/* ============================================
   Registration Page Styles
   ============================================ */

.registration-section {
    background-color: var(--color-bg);
    min-height: 100vh;
}

.registration-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.registration-container h1 {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-text-primary);
}

.registration-intro {
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Embedded Registration Form Styles */
.registration-embed {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.registration-iframe {
    width: 100%;
    min-height: 800px;
    border: none;
    border-radius: var(--radius-md);
    background-color: #fff;
    display: block;
}

/* Responsive iframe */
@media (max-width: 768px) {
    .registration-iframe {
        min-height: 600px;
    }
}

@media (max-width: 480px) {
    .registration-iframe {
        min-height: 500px;
    }
}

.embed-note {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.embed-note a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-normal);
}

.embed-note a:hover {
    color: var(--color-secondary);
}

/* ============================================
   Registration Form Styles
   ============================================ */

.registration-form {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 600;
}

.form-section-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-row-three {
    grid-template-columns: repeat(3, 1fr);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.required {
    color: var(--color-secondary);
    margin-left: 2px;
}

.optional {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: normal;
    margin-left: 0.25rem;
    font-style: italic;
}

.form-group input,
.form-group select {
    padding: 0.75rem 1rem;
    background-color: var(--color-bg);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: all var(--transition-normal);
}

.form-group input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.6;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.1);
}

.form-group input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.6;
}

.form-group input:invalid:not(:placeholder-shown),
.form-group select:invalid:not(:placeholder-shown),
.form-group input.error,
.form-group select.error {
    border-color: var(--color-secondary);
}

.form-group input:valid:not(:placeholder-shown) {
    border-color: rgba(0, 255, 255, 0.3);
}

.error-message {
    color: var(--color-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: none;
}

.error-message.show {
    display: block;
}

.form-hint {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* Checkbox Styles */
.checkbox-group {
    margin-bottom: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    gap: 0.75rem;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
    flex-shrink: 0;
}

.checkbox-label span {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.checkbox-label a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.checkbox-label a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* File Upload Styles */
.file-upload-wrapper {
    position: relative;
}

.file-upload-wrapper input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.file-upload-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-bg);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--color-text-primary);
}

.file-upload-label:hover {
    background-color: var(--color-surface);
    border-color: var(--color-primary);
}

.file-icon {
    font-size: 1.2rem;
}

.file-name {
    display: block;
    margin-top: 0.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.file-name.uploading {
    color: var(--color-primary);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

.upload-rules {
    background-color: var(--color-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: 0.5rem;
}

.upload-rules ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.upload-rules li {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.upload-rules li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.upload-rules li:last-child {
    margin-bottom: 0;
}

/* Events Selection Grid */
.events-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.event-checkbox-card {
    position: relative;
    background-color: var(--color-bg);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.event-checkbox-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 255, 255, 0.2);
}

.event-checkbox-card.selected {
    border-color: var(--color-primary);
    background-color: rgba(0, 255, 255, 0.05);
    box-shadow: 0 0 0 2px rgba(0, 255, 255, 0.2);
}

.event-checkbox-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.event-checkbox-card .event-name {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.event-checkbox-card .event-category {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.event-checkbox-card .event-type {
    font-size: 0.8rem;
    color: var(--color-primary);
    margin-top: 0.5rem;
}

/* Payment Information */
.payment-info {
    margin-top: var(--spacing-md);
}

.payment-summary {
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.summary-row:last-child {
    border-bottom: none;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-primary);
}

.summary-row span:first-child {
    color: var(--color-text-secondary);
}

.summary-row span:last-child {
    color: var(--color-text-primary);
    font-weight: 500;
}

.payment-method {
    margin-bottom: var(--spacing-lg);
}

.payment-method p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.payment-method strong {
    color: var(--color-text-primary);
}

.qr-code-container {
    display: flex;
    justify-content: center;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
}

.qr-code {
    max-width: 250px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.1rem;
    min-width: 250px;
}

.btn-loader {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.registration-note {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    padding: var(--spacing-md);
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    line-height: 1.6;
}

.registration-note strong {
    color: var(--color-primary);
}

.registration-note a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.registration-note a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 992px) {
    .registration-container {
        max-width: 100%;
        padding: var(--spacing-md);
    }
    
    .events-selection-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .registration-section {
        padding-top: calc(var(--spacing-lg) + 80px) !important;
    }

    .registration-container {
        padding: var(--spacing-md);
    }

    .registration-container h1 {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }

    .registration-intro {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    .registration-form {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .form-row-three {
        grid-template-columns: 1fr;
    }
    
    .events-selection-grid {
        grid-template-columns: 1fr;
    }
    
    .form-section-title {
        font-size: 1.3rem;
    }
    
    .btn-large {
        width: 100%;
        max-width: 100%;
    }

    .registration-note {
        font-size: 0.85rem;
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .registration-container {
        padding: var(--spacing-sm);
    }

    .registration-container h1 {
        font-size: 1.8rem;
    }

    .registration-form {
        padding: var(--spacing-sm);
    }
    
    .form-section {
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-md);
    }
    
    .qr-code {
        max-width: 200px;
    }
}