:root {
  --navy: #0d1f45;
  --navy2: #0a1730;
  --navy3: #060f1e;
  --teal: #38d9c9;
  --teal-dark: #2bc4b5;
  --gray: #9AAABB;
  --border: rgba(255,255,255,0.08);
  --card: rgba(255,255,255,0.04);
  --card-hover: rgba(255,255,255,0.07);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', 'Plus Jakarta Sans', system-ui, sans-serif;
  background: var(--navy3);
  color: #e2e8f0;
  min-height: 100vh;
}

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

.sidebar {
  width: 240px;
  background: var(--navy2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 36px; height: 36px;
  background: var(--teal);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; color: var(--navy); font-size: 1.1rem;
}

.logo-text { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.05em; color: #fff; line-height: 1.3; }
.logo-sub { font-size: 0.65rem; color: var(--gray); letter-spacing: 0.08em; font-weight: 400; }

.sidebar-nav { flex: 1; padding: 1rem 0; }

.nav-section { padding: 0.5rem 1.25rem 0.25rem; font-size: 0.65rem; letter-spacing: 0.1em; color: var(--gray); text-transform: uppercase; font-weight: 600; }

.nav-link {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.6rem 1.25rem;
  color: var(--gray);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: 0;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.nav-link:hover { background: var(--card); color: #e2e8f0; }
.nav-link.active { color: var(--teal); background: rgba(56,217,201,0.08); border-left-color: var(--teal); }
.nav-link svg { flex-shrink: 0; opacity: 0.7; }
.nav-link.active svg { opacity: 1; }

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--gray);
}

/* Main content */
.main-content {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: var(--navy2);
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
}

.topbar-title { font-size: 1rem; font-weight: 600; color: #fff; }
.topbar-actions { display: flex; gap: 0.75rem; align-items: center; }

.page-content { padding: 2rem; flex: 1; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 2rem; }

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
}

.stat-label { font-size: 0.75rem; color: var(--gray); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.5rem; }
.stat-value { font-size: 2rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-sub { font-size: 0.75rem; color: var(--gray); margin-top: 0.25rem; }
.stat-teal .stat-value { color: var(--teal); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.125rem;
  border-radius: 8px;
  font-size: 0.875rem; font-weight: 600;
  border: none; cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn-primary { background: var(--teal); color: var(--navy); }
.btn-primary:hover { background: var(--teal-dark); }

.btn-ghost { background: var(--card); color: #e2e8f0; border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--card-hover); }

.btn-danger { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.25); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 0.75rem 1rem; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--gray); border-bottom: 1px solid var(--border); font-weight: 600; }
td { padding: 0.75rem 1rem; font-size: 0.875rem; border-bottom: 1px solid rgba(255,255,255,0.04); }
tr:hover td { background: var(--card-hover); }

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--gray); margin-bottom: 0.4rem; letter-spacing: 0.03em; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.875rem;
  color: #e2e8f0;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 2px rgba(56,217,201,0.15);
}
.form-textarea { min-height: 200px; resize: vertical; }
.form-select option { background: var(--navy2); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Badges */
.badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.2rem 0.65rem; border-radius: 20px;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.04em;
}

.badge-brouillon { background: rgba(148,163,184,0.15); color: #94a3b8; }
.badge-en_cours { background: rgba(250,204,21,0.15); color: #fbbf24; }
.badge-planifiee { background: rgba(99,102,241,0.15); color: #a5b4fc; }
.badge-terminee { background: rgba(56,217,201,0.15); color: var(--teal); }
.badge-erreur { background: rgba(239,68,68,0.15); color: #f87171; }
.badge-envoye { background: rgba(56,217,201,0.15); color: var(--teal); }
.badge-ouvert { background: rgba(134,239,172,0.15); color: #86efac; }

/* Alert */
.alert { padding: 0.875rem 1rem; border-radius: 8px; font-size: 0.875rem; margin-bottom: 1rem; }
.alert-success { background: rgba(56,217,201,0.1); border: 1px solid rgba(56,217,201,0.25); color: var(--teal); }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.25); color: #f87171; }
.alert-info { background: rgba(99,102,241,0.1); border: 1px solid rgba(99,102,241,0.25); color: #a5b4fc; }

/* Pagination */
.pagination { display: flex; gap: 0.5rem; align-items: center; margin-top: 1.5rem; justify-content: center; }
.page-btn { padding: 0.4rem 0.75rem; border-radius: 6px; background: var(--card); border: 1px solid var(--border); color: var(--gray); font-size: 0.8rem; cursor: pointer; }
.page-btn:hover, .page-btn.active { background: var(--teal); color: var(--navy); border-color: var(--teal); }

/* Editor */
.editor-toolbar { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0.75rem; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-bottom: none; border-radius: 8px 8px 0 0; }
.editor-btn { padding: 0.3rem 0.6rem; background: var(--card); border: 1px solid var(--border); color: var(--gray); border-radius: 5px; cursor: pointer; font-size: 0.8rem; }
.editor-btn:hover { background: var(--card-hover); color: #e2e8f0; }
.editor-area { border-radius: 0 0 8px 8px; border-top: none !important; }

/* Progress bar */
.progress-bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--teal); border-radius: 3px; transition: width 0.3s; }

/* Tooltip */
[title] { cursor: help; }

/* Empty state */
.empty-state { text-align: center; padding: 4rem 2rem; }
.empty-state h3 { color: #fff; margin-bottom: 0.5rem; }
.empty-state p { color: var(--gray); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 200;
  display: flex; align-items: center; justify-content: center;
}
.modal-box {
  background: var(--navy2); border: 1px solid var(--border);
  border-radius: 12px; padding: 2rem; width: 100%; max-width: 520px;
  max-height: 90vh; overflow-y: auto;
  position: relative;
}
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: none; border: none; color: var(--gray);
  font-size: 1.2rem; cursor: pointer; padding: 0.25rem;
}
.modal-close:hover { color: #fff; }

/* Chart container */
.chart-container { position: relative; height: 220px; }

/* Tag */
.tag { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 4px; font-size: 0.7rem; font-weight: 600; background: rgba(56,217,201,0.1); color: var(--teal); }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
}