/**
 * Frontend styles for Student Certificate Verification.
 */

.scv-verify-container {
    max-width: 600px;
    margin: 40px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.scv-verify-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border: 1px solid #e8e8e8;
}

.scv-verify-header {
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    padding: 32px 30px;
    text-align: center;
    color: #ffffff;
}

.scv-verify-header h2 {
    margin: 0 0 8px;
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
}

.scv-verify-header p {
    margin: 0;
    font-size: 14px;
    opacity: 0.9;
    color: #ffffff;
}

.scv-verify-form {
    padding: 30px;
}

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

.scv-form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 600;
    color: #333333;
}

.scv-required {
    color: #dc3545;
}

.scv-form-group input[type="text"],
.scv-form-group input[type="date"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #d0d5dd;
    border-radius: 8px;
    font-size: 15px;
    color: #333333;
    background: #ffffff;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
}

.scv-form-group input[type="text"]:focus,
.scv-form-group input[type="date"]:focus {
    outline: none;
    border-color: #0d6efd;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.12);
}

.scv-verify-btn {
    width: 100%;
    padding: 14px 24px;
    background: #16a34a;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.scv-verify-btn:hover {
    background: #15803d;
}

.scv-verify-btn:active {
    transform: scale(0.98);
}

.scv-verify-btn:disabled {
    background: #86b89c;
    cursor: not-allowed;
}

/* Result area */
.scv-verify-result {
    padding: 0 30px 30px;
}

/* Error message */
.scv-error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-left: 4px solid #dc2626;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    color: #991b1b;
    font-size: 15px;
    font-weight: 500;
}

.scv-error-message .scv-error-icon {
    display: inline-block;
    margin-bottom: 10px;
    color: #dc2626;
}

/* Success card */
.scv-success-card {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-left: 4px solid #16a34a;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    animation: scvFadeIn 0.4s ease;
}

@keyframes scvFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scv-success-icon {
    color: #16a34a;
    margin-bottom: 12px;
}

.scv-success-title {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 700;
    color: #14532d;
}

.scv-success-subtitle {
    margin: 0 0 20px;
    font-size: 14px;
    color: #166534;
}

.scv-cert-details {
    background: #ffffff;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    text-align: left;
}

.scv-detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #e5e7eb;
}

.scv-detail-row:last-child {
    border-bottom: none;
}

.scv-detail-label {
    font-weight: 600;
    color: #555555;
}

.scv-detail-value {
    color: #111111;
    text-align: right;
}

.scv-cert-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.scv-btn {
    display: inline-block;
    padding: 12px 22px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: background 0.2s, transform 0.1s;
}

.scv-btn:active {
    transform: scale(0.97);
}

.scv-btn-view {
    background: #0d6efd;
    color: #ffffff;
}

.scv-btn-view:hover {
    background: #0a58ca;
}

.scv-btn-download {
    background: #16a34a;
    color: #ffffff;
}

.scv-btn-download:hover {
    background: #15803d;
}

.scv-cert-preview {
    margin-top: 20px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #d1d5db;
    background: #ffffff;
}

.scv-cert-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.scv-pdf-preview object {
    border: none;
}

/* Loading spinner */
.scv-loading {
    text-align: center;
    padding: 30px;
    color: #666666;
}

.scv-spinner {
    display: inline-block;
    width: 36px;
    height: 36px;
    border: 3px solid #e5e7eb;
    border-top-color: #0d6efd;
    border-radius: 50%;
    animation: scvSpin 0.8s linear infinite;
    margin-bottom: 10px;
}

@keyframes scvSpin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media screen and (max-width: 600px) {
    .scv-verify-container {
        margin: 20px auto;
        padding: 0 15px;
    }

    .scv-verify-header {
        padding: 24px 20px;
    }

    .scv-verify-header h2 {
        font-size: 20px;
    }

    .scv-verify-form {
        padding: 20px;
    }

    .scv-verify-result {
        padding: 0 20px 20px;
    }

    .scv-detail-row {
        flex-direction: column;
        gap: 2px;
    }

    .scv-detail-value {
        text-align: left;
    }

    .scv-cert-actions {
        flex-direction: column;
    }

    .scv-btn {
        width: 100%;
        text-align: center;
    }
}