/* ==============================================
   Contact Page
   ============================================== */

/* --- Form Wrapper --- */
.contact-form-wrapper {
    max-width: 720px;
    margin: 0 auto;
}

/* --- Form Section --- */
.form-section {
    margin-bottom: var(--space-3xl);
}

.form-section-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.form-section-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.form-section-title .required {
    color: #e53e3e;
    margin-left: 4px;
}

.form-section-desc {
    font-size: var(--font-size-base);
    color: var(--text-tertiary);
}

/* --- Form Grid --- */
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.form-grid-2col {
    grid-template-columns: repeat(2, 1fr);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

/* --- Label --- */
.form-label {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
}

.form-label .required {
    color: #e53e3e;
    margin-left: 2px;
}

/* --- Inputs --- */
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    font-size: var(--font-size-base);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 3px rgba(224, 224, 224, 0.08);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-tertiary);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-textarea {
    min-height: 160px;
    resize: vertical;
}

/* --- Hint --- */
.form-hint {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: 1.5;
    margin-top: var(--space-xs);
}

/* --- Error --- */
.form-error {
    font-size: var(--font-size-sm);
    color: #e53e3e;
    display: none;
}

.form-group.error .form-input,
.form-group.error .form-select,
.form-group.error .form-textarea {
    border-color: #e53e3e;
}

.form-group.error .form-error {
    display: block;
}

#privacy-error {
    display: none;
    margin-top: var(--space-xs);
}

#privacy-error.show {
    display: block;
}

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

.file-input {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

.file-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.25rem;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--input-bg);
    border: 1px dashed var(--input-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.file-label:hover {
    border-color: var(--text-tertiary);
    background: var(--bg-tertiary);
}

.file-label i {
    font-size: 16px;
    color: var(--text-tertiary);
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.file-item-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 70%;
}

.file-item-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.file-item-size {
    color: var(--text-tertiary);
    white-space: nowrap;
}

.file-item-remove {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 2px;
    font-size: 14px;
    line-height: 1;
    transition: color var(--transition-fast);
}

.file-item-remove:hover {
    color: #e53e3e;
}

/* --- File Size Bar --- */
.file-size-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    margin-top: var(--space-sm);
    overflow: hidden;
}

.file-size-fill {
    height: 100%;
    width: 0%;
    background: var(--accent);
    border-radius: 2px;
    transition: width var(--transition-base);
}

.file-size-text {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-xs);
}

/* --- Form Footer --- */
.form-footer {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
}

/* --- Checkbox --- */
.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
}

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

.checkbox-mark {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    border: 1px solid var(--input-border);
    border-radius: 3px;
    background: var(--input-bg);
    position: relative;
    transition: all var(--transition-fast);
}

.form-checkbox input[type="checkbox"]:checked + .checkbox-mark {
    background: var(--accent);
    border-color: var(--accent);
}

.form-checkbox input[type="checkbox"]:checked + .checkbox-mark::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 5px;
    height: 9px;
    border: solid var(--bg-primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-text {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.privacy-link {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

.privacy-link:hover {
    color: var(--accent-hover);
}

/* --- Submit --- */
.form-submit {
    margin-top: var(--space-xl);
    text-align: center;
}

.form-submit .btn {
    min-width: 200px;
    width: 100%;
    padding: 1rem 2rem;
}

/* --- Privacy Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.7);
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    max-width: 520px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-xl);
}

.privacy-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-lg);
}

.privacy-table th,
.privacy-table td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.privacy-table th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
}

.privacy-table td:first-child {
    white-space: nowrap;
    color: var(--text-secondary);
    width: 100px;
}

.privacy-table td:last-child {
    color: var(--text-primary);
}

.privacy-notice {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .form-section-title {
        font-size: var(--font-size-xl);
    }

    .form-grid-2col {
        grid-template-columns: 1fr;
    }

    .form-submit .btn {
        min-width: unset;
    }
}