:root {
    --primary-dark: #1a2a6c;
    --primary-medium: #2a3f8c;
    --primary-light: #3a5ca8;
    --accent: #4a7cbf;
    --success: #27ae60;
    --warning: #f39c12;
    --error: #e74c3c;
    --info: #3498db;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f0f4f8;
    --border-color: #e0e6ed;
}

/* Registration Forms */
.ssv-registration-form,
.ssv-login-form {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.form-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
    color: white;
    padding: 30px;
    text-align: center;
}

.form-header h2 {
    margin: 0 0 10px;
    font-size: 28px;
}

.form-header p {
    margin: 0;
    opacity: 0.9;
}

.form-section {
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
}

.form-section h3 {
    color: var(--primary-dark);
    margin: 0 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-light);
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 20px;
    flex: 1;
}

.form-group.half {
    flex: 1;
}

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

.form-group input:not([type="checkbox"]),
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(42,63,140,0.1);
}

.form-group input[type="file"] {
    padding: 10px;
    background: var(--bg-light);
    border: 2px dashed var(--primary-light);
    cursor: pointer;
}

.form-group select[multiple] {
    min-height: 150px;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-light);
    font-size: 12px;
}

.agreement-section {
    background: var(--bg-light);
}

.agreement-download {
    background: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 20px;
    border: 2px dashed var(--primary-light);
}

.download-agreement-btn {
    display: inline-block;
    background: var(--primary-dark);
    color: white;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    margin-top: 10px;
    transition: background 0.3s;
}

.download-agreement-btn:hover {
    background: var(--primary-medium);
    color: white;
}

.agreement-instruction {
    margin-top: 15px;
    font-size: 13px;
    color: var(--warning);
    background: #fff3cd;
    padding: 10px;
    border-radius: 5px;
}

.checkbox-group {
    margin-top: 20px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    padding: 15px;
    background: white;
    border-radius: 8px;
    cursor: pointer;
}

.checkbox-label input {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    margin-top: 2px;
}

.ssv-submit-btn {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
    color: white;
    padding: 14px 28px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: calc(100% - 60px);
    margin: 20px 30px 30px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.ssv-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26,42,108,0.3);
}

.ssv-submit-btn.small {
    width: auto;
    margin: 0;
    padding: 8px 20px;
}

.login-links {
    padding: 20px 30px 30px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: var(--bg-light);
}

.register-link {
    display: inline-block;
    margin: 10px 10px 0;
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 500;
}

/* Dashboard Styles */
.ssv-dashboard,
.ssv-admin-dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.ssv-dashboard-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
    color: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
}

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

.ssv-dashboard-header h2 {
    margin: 0 0 5px;
}

.ssv-dashboard-header p {
    margin: 0;
    opacity: 0.9;
}

.ssv-logout-btn {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.3s;
}

.ssv-logout-btn:hover {
    background: rgba(255,255,255,0.3);
    color: white;
}

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

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h3 {
    margin: 0 0 10px;
    color: var(--text-dark);
    font-size: 16px;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-dark);
    margin: 0;
}

.ssv-dashboard-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.ssv-dashboard-widget {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.ssv-dashboard-widget.full-width {
    grid-column: 1 / -1;
}

.ssv-dashboard-widget h3 {
    margin: 0 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-light);
    color: var(--primary-dark);
}

.widget-placeholder {
    text-align: center;
    color: var(--text-light);
    padding: 40px;
}

.profile-info {
    display: flex;
    gap: 20px;
}

.profile-photo img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
}

.profile-details {
    flex: 1;
}

.profile-details p {
    margin: 5px 0;
}

.students-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.student-card {
    background: var(--bg-light);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-light);
}

.student-card h4 {
    margin: 0 0 10px;
    color: var(--primary-dark);
}

.view-progress-btn {
    background: var(--primary-light);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

/* Admin Dashboard */
.ssv-admin-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-light);
    transition: all 0.3s;
}

.tab-btn.active {
    color: var(--primary-dark);
    border-bottom: 2px solid var(--primary-dark);
    margin-bottom: -2px;
}

.tab-content {
    display: none;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--primary-dark);
    color: white;
    font-weight: 500;
}

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

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.pending {
    background: var(--warning);
    color: #fff;
}

.status-badge.approved {
    background: var(--success);
    color: #fff;
}

.action-btn {
    padding: 4px 8px;
    margin: 0 2px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-size: 12px;
}

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

.action-btn.reject {
    background: var(--error);
    color: white;
}

.view-link {
    color: var(--primary-dark);
    text-decoration: none;
}

.view-link:hover {
    text-decoration: underline;
}

/* Messages */
.ssv-message,
.ssv-form-message,
.ssv-admin-message {
    padding: 12px;
    margin: 15px 30px;
    border-radius: 6px;
    font-size: 14px;
}

.ssv-message.success,
.ssv-form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.ssv-message.error,
.ssv-form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.ssv-message.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.ssv-message.warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .ssv-dashboard-content {
        grid-template-columns: 1fr;
    }
    
    .dashboard-header-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .profile-info {
        flex-direction: column;
        text-align: center;
    }
    
    .profile-photo img {
        margin: 0 auto;
    }
    
    .ssv-admin-tabs {
        flex-wrap: wrap;
    }
    
    .data-table {
        display: block;
        overflow-x: auto;
    }
}