/* =====================================================
   WANDERLUST - LAYOUT STYLES
   Sidebar, Header, Navigation
   ===================================================== */

/* ==================== SIDEBAR ==================== */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: linear-gradient(180deg, var(--primary-900) 0%, var(--primary-800) 50%, var(--primary-700) 100%);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.logo-text {
  font-family: 'Poppins', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: white;
  letter-spacing: -0.5px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 24px;
}

.nav-section-title {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary-300);
  padding: 0 12px;
  margin-bottom: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  color: var(--primary-200);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-fast);
  margin-bottom: 4px;
  position: relative;
}

.nav-item i {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.12);
  color: white;
}

.nav-item.active {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: white;
  border-radius: 0 4px 4px 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--danger-500);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-md);
}

.user-avatar {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  font-size: 16px;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  color: white;
  font-weight: 600;
  font-size: 14px;
}

.user-status {
  color: var(--primary-300);
  font-size: 12px;
}

/* Mobile Sidebar Overlay */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ==================== TOP HEADER ==================== */
.top-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 32px;
  z-index: 50;
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  background: var(--slate-100);
  border-radius: var(--border-radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--slate-600);
  font-size: 18px;
}

.header-title {
  flex: 1;
}

.header-title h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 2px;
}

.header-title p {
  font-size: 13px;
  color: var(--slate-500);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--slate-100);
  border-radius: var(--border-radius-lg);
  min-width: 280px;
  transition: all var(--transition-fast);
}

.header-search:focus-within {
  background: white;
  box-shadow: 0 0 0 3px var(--primary-100);
}

.header-search i {
  color: var(--slate-400);
}

.header-search input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  color: var(--slate-700);
}

.header-search input::placeholder {
  color: var(--slate-400);
}

.header-datetime {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--slate-100);
  border-radius: var(--border-radius-md);
  font-size: 13px;
  color: var(--slate-600);
}

.icon-btn {
  width: 40px;
  height: 40px;
  background: var(--slate-100);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate-600);
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--slate-200);
  color: var(--slate-800);
}