:root {
    --bg-dark: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    /* Admin specific accents (Teal/Emerald) */
    --primary-color: #10b981; /* Emerald */
    --primary-hover: #059669;
    --accent-color: #14b8a6; /* Teal */
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --pending: #3b82f6;
    --hover-bg: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(0, 0, 0, 0.2);
    --modal-bg: rgba(0, 0, 0, 0.6);
    --sidebar-bg: rgba(255, 255, 255, 0.02);
    --table-border: rgba(255, 255, 255, 0.03);
}

body.light-mode {
    --bg-dark: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.1);
    --hover-bg: rgba(0, 0, 0, 0.05);
    --input-bg: rgba(255, 255, 255, 0.9);
    --modal-bg: rgba(255, 255, 255, 0.4);
    --sidebar-bg: rgba(255, 255, 255, 0.6);
    --table-border: rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Orbs adapted for Admin (Greens/Teals) */
.background-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out alternate;
}

.orb-1 { width: 400px; height: 400px; background: var(--primary-color); top: -100px; left: -100px; }
.orb-2 { width: 500px; height: 500px; background: var(--accent-color); bottom: -200px; right: -100px; animation-delay: -5s; }
.orb-3 { width: 300px; height: 300px; background: #0f766e; top: 40%; left: 30%; animation-delay: -10s; }

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 30px) scale(1.1); }
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.text-secondary { color: var(--text-secondary); }

/* Layout */
.admin-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    height: 100vh;
    border-right: 1px solid var(--glass-border);
    border-radius: 0;
    display: flex;
    flex-direction: column;
    padding: 24px;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 8px;
}

.sidebar-header h2 {
    font-size: 1.2rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge {
    background: rgba(16, 185, 129, 0.2);
    color: var(--primary-color);
    font-size: 0.6rem;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.nav-item.active {
    background: linear-gradient(to right, rgba(16, 185, 129, 0.15), rgba(255,255,255,0));
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* Top Header */
.top-header {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    border-bottom: 1px solid var(--glass-border);
    border-radius: 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    padding: 8px 16px;
    border-radius: 20px;
    width: 300px;
}

.search-box input {
    background: transparent;
    border: none;
    color: white;
    outline: none;
    width: 100%;
    font-size: 0.9rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.icon-btn:hover { color: white; }

.notification-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--bg-dark);
}

.admin-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-left: 20px;
    border-left: 1px solid var(--glass-border);
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Dashboard Content */
.dashboard-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.page-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 4px;
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.kpi-card {
    padding: 24px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.kpi-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-emerald { background: rgba(16, 185, 129, 0.2); color: var(--primary-color); }
.icon-teal { background: rgba(20, 184, 166, 0.2); color: var(--accent-color); }
.icon-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }

.kpi-info h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 1.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.trend {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 2px 6px;
    border-radius: 4px;
}
.trend.up { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.trend.down { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

/* Table Section */
.table-container {
    border-radius: 20px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: var(--hover-bg);
}

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 16px;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.9rem;
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--table-border);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: var(--sidebar-bg);
}

/* Status Tags */
.status-tag {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

.status-pending { background: rgba(59, 130, 246, 0.2); color: var(--pending); border: 1px solid rgba(59, 130, 246, 0.3); }
.status-approved { background: rgba(16, 185, 129, 0.2); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.3); }
.status-cancelled { background: rgba(239, 68, 68, 0.2); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.3); }

/* Action Buttons */
.action-btns {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 12px;
    border-radius: 6px;
    border: none;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-approve {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}
.btn-approve:hover { background: var(--success); color: white; }

.btn-cancel {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}
.btn-cancel:hover { background: var(--danger); color: white; }

/* Responsive */
@media (max-width: 900px) {
    .sidebar { width: 80px; padding: 24px 12px; }
    .sidebar-header h2, .nav-item span { display: none; }
    .nav-item { justify-content: center; }
}

/* SPA Views */
.view-section {
    display: none;
    animation: fadeIn 0.3s ease;
}
.view-section.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Primary Button for Admin */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

/* Modal for Admin */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: var(--modal-bg);
    backdrop-filter: blur(5px);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000; opacity: 0; pointer-events: none;
    transition: opacity 0.3s ease;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal-content {
    width: 100%; max-width: 500px; padding: 40px; position: relative;
    transform: translateY(20px) scale(0.95); transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.modal-overlay.active .modal-content { transform: translateY(0) scale(1); }
.close-btn { position: absolute; top: 20px; right: 20px; background: none; border: none; color: var(--text-secondary); font-size: 24px; cursor: pointer; transition: color 0.3s ease; }
.close-btn:hover { color: white; }

.admin-form { display: flex; flex-direction: column; gap: 16px; margin-top: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.9rem; color: var(--text-secondary); }
.form-group input, .form-group select {
    background: var(--input-bg); border: 1px solid var(--glass-border); border-radius: 8px;
    padding: 10px 14px; color: var(--text-primary); outline: none; font-size: 0.95rem;
}
.form-group input:focus, .form-group select:focus { border-color: var(--primary-color); }
.form-group select option { background: var(--bg-dark); }

/* Calendar Styles */
.calendar-controls { display: flex; align-items: center; }
.calendar-container { padding: 20px; }
.calendar-header {
    display: grid; grid-template-columns: repeat(7, 1fr); text-align: center;
    font-weight: 600; color: var(--text-secondary); margin-bottom: 15px;
    padding-bottom: 10px; border-bottom: 1px solid var(--glass-border);
}
.calendar-grid {
    display: grid; grid-template-columns: repeat(7, 1fr); grid-auto-rows: minmax(100px, auto); gap: 10px;
}
.calendar-day {
    background: var(--input-bg); border: 1px solid var(--glass-border); border-radius: 12px;
    padding: 8px; display: flex; flex-direction: column; transition: background 0.3s ease;
}
.calendar-day:hover { background: var(--hover-bg); }
.calendar-day.empty { background: transparent; border: none; }
.calendar-day.today { border-color: var(--primary-color); box-shadow: 0 0 10px rgba(16, 185, 129, 0.2); }
.day-number { font-weight: 600; font-size: 0.9rem; margin-bottom: 8px; align-self: flex-end; }

.calendar-events { display: flex; flex-direction: column; gap: 4px; overflow-y: auto; max-height: 80px; }
.calendar-event {
    font-size: 0.75rem; padding: 4px 6px; border-radius: 4px; white-space: nowrap; overflow: hidden;
    text-overflow: ellipsis; background: rgba(16, 185, 129, 0.2); color: var(--primary-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}
.calendar-event.status-pending {
    background: rgba(245, 158, 11, 0.2); color: var(--warning); border-color: rgba(245, 158, 11, 0.3);
}

.calendar-event-more {
    font-size: 0.75rem; color: var(--text-secondary); text-align: center;
    padding: 4px; margin-top: 2px; cursor: pointer; border-radius: 4px;
    background: var(--hover-bg); transition: all 0.2s ease;
}

.calendar-event-more:hover {
    background: rgba(255, 255, 255, 0.1); color: var(--text-primary);
}

.calendar-events::-webkit-scrollbar { width: 4px; }
.calendar-events::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 4px; }

/* Language Selector */
.lang-selector {
    position: relative;
    display: inline-block;
    cursor: pointer;
    margin-right: 15px;
}
.lang-current {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    margin: 0;
    background: var(--hover-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: all 0.2s ease;
    cursor: pointer;
    flex-shrink: 0;
}
.lang-current:hover {
    background: var(--hover-bg);
}
.lang-flag {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    line-height: 1;
}
.lang-dropdown {
    position: absolute;
    top: 120%;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    min-width: 140px;
    display: none;
    flex-direction: column;
    padding: 8px;
    z-index: 1000;
}
.lang-selector:hover .lang-dropdown {
    display: flex;
}
.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.2s;
    font-size: 0.9rem;
}
.lang-option:hover {
    background: rgba(255, 255, 255, 0.1);
}