:root {
    --primary: #2c3e50;
    --primary-hover: #1a252f;
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --text: #2c3e50;
    --text-secondary: #7f8c8d;
    --border: #ecf0f1;
    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --radius: 8px;
    --shadow: 0 4px 15px rgba(0,0,0,0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    background: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    text-align: center;
}

.btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-success { background: var(--success); }
.btn-success:hover { background: #219653; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #c0392b; }
.btn-secondary { background: #95a5a6; }
.btn-secondary:hover { background: #7f8c8d; }

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #ffffff;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}

/* Password Toggle Eyeball Styling */
.password-toggle-wrap {
    position: relative;
    width: 100%;
}

.password-toggle-wrap .form-control {
    padding-right: 45px;
}

.password-toggle-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: #7f8c8d;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
    user-select: none;
}

.password-toggle-btn:hover {
    color: var(--primary);
}

.password-toggle-btn svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.alert {
    padding: 14px 18px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.alert-success { background: #d4edda; color: #155724; border-left: 4px solid var(--success); }
.alert-error { background: #f8d7da; color: #721c24; border-left: 4px solid var(--danger); }
.alert-warning { background: #fff3cd; color: #856404; border-left: 4px solid var(--warning); }
.alert-info { background: #d1ecf1; color: #0c5460; border-left: 4px solid var(--info); }

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-secondary { background: #e2e8f0; color: #475569; }

/* Filter Tabs Component */
.filter-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border);
    padding-bottom: 8px;
    overflow-x: auto;
}

.filter-tab-btn {
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    background: none;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.filter-tab-btn:hover {
    color: var(--primary);
    background: #e2e8f0;
}

.filter-tab-btn.active {
    color: #ffffff;
    background: var(--primary);
}

/* Pagination Component */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 25px;
}

.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 10px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    color: var(--text);
    background: #ffffff;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

.pagination a:hover {
    background: var(--bg);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination span.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.pagination .disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Footer Component */
.footer {
    margin-top: 50px;
    padding: 30px 20px;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.footer a:hover {
    text-decoration: underline;
}