/* Reusable UI Components */

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    line-height: 1.5;
    white-space: nowrap;
    letter-spacing: -0.005em;
    position: relative;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    background: var(--color-primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-gradient-hover);
    box-shadow: 0 6px 20px -4px rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow-primary);
}

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--text-inverse);
    box-shadow: 0 4px 14px -2px rgba(239, 68, 68, 0.35);
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--text-inverse);
    box-shadow: 0 4px 14px -2px rgba(16, 185, 129, 0.35);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.25rem 0.625rem;
    font-size: 0.8125rem;
    border-radius: var(--border-radius-sm);
}

.btn-lg {
    padding: 0.625rem 1.5rem;
    font-size: 1rem;
    border-radius: var(--border-radius);
}

.btn-block {
    width: 100%;
}

/* ── Forms ── */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex: 1;
}

.form-group label {
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
}

.form-row {
    display: flex;
    gap: var(--space-4);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-2);
}

.form-error {
    color: var(--color-danger);
    font-size: 0.8125rem;
    font-weight: 500;
    min-height: 1.25rem;
}

.form-success {
    color: var(--color-success);
    font-size: 0.8125rem;
    font-weight: 500;
    min-height: 1.25rem;
}

.required {
    color: var(--color-danger);
}

/* ── Inputs ── */
.input {
    padding: 0.5625rem 0.875rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-card);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    width: 100%;
    color: var(--text-primary);
}

.input:hover {
    border-color: var(--color-gray-300);
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.input::placeholder {
    color: var(--text-muted);
}

textarea.input {
    resize: vertical;
}

select.input {
    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='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.875rem center;
    padding-right: var(--space-8);
}

/* ── Tables ── */
.table {
    width: 100%;
    text-align: left;
}

.table th {
    background: var(--color-gray-50);
    padding: var(--space-3) var(--space-4);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-color-light);
    font-size: 0.9rem;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--color-gray-50);
}

.table-sm th,
.table-sm td {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
}

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.1875rem 0.5rem;
    border-radius: var(--border-radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-pending {
    background: var(--color-warning-light);
    color: #92400e;
}

.badge-processing {
    background: var(--color-info-light);
    color: #1e40af;
}

.badge-completed {
    background: var(--color-success-light);
    color: #065f46;
}

.badge-failed {
    background: var(--color-danger-light);
    color: #991b1b;
}

/* ── Loading Spinner ── */
.loading-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ── Toasts ── */
.toast-container {
    position: fixed;
    bottom: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toast {
    background: var(--color-gray-800);
    color: var(--text-inverse);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    font-size: 0.875rem;
    animation: slideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-width: 360px;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 500;
    backdrop-filter: blur(8px);
}

.toast-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.toast-error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.toast-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--color-gray-900);
}

@keyframes slideIn {
    from {
        transform: translateX(100%) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
}

/* ── OCR Status Badge on image ── */
.ocr-status-badge {
    text-align: center;
    margin-top: var(--space-3);
}

/* ── Clickable table row ── */
.clickable-row {
    cursor: pointer;
}

/* ── Empty state ── */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-4);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--space-3);
    opacity: 0.5;
}

/* ── Alert banners ── */
.alert {
    padding: var(--space-3) var(--space-5);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--space-4);
    font-size: 0.9rem;
    line-height: 1.6;
    font-weight: 500;
}

.alert a {
    font-weight: 700;
    text-decoration: underline;
}

.alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.alert-info a { color: #1e40af; }

.alert-warning {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
}

.alert-warning a { color: #92400e; }

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-danger a { color: #991b1b; }

/* ── Settings card ── */
.settings-card {
    max-width: 600px;
    margin-bottom: var(--space-6);
}

/* ── Settings sections ── */
.settings-section {
    margin-bottom: var(--space-8);
}

.section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    max-width: 600px;
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* ── Profile avatar ── */
.profile-avatar-area {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-color);
}

.profile-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-full);
    background: var(--color-primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.avatar-letter {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-inverse);
    user-select: none;
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-avatar-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.profile-avatar-actions .form-hint {
    margin-top: 0;
}

.page-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    max-width: 600px;
    line-height: 1.7;
}

.input-group {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.input-group .input {
    flex: 1;
}

.form-hint {
    display: block;
    margin-top: var(--space-1);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ── Legal Pages ── */
.legal-page {
    max-width: 800px;
}

.legal-effective {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-6);
}

.legal-content {
    padding: var(--space-8);
    line-height: 1.8;
}

.legal-content section {
    margin-bottom: var(--space-6);
}

.legal-content section:last-child {
    margin-bottom: 0;
}

.legal-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.legal-content h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}

.legal-content p {
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
}

.legal-content ul {
    margin: var(--space-2) 0 var(--space-4);
    padding-left: var(--space-6);
}

.legal-content li {
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

.form-hint a {
    color: var(--color-primary);
    text-decoration: underline;
}

.form-message {
    color: var(--color-success);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-3);
}

/* ── Provider info section ── */
.provider-info {
    margin-top: var(--space-8);
}

.provider-info h3 {
    margin-bottom: var(--space-4);
    font-weight: 700;
}

.provider-info .feature-card {
    text-align: center;
}

.provider-info .feature-card h4 {
    margin-bottom: var(--space-2);
    font-weight: 600;
}

.provider-info .feature-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

/* ---- Confidence Indicators ---- */
.confidence-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.6875rem;
    font-weight: 500;
    padding: 2px 6px;
    border-radius: 4px;
    vertical-align: middle;
    margin-left: 4px;
}

.confidence-high {
    background: #dcfce7;
    color: #166534;
}

.confidence-medium {
    background: #fef9c3;
    color: #854d0e;
}

.confidence-low {
    background: #fde2e2;
    color: #991b1b;
}

.confidence-unknown {
    background: var(--color-gray-100);
    color: var(--text-muted);
}

.confidence-bar {
    display: inline-block;
    width: 40px;
    height: 6px;
    background: var(--color-gray-200);
    border-radius: 3px;
    overflow: hidden;
    vertical-align: middle;
}

.confidence-bar-fill {
    display: block;
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.confidence-bar-fill.high { background: #16a34a; }
.confidence-bar-fill.medium { background: #eab308; }
.confidence-bar-fill.low { background: #ef4444; }

/* ---- Extraction Summary ---- */
.extraction-summary {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.extraction-summary h4 {
    margin-bottom: var(--space-3);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.extraction-meta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.extraction-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ---- Categorization Info ---- */
.categorization-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 4px;
}

.categorization-info .cat-method {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.categorization-info .cat-ai-hint {
    color: var(--color-primary);
    font-size: 0.75rem;
    font-style: italic;
}

/* ---- Validation Warnings ---- */
.validation-warnings {
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: var(--border-radius-sm);
    font-size: 0.8125rem;
}

.validation-warnings h5 {
    margin-bottom: var(--space-2);
    color: #664d03;
    font-size: 0.8125rem;
}

.validation-warnings ul {
    margin: 0;
    padding-left: var(--space-4);
    color: #664d03;
}

.validation-warnings li {
    margin-bottom: 2px;
}

/* ---- Extraction Error ---- */
.extraction-error {
    padding: var(--space-3) var(--space-4);
    background: #fde2e2;
    border: 1px solid #f5c6cb;
    border-radius: var(--border-radius);
    color: #991b1b;
    font-size: 0.875rem;
    margin-bottom: var(--space-4);
}

/* ---- Add Line Item Form ---- */
.add-line-item-form {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    align-items: flex-end;
}

.add-line-item-form .form-group {
    flex: 1;
    min-width: 80px;
    gap: 2px;
}

.add-line-item-form .form-group.desc-group {
    flex: 3;
    min-width: 150px;
}

.add-line-item-form label {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.add-line-item-form .input {
    padding: var(--space-1) var(--space-2);
    font-size: 0.8125rem;
}

.add-line-item-form .btn {
    white-space: nowrap;
    align-self: flex-end;
}

/* ---- Overall Confidence Meter ---- */
.overall-confidence {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.overall-confidence .meter {
    flex: 1;
    max-width: 120px;
    height: 8px;
    background: var(--color-gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.overall-confidence .meter-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.4s ease;
}

/* Auto-processing spinner + status */
.processing-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-8);
    color: var(--text-secondary);
    text-align: center;
}

.processing-overlay .loading-spinner {
    width: 40px;
    height: 40px;
}

/* ===================== Duplicate Warning Banner ===================== */
.duplicate-warning-banner {
    background: #fef3c7;
    border: 2px solid #f59e0b;
    border-radius: var(--border-radius);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.duplicate-warning-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    font-size: 1.05rem;
    color: #92400e;
}

.duplicate-icon {
    font-size: 1.3rem;
}

.duplicate-message {
    color: #78350f;
    margin-bottom: var(--space-3);
    font-size: 0.9rem;
}

.duplicate-matches {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.duplicate-match-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: var(--border-radius);
    padding: var(--space-3);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-4);
}

.duplicate-match-card .match-type {
    font-weight: 600;
    font-size: 0.85rem;
    min-width: 120px;
}

.duplicate-match-card .match-details {
    display: flex;
    gap: var(--space-3);
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex: 1;
    min-width: 200px;
}

.duplicate-match-card .match-confidence {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.duplicate-match-card .match-info {
    font-size: 0.8rem;
    color: var(--text-muted);
    width: 100%;
}

.duplicate-actions {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.badge-warning {
    background: #fbbf24;
    color: #78350f;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    margin-left: 4px;
    white-space: nowrap;
}

.badge-danger {
    background: #fca5a5;
    color: #7f1d1d;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    margin-left: 4px;
    white-space: nowrap;
}

.row-deleted {
    opacity: 0.55;
}

.btn-success {
    background: #16a34a;
    color: #fff;
    border-color: #16a34a;
}
.btn-success:hover {
    background: #15803d;
}