/* ==========================================================================
   ASYCUDA Manifest PDF to XML Converter - Design System & Stylesheet
   ========================================================================== */

:root {
    /* Color Palette */
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-card-solid: #1e293b;
    --bg-input: #0f172a;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-focus: #38bdf8;
    
    /* Brand & Accent Colors */
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent-emerald: #10b981;
    --accent-cyan: #06b6d4;
    --accent-purple: #8b5cf6;
    --accent-amber: #f59e0b;
    --accent-rose: #f43f5e;
    
    /* Text Colors */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    /* Layout Variables */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 25px rgba(56, 189, 248, 0.15);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* Reset & Global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body.dark-theme {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.08) 0px, transparent 50%);
    color: var(--text-main);
    font-family: var(--font-sans);
    min-height: 100vh;
    line-height: 1.5;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.brand-text h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.accent-text {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.preset-dropdown-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.custom-select {
    background: var(--bg-card-solid);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
    transition: all 0.2s;
}

.custom-select:focus {
    border-color: var(--border-focus);
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.stat-icon.purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.stat-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--primary); }
.stat-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.stat-icon.amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.stat-icon.rose { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-info { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.badge-success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge-danger { background: rgba(244, 63, 94, 0.2); color: #f87171; }
.badge-purple { background: rgba(139, 92, 246, 0.2); color: #c084fc; }

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.85rem 1.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
}

/* Tab Panes */
.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--bg-card-solid);
    color: var(--text-main);
    border-color: var(--border-color);
}
.btn-secondary:hover {
    background: #334155;
}

.btn-success {
    background: var(--accent-emerald);
    color: white;
}
.btn-success:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

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

.btn-outline-danger {
    background: transparent;
    border-color: rgba(244, 63, 94, 0.3);
    color: var(--accent-rose);
}
.btn-outline-danger:hover {
    background: rgba(244, 63, 94, 0.1);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Upload Tab Styles */
.upload-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.drop-zone {
    border: 2px dashed rgba(56, 189, 248, 0.3);
    background: rgba(30, 41, 59, 0.4);
    border-radius: var(--radius-lg);
    padding: 3.5rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--accent-cyan);
    background: rgba(56, 189, 248, 0.05);
    box-shadow: var(--shadow-glow);
}

.file-input-hidden {
    display: none;
}

.upload-icon-wrapper {
    width: 80px;
    height: 80px;
    background: rgba(56, 189, 248, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 2.5rem;
    color: var(--accent-cyan);
}

.drop-zone h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.drop-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 480px;
    margin: 0 auto 1.75rem;
}

.drop-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.file-spec-info {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.info-card-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.card-header {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.document-rule-box {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: var(--radius-md);
    padding: 0.85rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.82rem;
    color: #bae6fd;
}

.document-rule-box.blue-border {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

.document-rule-box.red-border {
    background: rgba(244, 63, 94, 0.1);
    border-color: rgba(244, 63, 94, 0.3);
    color: #fecdd3;
}

.document-rule-box i {
    font-size: 1.2rem;
    color: var(--accent-cyan);
    margin-top: 2px;
}

.document-rule-box.red-border i {
    color: var(--accent-rose);
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.workflow-steps {
    padding-left: 1.25rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.workflow-steps strong {
    color: var(--text-main);
}

.status-box {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.status-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    color: var(--accent-cyan);
}

.progress-bar-container {
    height: 8px;
    background: #0f172a;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
    transition: width 0.3s ease;
}

.status-details {
    font-size: 0.78rem;
    color: var(--text-dim);
}

.parsed-file-summary {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.parsed-file-summary h4 {
    color: var(--accent-emerald);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.82rem;
}

.summary-row .label { color: var(--text-muted); }
.summary-row .value { color: var(--text-main); font-weight: 600; }
.summary-row .value.highlight { color: var(--accent-cyan); }

/* Edit Tab Forms & Table */
.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.consolidation-banner {
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.4);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: #ddd6fe;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.required { color: var(--accent-rose); }

.form-control {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.55rem 0.85rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--border-focus);
}

/* Data Table & HS Inputs */
.table-actions {
    display: flex;
    gap: 0.5rem;
}

.table-responsive {
    overflow-x: auto;
    margin-top: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    text-align: left;
}

.data-table th {
    background: #1e293b;
    color: var(--text-muted);
    padding: 0.75rem 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 0.4rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(15, 23, 42, 0.4);
}

.data-table tr.row-excluded td {
    background: rgba(244, 63, 94, 0.08);
}

.data-table tr:hover td {
    background: rgba(30, 41, 59, 0.8);
}

.data-table input.table-cell-input {
    width: 100%;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-main);
    padding: 0.35rem 0.4rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.82rem;
}

.hs-input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.hs-cell-input {
    font-family: var(--font-mono);
    color: var(--accent-emerald) !important;
}

.btn-hs-lookup {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    transition: color 0.2s;
}

.btn-hs-lookup:hover {
    color: var(--accent-cyan);
}

.hs-code-tag {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-weight: 600;
}

.data-table input.table-cell-input.bold {
    font-weight: 700;
    color: var(--accent-cyan);
}

.text-rose {
    color: var(--accent-rose) !important;
    font-weight: 700;
}

.data-table input.table-cell-input:focus {
    background: var(--bg-input);
    border-color: var(--border-focus);
    outline: none;
}

.table-cell-select {
    background: var(--bg-input);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    outline: none;
}

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

.empty-icon {
    font-size: 2.5rem;
    color: var(--text-dim);
    margin: 1.5rem 0 0.5rem;
}

.btn-icon-danger {
    background: transparent;
    border: none;
    color: var(--accent-rose);
    cursor: pointer;
    padding: 0.3rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.btn-icon-danger:hover {
    background: rgba(244, 63, 94, 0.2);
}

/* Modal Dialog */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-content {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 900px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    animation: modalPop 0.25s ease-out;
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.6rem;
    cursor: pointer;
}

.modal-close-btn:hover {
    color: var(--accent-rose);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hs-search-bar-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.hs-search-bar-wrapper .search-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
}

.hs-search-input {
    padding-left: 2.75rem;
    font-size: 0.95rem;
}

.hs-results-container {
    max-height: 400px;
    overflow-y: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

/* Export Tab */
.export-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 1.5rem;
}

.export-controls-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.export-controls-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.highlight-box {
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: var(--radius-md);
    padding: 0.85rem;
}

.highlight-box.red-border {
    background: rgba(244, 63, 94, 0.08);
    border-color: rgba(244, 63, 94, 0.3);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
}

.checkbox-label.bold {
    font-weight: 700;
    color: var(--text-main);
}

.help-text {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-left: 1.5rem;
}

.checkbox-label input[type="checkbox"] {
    accent-color: var(--accent-cyan);
    width: 16px;
    height: 16px;
}

.validation-box {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.validation-box h4 {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.validation-list {
    list-style: none;
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.validation-list li {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.circle-icon { font-size: 0.8rem; }
.circle-icon.green { color: var(--accent-emerald); }
.circle-icon.red { color: var(--accent-rose); }
.circle-icon.amber { color: var(--accent-amber); }

.action-buttons-stack {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.xml-viewer-card {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.xml-code-container {
    background: #090d16;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    max-height: 580px;
    overflow: auto;
    margin-top: 1rem;
}

.xml-code-container pre code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: #e2e8f0;
    white-space: pre-wrap;
    word-break: break-all;
}

.hidden { display: none !important; }

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: var(--bg-card-solid);
    border-left: 4px solid var(--primary);
    color: var(--text-main);
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideInRight 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.toast-success { border-left-color: var(--accent-emerald); }
.toast.toast-error { border-left-color: var(--accent-rose); }
.toast.toast-warning { border-left-color: var(--accent-amber); }

@media (max-width: 1024px) {
    .stats-bar { grid-template-columns: repeat(2, 1fr); }
    .upload-grid { grid-template-columns: 1fr; }
    .export-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .stats-bar { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .app-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
}