/* =============================================================================
   SIREB — layout.css
   Sidebar, Header, Main Content, Responsive Grid
   ============================================================================= */

/* ============================================================================
   APP SHELL
   ============================================================================ */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */
.sidebar {
  width: 260px;
  min-width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 200;
  transition: transform var(--transition-normal);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-logo {
  padding: var(--space-lg) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  flex-shrink: 0;
}

.sidebar-logo-icon {
  width: 40px; height: 40px;
  background: var(--gradient-logo);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-logo-text {
  flex: 1;
  min-width: 0;
}

.sidebar-logo-name {
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.sidebar-logo-sub {
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: var(--space-sm) 0;
  overflow-y: auto;
}

.sidebar-section-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: var(--space-sm) var(--space-md);
  margin-top: var(--space-sm);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 400;
  transition: all var(--transition-fast);
  border-radius: 0;
  position: relative;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.sidebar-item:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.sidebar-item.active {
  color: var(--text-primary);
  background: var(--bg-active);
  font-weight: 500;
}

.sidebar-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.sidebar-item-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}
.sidebar-item:hover .sidebar-item-icon,
.sidebar-item.active .sidebar-item-icon { opacity: 1; }

.sidebar-item-text { flex: 1; min-width: 0; }

.sidebar-badge {
  background: var(--danger-bg);
  color: var(--danger-text);
  border: 1px solid rgba(122,42,42,0.3);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

/* Sidebar footer — user info */
.sidebar-footer {
  padding: var(--space-md);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.sidebar-user-info { flex: 1; min-width: 0; }

.sidebar-user-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-logout {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.sidebar-logout:hover { color: var(--danger-text); background: var(--danger-bg); }

/* ============================================================================
   MAIN CONTENT AREA
   ============================================================================ */
.main-content {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ============================================================================
   TOPBAR / HEADER
   ============================================================================ */
.topbar {
  height: 64px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-xl);
  gap: var(--space-md);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-shrink: 0;
}

.topbar-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.topbar-hamburger:hover { color: var(--text-primary); background: var(--bg-hover); }

.topbar-breadcrumb {
  flex: 1;
  min-width: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
  flex-wrap: wrap;
}

.breadcrumb-item {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.breadcrumb-item a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.breadcrumb-item a:hover { color: var(--text-primary); }

.breadcrumb-item.active { color: var(--text-primary); font-weight: 500; }

.breadcrumb-separator {
  color: var(--border-light);
  font-size: var(--text-xs);
}

.topbar-page-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Notification bell */
.notif-btn {
  position: relative;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  width: 38px; height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.notif-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-focus);
}

.notif-badge {
  position: absolute;
  top: -4px; right: -4px;
  width: 16px; height: 16px;
  background: var(--danger);
  color: var(--danger-text);
  border-radius: 50%;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-secondary);
}

/* User avatar button */
.user-menu-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}
.user-menu-btn:hover { background: var(--bg-hover); border-color: var(--border-focus); }

.user-menu-name {
  font-size: var(--text-sm);
  font-weight: 500;
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================================
   PAGE CONTENT WRAPPER
   ============================================================================ */
.page-content {
  flex: 1;
  padding: var(--space-xl);
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.page-title-group { flex: 1; }
.page-title { font-size: var(--text-2xl); font-weight: 700; margin-bottom: 4px; }
.page-subtitle { font-size: var(--text-sm); color: var(--text-muted); }

.page-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
}

/* ============================================================================
   KPI GRID
   ============================================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

/* ============================================================================
   CONTENT GRID
   ============================================================================ */
.content-grid {
  display: grid;
  gap: var(--space-lg);
}

.content-grid-2 { grid-template-columns: 1fr 1fr; }
.content-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.content-grid-sidebar { grid-template-columns: 1fr 340px; }
.content-grid-wide-sidebar { grid-template-columns: 1fr 420px; }

/* ============================================================================
   SIDEBAR OVERLAY (mobile)
   ============================================================================ */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 199;
  backdrop-filter: blur(2px);
}

/* ============================================================================
   MOBILE RESPONSIVE
   ============================================================================ */

/* Tablet: 768px - 1024px */
@media (max-width: 1024px) {
  .content-grid-2,
  .content-grid-3 { grid-template-columns: 1fr 1fr; }
  .content-grid-sidebar { grid-template-columns: 1fr; }
  .content-grid-wide-sidebar { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
  .form-row-4 { grid-template-columns: 1fr 1fr; }
  .form-row-3 { grid-template-columns: 1fr 1fr; }
}

/* Mobile: < 768px */
@media (max-width: 768px) {
  /* Sidebar becomes a drawer */
  .sidebar {
    transform: translateX(-100%);
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }
  .sidebar-overlay.active { display: block; }

  .topbar-hamburger { display: flex; }

  .main-content { margin-left: 0; }

  .page-content { padding: var(--space-md); }

  .content-grid-2,
  .content-grid-3 { grid-template-columns: 1fr; }

  .kpi-grid { grid-template-columns: 1fr 1fr; }

  .form-row-2,
  .form-row-3,
  .form-row-4 { grid-template-columns: 1fr; }

  .page-header { flex-direction: column; }
  .page-actions { width: 100%; }

  .topbar { padding: 0 var(--space-md); }
  .topbar-page-title { display: none; }

  .user-menu-name { display: none; }

  .table tbody td,
  .table thead th { padding: 10px 12px; }

  .breadcrumb { display: none; }
}

/* Small mobile: < 480px */
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .kpi-card { padding: var(--space-md); }
  .kpi-value { font-size: var(--text-2xl); }

  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .compare-container { grid-template-columns: 1fr; }
  .compare-side:last-child { display: none; }

  .modal { padding: var(--space-md); border-radius: var(--radius-lg); }
  .form-section { padding: var(--space-md); }
}

/* ============================================================================
   LOGIN PAGE LAYOUT
   ============================================================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

/* Background pattern for login */
.login-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(192,192,192,0.03) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(42,74,106,0.05) 0%, transparent 50%),
    radial-gradient(circle at 60% 80%, rgba(74,122,74,0.03) 0%, transparent 40%);
  pointer-events: none;
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
  animation: fadeIn 400ms both;
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.login-logo-icon {
  width: 72px; height: 72px;
  background: var(--gradient-logo);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.login-app-name {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.login-org-name {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.login-tagline {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-sm);
  font-style: italic;
}

.login-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-lg) 0;
}

/* ============================================================================
   NOTIFICATION PANEL (slide-in)
   ============================================================================ */
.notif-panel {
  position: fixed;
  top: 64px;
  right: var(--space-lg);
  width: 360px;
  max-height: calc(100vh - 80px);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 300;
  overflow-y: auto;
  animation: slideDown 200ms both;
}

.notif-panel-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: var(--text-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.notif-item {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  transition: background var(--transition-fast);
  cursor: pointer;
}
.notif-item:hover { background: var(--bg-hover); }
.notif-item:last-child { border-bottom: none; }

.notif-item-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--danger-text);
  margin-top: 5px;
  flex-shrink: 0;
}

.notif-item-body { flex: 1; }
.notif-item-title { font-size: var(--text-sm); font-weight: 500; color: var(--text-primary); }
.notif-item-desc { font-size: var(--text-xs); color: var(--text-muted); margin-top: 2px; }
.notif-item-time { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ============================================================================
   PRINT STYLES (for PDF export)
   ============================================================================ */
@media print {
  .sidebar, .topbar, .page-actions, .btn, .no-print { display: none !important; }
  .main-content { margin-left: 0; }
  .page-content { padding: 0; max-width: 100%; }
  body { background: #fff; color: #000; }
  .card { border: 1px solid #ddd; break-inside: avoid; }
  .table tbody tr { break-inside: avoid; }

  .print-header {
    display: block !important;
    text-align: center;
    border-bottom: 2px solid #000;
    padding-bottom: 12px;
    margin-bottom: 24px;
  }
}

.print-header { display: none; }