/* CBA Email System - Styles */

:root {
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --secondary: #64748b;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --light: #f8fafc;
    --dark: #1e293b;
    --border: #e2e8f0;
    --sidebar-width: 240px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.5;
}

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

.sidebar {
    width: var(--sidebar-width);
    background: var(--dark);
    color: white;
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.sidebar-header span {
    font-size: 0.875rem;
    opacity: 0.7;
}

.nav-menu {
    list-style: none;
    padding: 1rem 0;
    flex: 1;
}

.nav-menu li a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.2s;
}

.nav-menu li a:hover,
.nav-menu li.active a {
    background: rgba(255,255,255,0.1);
    color: white;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.875rem;
}

.sidebar-footer span {
    display: block;
    opacity: 0.7;
    margin-bottom: 0.5rem;
}

.logout-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
}

.logout-link:hover {
    color: white;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
}

.stat-card .subtitle {
    font-size: 0.75rem;
    color: var(--secondary);
    margin-top: 0.25rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--light);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--secondary);
}

tr:hover {
    background: var(--light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

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

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-text {
    font-size: 0.875rem;
    color: var(--secondary);
    margin-top: 0.25rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    transition: opacity 0.3s;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.login-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

.login-card h1 {
    text-align: center;
    margin-bottom: 0.5rem;
}

.login-card .subtitle {
    text-align: center;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.login-card .btn {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.pagination a, .pagination span {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    text-decoration: none;
    color: var(--dark);
}

.pagination a:hover {
    background: var(--light);
}

.pagination .active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Actions */
.actions {
    display: flex;
    gap: 0.5rem;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.quick-action {
    background: white;
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    color: var(--dark);
    transition: all 0.2s;
}

.quick-action:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.quick-action h4 {
    margin-bottom: 0.5rem;
}

.quick-action p {
    font-size: 0.875rem;
    color: var(--secondary);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 1.5rem;
    gap: 0.25rem;
}

.tab-btn {
    padding: 0.75rem 1.25rem;
    border: none;
    background: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--dark);
    background: var(--light);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

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

/* Color Picker */
.color-picker-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.color-picker-group input[type="color"] {
    width: 50px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px;
    cursor: pointer;
}

.color-preview {
    display: inline-block;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    border: 1px solid var(--border);
    vertical-align: middle;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

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

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