background: #f5c6c6; }
.ligne-detail-groupe td { background: #fafbfc; }
.ligne-detail-groupe.ligne-ancienne td { background: #fbdada; }
.inline-edit {
  width: 100%; border: 1px solid transparent; background: transparent; font-size: 13px;
  padding: 4px 6px; border-radius: 6px; color: var(--text);
}
.inline-edit:hover { border-color: var(--border); }
.inline-edit:focus { border-color: var(--blue); background: #fff; outline: none; }
.inline-edit:disabled { color: var(--text-light); cursor: default; }
.inline-edit-ok { border-color: var(--green) !important; background: #e1f5ea !important; }
.inline-edit-erreur { border-color: #d03b3b !important; }

.btn-primary {
  background: var(--blue); color: #fff; border: none; padding: 9px 16px; border-radius: 7px;
  cursor: pointer; font-size: 13px; font-weight: 600;
}
.btn-primary:hover { background: var(--blue-dark); }

.badge { padding: 3px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-actif, .badge-a_venir, .badge-disponible, .badge-confirme { background: #e1f5ea; color: var(--green); }
.badge-inactif, .badge-terminee { background: #eee; color: var(--text-light); }
.badge-suspendu, .badge-annulee, .badge-refuse, .badge-indisponible { background: #fbe4e4; color: var(--red); }
.badge-en_cours, .badge-propose { background: #fdf1de; color: var(--orange); }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(10,20,35,0.5);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal {
  background: #fff; border-radius: 12px; padding: 24px; width: 100%; max-width: 520px;
  max-height: 88vh; overflow-y: auto;
}
.modal h3 { margin-top: 0; }
.modal form { display: flex; flex-direction: column; gap: 10px; }
.modal label { font-size: 12px; color: var(--text-light); font-weight: 600; margin-bottom: -6px; }
.modal input, .modal select, .modal textarea {
  padding: 9px 10px; border: 1px solid var(--border); border-radius: 7px; font-size: 14px; width: 100%;
  font-family: inherit;
}
.modal .form-row { display: flex; gap: 10px; }
.modal .form-row > div { flex: 1; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }
.btn-secondary {
  background: #eef2f7; border: none; padding: 9px 16px; border-radius: 7px; cursor: pointer; font-size: 13px;
}
.modal .subsection { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 12px; }