:root {
    --bg-color: #0f172a;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-color: #e2e8f0;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #0ea5e9;
}

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(236, 72, 153, 0.1) 0px, transparent 50%);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2, h3, h4, h5, h6 {
    color: #fff;
    font-weight: 600;
    margin-top: 0;
}

/* Glassmorphism Card */
.glass-panel, .login-container, .sidebar, .main-content, .legend, .modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    padding: 24px;
    color: var(--text-color);
}

/* Navbar */
.navbar {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar a {
    color: var(--text-color);
    margin-left: 20px;
    font-weight: 500;
}

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

/* Forms & Inputs */
input[type="text"], input[type="password"], input[type="number"], select, textarea {
    width: 100%;
    padding: 12px;
    margin: 8px 0 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: #fff;
    font-family: inherit;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(0, 0, 0, 0.3);
}

button, .btn {
    background-color: var(--primary);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: transform 0.1s, background-color 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

button:hover, .btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

.btn-delete { background-color: var(--danger); }
.btn-delete:hover { background-color: #dc2626; }
.btn-edit { background-color: var(--warning); color: #fff; }
.btn-edit:hover { background-color: #d97706; }

/* Login Specific */
.login-container {
    max-width: 400px;
    margin: 80px auto;
    text-align: center;
}

/* Admin Panel Layout */
.admin-panel {
    display: flex;
    gap: 24px;
}

.sidebar {
    width: 300px;
    flex-shrink: 0;
}

.main-content {
    flex: 1;
    overflow-x: auto;
}

.generated-creds {
    background: rgba(0, 255, 0, 0.1);
    border: 1px dashed var(--success);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
}

/* Calendar Grid */
.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.calendar-controls h3 {
    margin: 0;
    font-size: 1.5rem;
}

.week-grid {
    display: grid;
    grid-template-columns: 80px repeat(7, 1fr);
    gap: 4px;
    /* Remove background color to let glass shine through */
    background: transparent;
    border: none;
}

.day-header, .time-label {
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 5px;
    text-align: center;
    font-weight: 600;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.time-label {
    grid-column: 1;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.slot {
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    text-align: center;
    font-size: 11px;
    cursor: pointer;
    min-height: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 4px;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.slot:hover {
    transform: scale(1.05);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* Slot Status Colors - Modern Neon */
.slot.green { 
    background: rgba(16, 185, 129, 0.2); 
    border-color: rgba(16, 185, 129, 0.4);
    color: #6ee7b7;
}
.slot.yellow { 
    background: rgba(245, 158, 11, 0.2); 
    border-color: rgba(245, 158, 11, 0.4);
    color: #fcd34d;
}
.slot.orange { 
    background: rgba(234, 88, 12, 0.2); 
    border-color: rgba(234, 88, 12, 0.4);
    color: #fdba74;
}
.slot.red { 
    background: rgba(239, 68, 68, 0.2); 
    border-color: rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}
.slot.gray { 
    background: rgba(255, 255, 255, 0.02); 
    color: var(--text-muted);
}
.slot.blue {
    background: rgba(59, 130, 246, 0.3);
    border-color: #3b82f6;
    color: #fff;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

.slot.booked-by-me {
    border: 1px solid #60a5fa;
    background: rgba(37, 99, 235, 0.4);
}

/* Tables */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

th {
    text-align: left;
    padding: 12px;
    color: var(--text-muted);
    font-weight: 500;
    border-bottom: 1px solid var(--glass-border);
}

td {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 12px;
}

tr td:first-child { border-top-left-radius: 8px; border-bottom-left-radius: 8px; }
tr td:last-child { border-top-right-radius: 8px; border-bottom-right-radius: 8px; }

/* Modal */
.modal {
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: #1e293b; /* Solid dark background for readability on top of glass */
    border: 1px solid var(--glass-border);
    color: white;
}

.close {
    color: var(--text-muted);
}
.close:hover {
    color: white;
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid transparent;
}
.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}
.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

/* Legend */
.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
    align-items: center;
}
.legend-item {
    font-size: 0.9rem;
    color: var(--text-color);
}
.color-box {
    box-shadow: 0 0 5px rgba(0,0,0,0.2);
}

/* Stats Dashboard */
.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.stat-card h4 {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

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

.ranking-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.ranking-item:last-child {
    border-bottom: none;
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
    margin-right: 10px;
    color: #1e293b;
}

.rank-1 { background: linear-gradient(135deg, #ffd700, #fdb931); box-shadow: 0 0 10px rgba(255, 215, 0, 0.4); }
.rank-2 { background: linear-gradient(135deg, #e0e0e0, #bdbdbd); box-shadow: 0 0 10px rgba(192, 192, 192, 0.4); }
.rank-3 { background: linear-gradient(135deg, #cd7f32, #a0522d); box-shadow: 0 0 10px rgba(205, 127, 50, 0.4); }

.stat-value {
    font-weight: bold;
    color: var(--primary);
}

.stat-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Special Shift Statuses */
.slot.urgent {
    border-color: #f59e0b !important;
    background: rgba(245, 158, 11, 0.15) !important;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.3);
}

.slot.locked {
    background: repeating-linear-gradient(
        45deg,
        rgba(0,0,0,0.2),
        rgba(0,0,0,0.2) 10px,
        rgba(0,0,0,0.3) 10px,
        rgba(0,0,0,0.3) 20px
    ) !important;
    border-color: #475569 !important;
    cursor: not-allowed;
    opacity: 0.7;
}

.slot-icon {
    position: absolute;
    top: 2px;
    right: 2px;
    font-size: 10px;
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 10px 15px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.2s;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.tab-btn.active {
    background: var(--primary);
    color: white;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Chat & Ticket Styles */
.message-list {
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

.msg-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 3px solid var(--primary);
}

.msg-item.unread {
    background: rgba(59, 130, 246, 0.1);
    border-left-color: #f59e0b;
}

.ticket-status-open { color: #10b981; }
.ticket-status-closed { color: #ef4444; }

/* Batch Selection Highlight */
.slot.selected-batch {
    background-color: rgba(59, 130, 246, 0.6) !important;
    border: 2px solid #60a5fa !important;
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
    transform: scale(0.98);
}

/* Custom Tooltip */
#booking-tooltip {
    display: none;
    position: fixed;
    z-index: 2000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 12px;
    color: white;
    font-size: 0.85rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    pointer-events: none; /* Let mouse events pass through */
    max-width: 250px;
    min-width: 150px;
}

#booking-tooltip h4 {
    margin: 0 0 8px 0;
    font-size: 0.9rem;
    color: var(--primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 4px;
}

#booking-tooltip ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .navbar {
        flex-direction: column;
        gap: 10px;
        padding: 15px;
    }

    .navbar div {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        width: 100%;
    }

    .navbar a {
        margin: 0;
        display: block;
        padding: 5px 0;
    }

    .admin-panel {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    /* Wrapper for calendar scroll */
    .calendar-scroll-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px;
    }
    
    .week-grid {
        /* Force horizontal scroll on mobile */
        min-width: 800px; 
    }
    
    #calendar {
        /* No overflow on parent, let wrapper handle it */
    }
    
    /* Make all tables scrollable */
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .stats-dashboard {
        grid-template-columns: 1fr;
    }

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

    /* Modal adjustments */
    .modal-content {
        width: 95%;
        margin: 20px auto;
    }

    /* Support Tab Mobile */
    .support-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .ticket-history {
        border-left: none !important;
        padding-left: 0 !important;
        border-top: 1px solid rgba(255,255,255,0.1);
        padding-top: 20px;
    }
}

/* Small adjustments for very small screens */
@media (max-width: 480px) {
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.2rem; }
    
    .tab-btn {
        padding: 8px 10px;
        font-size: 0.9rem;
    }
}