/**
 * Marmon/Keystone RFQ Form Styles
 * Matches the original form design from marmonkeystone.com/dynamic-rfq
 */

/* CSS Variables */
.rfq-container {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #102a43;
    --accent: #3182ce;
    --success: #38a169;
    --warning: #d69e2e;
    --danger: #e53e3e;
    --gray-50: #f7fafc;
    --gray-100: #edf2f7;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e0;
    --gray-400: #a0aec0;
    --gray-500: #718096;
    --gray-600: #4a5568;
    --gray-700: #2d3748;
    --gray-800: #1a202c;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
}

.rfq-container {
    max-width: 800px;
    margin: 30px auto;
    padding: 0 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--gray-700);
    line-height: 1.5;
    font-size: 14px;
}

.rfq-container *,
.rfq-container *::before,
.rfq-container *::after {
    box-sizing: border-box;
}

.rfq-header {
    text-align: center;
    margin-bottom: 24px;
}

.rfq-header h1 {
    color: var(--primary);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.rfq-header p {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin: 0;
}

.rfq-form {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

/* Sections */
.form-section {
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
}

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

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.section-number {
    width: 28px;
    height: 28px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    margin-right: 10px;
    flex-shrink: 0;
    line-height: 1;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.section-subtitle {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-left: 38px;
    margin-top: -12px;
    margin-bottom: 16px;
}

/* Form Layout */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.form-row:last-child {
    margin-bottom: 0;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.form-label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-label .optional {
    color: var(--gray-400);
    font-weight: 400;
    font-size: 0.7rem;
}

/* Inputs */
.form-input,
.form-select,
.form-textarea {
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--gray-700);
    background: white;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: inherit;
    width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.15);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--danger);
}

.form-input:disabled,
.form-select:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

.form-hint {
    font-size: 0.7rem;
    color: var(--gray-500);
    margin-top: 3px;
}

.form-error {
    font-size: 0.7rem;
    color: var(--danger);
    margin-top: 3px;
    display: none;
}

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

/* Product Lines */
.product-lines-container {
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 16px;
}

.product-line {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 12px;
    position: relative;
}

.product-line:last-child {
    margin-bottom: 0;
}

.product-line-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-100);
}

.product-line-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.btn-remove-line {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-remove-line:hover {
    background: var(--danger);
    color: white;
}

/* Main product selectors row */
.product-selectors-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
    margin-bottom: 0;
}

.product-selectors-row .form-group label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 3px;
}

.product-selectors-row .form-group select,
.product-selectors-row .form-group input {
    padding: 6px 8px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--gray-700);
    background: white;
    width: 100%;
}

.product-selectors-row .form-group select:focus,
.product-selectors-row .form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(49, 130, 206, 0.12);
}

/* Extra fields row (grade, seamless/welded) */
.extra-fields-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--gray-200);
}

.extra-field-group {
    display: flex;
    flex-direction: column;
}

.extra-field-group label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 3px;
}

.extra-field-group select,
.extra-field-group input {
    padding: 6px 8px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--gray-700);
    background: white;
}

.extra-field-group select:focus,
.extra-field-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(49, 130, 206, 0.12);
}

/* Dimension Fields inside Product Lines */
.dimensions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--gray-200);
}

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

.dimension-group label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 3px;
}

.dimension-input-wrapper {
    display: flex;
    gap: 4px;
}

.dimension-input-wrapper input,
.dimension-input-wrapper select {
    flex: 1;
    min-width: 0;
    padding: 6px 8px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--gray-700);
    background: white;
}

.dimension-input-wrapper input:focus,
.dimension-input-wrapper select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(49, 130, 206, 0.12);
}

/* Cut to Length fields */
.cut-to-length-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 8px;
}

.cut-to-length-row .dimension-group input {
    padding: 6px 8px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--gray-700);
    background: white;
    width: 100%;
}

.cut-to-length-row .dimension-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(49, 130, 206, 0.12);
}

/* Quantity / UOM Row */
.qty-uom-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--gray-200);
}

.qty-uom-row .form-group label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 3px;
}

.qty-uom-row .form-group input,
.qty-uom-row .form-group select {
    padding: 6px 8px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--gray-700);
    background: white;
    width: 100%;
}

.qty-uom-row .form-group input:focus,
.qty-uom-row .form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(49, 130, 206, 0.12);
}

/* Add Product Line Button */
.btn-add-line {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 10px;
    margin-top: 12px;
    background: white;
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    color: var(--gray-500);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-add-line:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--gray-50);
}

.btn-add-line svg {
    margin-right: 6px;
}

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--accent);
    background: var(--gray-50);
}

.file-upload-area svg {
    width: 40px;
    height: 40px;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.file-upload-text {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.file-upload-hint {
    color: var(--gray-400);
    font-size: 0.75rem;
    margin-top: 4px;
}

.file-list {
    margin-top: 12px;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--gray-50);
    border-radius: var(--radius);
    margin-bottom: 6px;
}

.file-item-info {
    display: flex;
    align-items: center;
    overflow: hidden;
}

.file-item-name {
    font-size: 0.8rem;
    color: var(--gray-700);
    display: flex;
    align-items: center;
}

.file-item-name svg {
    width: 16px;
    height: 16px;
    margin-right: 6px;
    color: var(--gray-400);
    flex-shrink: 0;
}

.file-item-size {
    font-size: 0.7rem;
    color: var(--gray-400);
    margin-left: 8px;
    white-space: nowrap;
}

.file-item-remove {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.file-item-remove:hover {
    color: var(--danger);
}

/* Terms Checkbox */
.terms-section {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius);
}

.terms-text {
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-bottom: 12px;
    line-height: 1.6;
}

.checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-label {
    font-size: 0.875rem;
    color: var(--gray-700);
}

/* Submit Button */
.form-actions {
    padding: 24px;
    background: var(--gray-50);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.form-note {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.btn-submit {
    padding: 12px 32px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    font-family: inherit;
}

.btn-submit:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-submit:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    transform: none;
}

.btn-submit svg {
    margin-right: 6px;
}

/* Alerts */
.rfq-container .alert {
    padding: 14px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: none;
    align-items: flex-start;
}

.rfq-container .alert.show {
    display: flex;
}

.rfq-container .alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-right: 10px;
}

.alert-success {
    background: #f0fff4;
    border: 1px solid #9ae6b4;
    color: #276749;
}

.alert-success svg {
    color: #38a169;
}

.alert-error {
    background: #fff5f5;
    border: 1px solid #feb2b2;
    color: #c53030;
}

.alert-error svg {
    color: #e53e3e;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.alert-message {
    font-size: 0.875rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.show {
    display: flex;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: rfq-spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

@keyframes rfq-spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 600px) {
    .rfq-container {
        margin: 16px auto;
    }

    .form-section {
        padding: 16px;
    }

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

    .product-selectors-row {
        grid-template-columns: 1fr;
    }

    .dimensions-grid {
        grid-template-columns: 1fr 1fr;
    }

    .extra-fields-row {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
        text-align: center;
    }

    .btn-submit {
        width: 100%;
        justify-content: center;
    }
}