/* =====================================================
   QuittanceDeLoyer — Design System
   ===================================================== */

:root {
  --primary:        #4f46e5;
  --primary-dark:   #3730a3;
  --primary-light:  #eef2ff;
  --accent:         #10b981;
  --accent-dark:    #059669;
  --danger:         #ef4444;
  --danger-dark:    #dc2626;
  --warning:        #f59e0b;
  --bg:             #f1f5f9;
  --card:           #ffffff;
  --border:         #e2e8f0;
  --text:           #0f172a;
  --text-muted:     #64748b;
  --text-light:     #94a3b8;
  --radius:         12px;
  --radius-sm:      8px;
  --shadow:         0 1px 3px rgba(0,0,0,.06), 0 4px 20px rgba(0,0,0,.06);
  --shadow-lg:      0 10px 40px rgba(0,0,0,.10);
  --max-width:      1440px;
  --header-h:       64px;
}

/* ── Reset & base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { padding-left: 1.2rem; }
li { margin: 4px 0; }

/* ── Layout ───────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

main.container {
  flex: 1;
  width: 100%;
  padding-top: 28px;
  padding-bottom: 40px;
}

/* ── Header ───────────────────────────────────────── */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 var(--border), 0 2px 8px rgba(0,0,0,.04);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.3px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo:hover { text-decoration: none; opacity: .85; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background .15s, color .15s;
  text-decoration: none;
}
.nav-link:hover { background: var(--primary-light); color: var(--primary); text-decoration: none; }

.nav-user {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  padding-left: 16px;
  border-left: 1px solid var(--border);
}

.user-badge {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.user-id {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-logout {
  margin-left: 8px;
  padding: 7px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: border-color .15s, color .15s;
}
.btn-logout:hover { border-color: var(--danger); color: var(--danger); text-decoration: none; }

.btn-nav {
  padding: 8px 18px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background .15s;
}
.btn-nav:hover { background: var(--primary-dark); text-decoration: none; }

/* ── Card ─────────────────────────────────────────── */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 32px;
}

/* ── Page header inside card ──────────────────────── */
.card h1 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text);
  margin-bottom: 6px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  gap: 16px;
}

.page-header h1 { margin-bottom: 0; }

.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── Detail grid (show pages) ─────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.detail-row {
  display: flex;
  padding: 13px 18px;
  border-bottom: 1px solid #f1f5f9;
  gap: 16px;
  align-items: baseline;
}
.detail-row:last-child { border-bottom: none; }

.detail-row dt {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  min-width: 140px;
  flex-shrink: 0;
}

.detail-row dd {
  font-size: 0.93rem;
  color: var(--text);
  font-weight: 500;
  margin: 0;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary);
}

.text-muted { color: var(--text-muted); font-size: 0.88rem; margin-top: 2px; }

/* ── Buttons ──────────────────────────────────────── */
.btn, .card .btn, button.btn, .card button.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, transform .1s, box-shadow .15s;
  box-shadow: 0 2px 6px rgba(79,70,229,.25);
  white-space: nowrap;
}
.btn:hover, .card .btn:hover, button.btn:hover, .card button.btn:hover {
  background: var(--primary-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79,70,229,.3);
}

.btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: none;
  transition: border-color .15s, color .15s, background .15s;
  white-space: nowrap;
}
.btn-sm:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); text-decoration: none; }

.btn-success, button.btn-success, .btn-success[type="submit"] {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(16,185,129,.25);
}
.btn-success:hover { background: var(--accent-dark); text-decoration: none; }

.btn-danger, button.btn-danger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid #fca5a5;
  background: #fff;
  color: var(--danger);
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.btn-danger:hover, button.btn-danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); text-decoration: none; }

/* Bouton danger (Supprimer) */
.card .btn[style*="background:#ef4444"],
.card button.btn[style*="background:#ef4444"] {
  background: var(--danger) !important;
  box-shadow: 0 2px 6px rgba(239,68,68,.25);
}
.card .btn[style*="background:#ef4444"]:hover,
.card button.btn[style*="background:#ef4444"]:hover {
  background: var(--danger-dark) !important;
}

/* ── Forms ────────────────────────────────────────── */
form { max-width: 100%; width: 100%; }

.form-group { margin-bottom: 18px; }

label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="datetime-local"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 0.93rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
  margin-bottom: 0;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

select { cursor: pointer; padding-right: 36px; }

button[type="submit"]:not(.btn-sm):not(.btn-success):not(.btn-logout) {
  padding: 10px 22px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background .15s, transform .1s;
  box-shadow: 0 2px 8px rgba(79,70,229,.25);
}
button[type="submit"]:not(.btn-sm):not(.btn-success):not(.btn-logout):hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* ── Tables ───────────────────────────────────────── */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 0;
  font-size: 0.9rem;
}

.table thead th {
  padding: 10px 14px;
  background: var(--bg);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
}
.table thead th:first-child { border-left: 1px solid var(--border); border-radius: var(--radius-sm) 0 0 0; }
.table thead th:last-child  { border-right: 1px solid var(--border); border-radius: 0 var(--radius-sm) 0 0; }

.table tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid #f1f5f9;
  vertical-align: middle;
  color: var(--text);
}

.table tbody tr:hover td { background: #fafbff; }
.table tbody tr:last-child td { border-bottom: none; }

.table th { text-align: left; }

.actions-col {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}

/* ── Flash messages ───────────────────────────────── */
.flash {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
}
.flash-success { background: #f0fdf4; border-color: #bbf7d0; color: #15803d; }
.flash-error   { background: #fef2f2; border-color: #fecaca; color: #dc2626; }
.flash-warning { background: #fffbeb; border-color: #fde68a; color: #b45309; }

/* ── Alerts (login form) ──────────────────────────── */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 0.9rem; }
.alert-danger { background: #fef2f2; border: 1px solid #fecaca; color: #dc2626; }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #15803d; }

/* ── Stats cards (dashboard) ──────────────────────── */
.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.dashboard-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.4px;
  margin-bottom: 4px;
}

.dashboard-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.quick-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.quick-links li { margin: 0; }

.quick-links a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background .15s, color .15s;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}
.quick-links li:last-child a { border-bottom: none; }
.quick-links a:hover { background: var(--primary-light); color: var(--primary); text-decoration: none; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  border-radius: var(--radius);
  padding: 22px 24px;
  color: #fff;
}
.stat-card:nth-child(2) { background: linear-gradient(135deg, var(--accent) 0%, #0891b2 100%); }
.stat-card:nth-child(3) { background: linear-gradient(135deg, #f59e0b 0%, var(--danger) 100%); }
.stat-card:nth-child(4) { background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%); }

.stat-card .stat-value { font-size: 2rem; font-weight: 800; line-height: 1; }
.stat-card .stat-label { font-size: 0.82rem; opacity: .8; margin-top: 6px; font-weight: 500; }

/* ── Footer ───────────────────────────────────────── */
.site-footer {
  padding: 20px 0;
  border-top: 1px solid var(--border);
  background: #fff;
  color: var(--text-light);
  font-size: 0.82rem;
  text-align: center;
  margin-top: auto;
}

/* ── Burger button ───────────────────────────────── */
.burger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.burger-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}

.burger-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger-btn.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
  .burger-btn { display: flex; }

  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 32px;
    gap: 4px;
    z-index: 150;
    border-top: 1px solid var(--border);
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,.12);
  }

  .main-nav.open { display: flex; }

  .nav-link {
    padding: 13px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border-bottom: 1px solid var(--border);
  }
  .nav-link:last-of-type { border-bottom: none; }

  .nav-user {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    padding-top: 16px;
    margin-top: 8px;
    border-top: 1px solid var(--border);
  }

  .user-id { display: block !important; }

  .btn-logout {
    margin-left: 0;
    margin-top: 12px;
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .btn-nav {
    width: 100%;
    text-align: center;
    justify-content: center;
    margin-top: 8px;
  }

  .container { padding: 0 20px; }
  .card { padding: 20px; }
  .table { font-size: 0.82rem; }
  .table thead th, .table tbody td { padding: 8px 10px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  main.container { padding-top: 18px; }
  .header-inner { gap: 12px; }
  .logo { font-size: 1rem; }
}