/* ============================================
   SmartTool - Student Verification System
   Frontend Styles v4.0.0
   ============================================ */

/* === Google Font Import === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* === CSS Variables === */
:root {
    --cvs-primary: #1a237e;
    --cvs-primary-light: #283593;
    --cvs-primary-dark: #0d1452;
    --cvs-accent: #ffc107;
    --cvs-accent-dark: #f9a825;
    --cvs-success: #28a745;
    --cvs-danger: #dc3545;
    --cvs-warning: #ff9800;
    --cvs-text: #333;
    --cvs-text-light: #666;
    --cvs-bg: #f5f7fa;
    --cvs-white: #ffffff;
    --cvs-shadow: 0 8px 32px rgba(26, 35, 126, 0.12);
    --cvs-shadow-hover: 0 12px 40px rgba(26, 35, 126, 0.2);
    --cvs-radius: 12px;
    --cvs-radius-sm: 8px;
    --cvs-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Login Pages Common === */
.cvs-login-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.cvs-login-card {
    background: var(--cvs-white);
    border-radius: var(--cvs-radius);
    box-shadow: var(--cvs-shadow);
    padding: 40px;
    width: 100%;
    max-width: 450px;
    position: relative;
    overflow: hidden;
}

.cvs-login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--cvs-primary), var(--cvs-accent));
}

.cvs-login-header {
    text-align: center;
    margin-bottom: 30px;
}

.cvs-login-header h2 {
    color: var(--cvs-primary);
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 8px 0;
    letter-spacing: -0.5px;
}

.cvs-brand-tag {
    color: var(--cvs-text-light);
    font-size: 13px;
    margin: 0;
    font-weight: 400;
}

/* === Form Styles === */
.cvs-login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.cvs-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cvs-form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--cvs-text);
}

.cvs-form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: var(--cvs-radius-sm);
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: var(--cvs-transition);
    box-sizing: border-box;
    background: #fafafa;
}

.cvs-form-input:focus {
    border-color: var(--cvs-primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
    outline: none;
    background: var(--cvs-white);
}

/* === Buttons === */
.cvs-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--cvs-radius-sm);
    font-size: 15px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: var(--cvs-transition);
    border: none;
    text-decoration: none;
}

.cvs-btn-primary {
    background: linear-gradient(135deg, var(--cvs-primary), var(--cvs-primary-light));
    color: var(--cvs-white);
    width: 100%;
    box-shadow: 0 4px 15px rgba(26, 35, 126, 0.3);
}

.cvs-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 35, 126, 0.4);
    color: var(--cvs-white);
}

.cvs-btn-logout {
    background: #f5f5f5;
    color: var(--cvs-text);
    padding: 8px 16px;
    font-size: 13px;
}

.cvs-btn-logout:hover {
    background: #e0e0e0;
    color: var(--cvs-text);
}

.cvs-btn-download {
    background: linear-gradient(135deg, var(--cvs-success), #1b8a37);
    color: var(--cvs-white);
    padding: 14px 28px;
    font-size: 16px;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.cvs-btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
    color: var(--cvs-white);
}

/* === Alerts === */
.cvs-alert {
    padding: 14px 18px;
    border-radius: var(--cvs-radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
}

.cvs-alert p {
    margin: 0;
}

.cvs-alert-danger {
    background: #ffedef;
    border-left: 4px solid var(--cvs-danger);
    color: #721c24;
}

.cvs-alert-warning {
    background: #fff8e1;
    border-left: 4px solid var(--cvs-warning);
    color: #856404;
}

.cvs-alert-success {
    background: #e8f5e9;
    border-left: 4px solid var(--cvs-success);
    color: #155724;
}

/* === Badges === */
.cvs-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.cvs-badge-success {
    background: #e8f5e9;
    color: var(--cvs-success);
}

.cvs-badge-danger {
    background: #ffedef;
    color: var(--cvs-danger);
}

.cvs-badge-warning {
    background: #fff8e1;
    color: #e65100;
}

.cvs-badge-default {
    background: #f5f5f5;
    color: var(--cvs-text-light);
}

/* === Dashboard === */
.cvs-dashboard-wrap {
    max-width: 800px;
    margin: 30px auto;
    padding: 0 20px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.cvs-dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.cvs-dashboard-header h2 {
    color: var(--cvs-primary);
    font-size: 24px;
    font-weight: 700;
    margin: 0;
}

.cvs-dashboard-card {
    background: var(--cvs-white);
    border-radius: var(--cvs-radius);
    box-shadow: var(--cvs-shadow);
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.cvs-dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--cvs-primary), var(--cvs-accent));
}

/* === Student Profile === */
.cvs-student-profile {
    display: flex;
    align-items: center;
    gap: 25px;
    padding-bottom: 25px;
    margin-bottom: 25px;
    border-bottom: 1px solid #eee;
}

.cvs-student-photo-container { flex-shrink: 0; }

.cvs-student-photo {
    width: 100px;
    height: 120px;
    object-fit: cover;
    border-radius: var(--cvs-radius-sm);
    border: 3px solid var(--cvs-primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.cvs-student-photo-placeholder {
    width: 100px;
    height: 120px;
    background: linear-gradient(135deg, #e8eaf6, #c5cae9);
    border-radius: var(--cvs-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    border: 3px solid var(--cvs-primary);
}

.cvs-student-name-section h3 {
    color: var(--cvs-primary);
    font-size: 22px;
    margin: 0 0 8px 0;
}

/* === Details Grid === */
.cvs-student-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.cvs-detail-item {
    background: #f8f9ff;
    padding: 14px 16px;
    border-radius: var(--cvs-radius-sm);
    border-left: 3px solid var(--cvs-primary);
}

.cvs-detail-label {
    display: block;
    font-size: 12px;
    color: var(--cvs-text-light);
    font-weight: 500;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cvs-detail-value {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--cvs-text);
}

/* === Result View === */
.cvs-result-wrap {
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.cvs-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.cvs-result-header h2 {
    color: var(--cvs-primary);
    font-size: 24px;
    font-weight: 700;
    margin: 0;
}

.cvs-result-card {
    background: var(--cvs-white);
    border-radius: var(--cvs-radius);
    box-shadow: var(--cvs-shadow);
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.cvs-result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--cvs-primary), var(--cvs-accent));
}

.cvs-result-student-info {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.cvs-result-photo {
    width: 80px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--cvs-radius-sm);
    border: 2px solid var(--cvs-primary);
    flex-shrink: 0;
}

.cvs-result-student-details h3 {
    color: var(--cvs-primary);
    font-size: 20px;
    margin: 0 0 10px 0;
}

.cvs-result-student-details p {
    margin: 4px 0;
    font-size: 14px;
    color: var(--cvs-text);
}

/* === Marks Table === */
.cvs-marks-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    border-radius: var(--cvs-radius-sm);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.cvs-marks-table thead th {
    background: linear-gradient(135deg, var(--cvs-primary), var(--cvs-primary-light));
    color: var(--cvs-white);
    padding: 12px 15px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cvs-marks-table tbody td {
    padding: 10px 15px;
    text-align: center;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.cvs-marks-table tbody tr:nth-child(even) {
    background: #f8f9ff;
}

.cvs-marks-table tbody tr:hover {
    background: #e8eaf6;
}

.cvs-marks-table tfoot td {
    background: #e8eaf6;
    padding: 12px 15px;
    font-weight: 700;
    text-align: center;
    color: var(--cvs-primary);
}

.cvs-marks-total td {
    font-size: 15px !important;
}

.cvs-text-success { color: var(--cvs-success); font-weight: 600; }
.cvs-text-danger { color: var(--cvs-danger); font-weight: 600; }

/* === Result Summary === */
.cvs-result-summary {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
    margin: 25px 0;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9ff, #e8eaf6);
    border-radius: var(--cvs-radius-sm);
}

.cvs-summary-item {
    text-align: center;
}

.cvs-summary-label {
    display: block;
    font-size: 12px;
    color: var(--cvs-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.cvs-summary-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--cvs-primary);
}

/* === Marksheet Download === */
.cvs-marksheet-download {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

/* === Responsive === */
@media (max-width: 768px) {
    .cvs-login-card {
        padding: 25px;
        margin: 10px;
    }
    
    .cvs-student-profile {
        flex-direction: column;
        text-align: center;
    }
    
    .cvs-student-details-grid {
        grid-template-columns: 1fr;
    }
    
    .cvs-result-student-info {
        flex-direction: column;
        text-align: center;
    }
    
    .cvs-result-summary {
        flex-direction: column;
    }
    
    .cvs-dashboard-header,
    .cvs-result-header {
        flex-direction: column;
        text-align: center;
    }
    
    .cvs-marks-table {
        font-size: 12px;
    }
    
    .cvs-marks-table thead th,
    .cvs-marks-table tbody td {
        padding: 8px 6px;
    }
}

@media (max-width: 480px) {
    .cvs-student-photo {
        width: 80px;
        height: 96px;
    }
    
    .cvs-student-photo-placeholder {
        width: 80px;
        height: 96px;
        font-size: 30px;
    }
}