/**
 * Cost Estimation Web UI - Styles
 * Modern, professional UI matching the tender analysis mockup design
 */

/* ============================================
   CSS Variables & Theme (from ui_mockup)
   ============================================ */
:root {
    /* Primary palette - deep blue tones */
    --primary-900: #0f172a;
    --primary-800: #1e293b;
    --primary-700: #334155;
    --primary-600: #475569;
    --primary-500: #64748b;
    --primary-400: #94a3b8;
    --primary-300: #cbd5e1;
    --primary-200: #e2e8f0;
    --primary-100: #f1f5f9;
    --primary-50: #f8fafc;
    
    /* Accent colors */
    --accent-blue: #3b82f6;
    --accent-blue-light: #60a5fa;
    --accent-cyan: #06b6d4;
    --accent-teal: #14b8a6;
    
    /* Status colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --success-dark: #065f46;
    
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --warning-dark: #92400e;
    
    --error: #ef4444;
    --error-light: #fee2e2;
    --error-dark: #991b1b;
    
    --info: #6366f1;
    --info-light: #e0e7ff;
    --info-dark: #3730a3;
    
    /* Typography */
    --font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ============================================
   Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 100%);
    color: var(--primary-100);
    min-height: 100vh;
    line-height: 1.6;
}

#app {
    min-height: 100vh;
}

a {
    color: var(--accent-blue-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-cyan);
}

/* ============================================
   Dashboard Layout
   ============================================ */
.dashboard {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--primary-700);
}

.header-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary-100), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.subtitle {
    color: var(--primary-400);
    font-size: 1.1rem;
}

/* ============================================
   Panel Styles
   ============================================ */
.panel {
    background: var(--primary-800);
    border-radius: var(--radius-xl);
    border: 1px solid var(--primary-700);
    overflow: hidden;
    animation: fadeIn var(--transition-normal) ease-out;
}

.panel-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--primary-700);
    background: var(--primary-900);
}

.panel-header-with-actions {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
}

.panel-header-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.panel-header.compact {
    padding: var(--space-md);
}

.panel-header.compact h2 {
    font-size: 1.1rem;
}

.panel-header.compact .panel-subtitle {
    font-size: 0.8rem;
}

.panel-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-100);
    margin-bottom: var(--space-xs);
}

.panel-toggle {
    background: transparent;
    border: 1px solid var(--primary-700);
    color: var(--primary-200);
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
}

.panel-toggle:hover {
    background: var(--primary-800);
}

.panel-subtitle {
    font-size: 0.875rem;
    color: var(--primary-500);
}

/* ============================================
   Upload Section Styles
   ============================================ */
.upload-container {
    max-width: 800px;
    margin: 0 auto;
}

.upload-panel .upload-content {
    padding: var(--space-xl);
}

.upload-section {
    margin-bottom: var(--space-xl);
}

.upload-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.label-icon {
    font-size: 1.5rem;
}

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

.label-text strong {
    color: var(--primary-100);
    font-size: 1rem;
}

.label-hint {
    color: var(--primary-500);
    font-size: 0.875rem;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--primary-600);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--primary-900);
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.1);
}

.drop-zone-small {
    padding: var(--space-lg);
}

.drop-zone-content {
    pointer-events: none;
}

.drop-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--space-md);
    opacity: 0.7;
}

.drop-zone p {
    color: var(--primary-400);
    margin-bottom: var(--space-xs);
}

.drop-zone .link {
    color: var(--accent-cyan);
    font-weight: 500;
}

.drop-hint {
    font-size: 0.8rem;
    color: var(--primary-500);
}

/* Files List */
.files-list {
    margin-top: var(--space-md);
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--primary-900);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

.file-icon {
    font-size: 1.25rem;
}

.file-name {
    flex: 1;
    color: var(--primary-200);
    font-size: 0.9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    color: var(--primary-500);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.file-remove {
    background: none;
    border: none;
    color: var(--primary-500);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.file-remove:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

/* ============================================
   Form Styles
   ============================================ */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    color: var(--primary-300);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.form-input {
    width: 100%;
    padding: var(--space-md);
    background: var(--primary-900);
    border: 1px solid var(--primary-700);
    border-radius: var(--radius-md);
    color: var(--primary-100);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

.form-input::placeholder {
    color: var(--primary-600);
}

.input-with-suffix {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-suffix .form-input {
    padding-right: 3rem;
}

.input-suffix {
    position: absolute;
    right: var(--space-md);
    color: var(--primary-500);
    font-family: var(--font-mono);
}

/* Parameters Section */
.params-section {
    padding: var(--space-lg);
    background: var(--primary-900);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.params-section .section-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-200);
    margin-bottom: var(--space-lg);
}

.section-icon {
    font-size: 1.25rem;
}

.params-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

/* ============================================
   Button Styles
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent-blue);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-blue-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--primary-700);
    color: var(--primary-200);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--primary-600);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

.btn-small {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
}

.btn-icon {
    font-size: 1.25rem;
}

/* Upload mode toggle */
.upload-mode-toggle {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.upload-mode {
    margin-bottom: var(--space-lg);
}

.hidden {
    display: none !important;
}

/* Submit Section */
.submit-section {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--primary-700);
}

.submit-hint {
    margin-top: var(--space-md);
    color: var(--primary-500);
    font-size: 0.875rem;
}

.file-primary .file-name {
    color: var(--accent-blue);
    font-weight: 600;
}

.file-secondary .file-name {
    color: var(--primary-300);
}

.files-group-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.file-count {
    color: var(--primary-400);
    font-size: 0.85rem;
}

.file-badge {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.file-badge.primary {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.file-badge.secondary {
    background: rgba(148, 163, 184, 0.2);
    color: var(--primary-300);
}

.files-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.file-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    background: var(--primary-800);
    gap: var(--space-md);
}

.file-row.file-secondary {
    background: rgba(30, 41, 59, 0.6);
}

.file-row-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.file-meta {
    color: var(--primary-400);
    font-size: 0.8rem;
}

.file-tag {
    font-size: 0.75rem;
    color: var(--primary-300);
    border: 1px dashed var(--primary-600);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.archive-children {
    margin-top: var(--space-sm);
    margin-left: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

/* File Tree Styles */
.files-summary-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.files-group {
    margin-bottom: var(--space-md);
}

.files-subgroup {
    margin-left: var(--space-md);
    margin-top: var(--space-sm);
}

.files-subgroup h5 {
    color: var(--primary-300);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.file-tree {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.file-tree-item {
    display: flex;
    flex-direction: column;
}

.file-tree-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: background 0.15s;
}

.file-tree-row:hover {
    background: var(--primary-800);
}

/* Flat file list for downloaded documents */
.files-flat-list {
    max-height: 400px;
    overflow-y: auto;
    padding: var(--space-sm);
}

.files-flat-list .file-tree {
    gap: 1px;
}

.files-flat-list .file-tree-row {
    padding: var(--space-xs) var(--space-sm);
}

.file-count-badge {
    background: var(--primary-700);
    color: var(--primary-200);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 500;
}

.file-tree-children {
    margin-left: calc(var(--space-lg) + var(--space-sm));
    border-left: 2px solid var(--primary-600);
    padding-left: var(--space-md);
    margin-top: var(--space-xs);
    margin-bottom: var(--space-sm);
    background: rgba(30, 41, 59, 0.3);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.file-tree-item.has-children {
    margin-bottom: var(--space-sm);
}

.archive-row {
    background: var(--primary-800);
    border-radius: var(--radius-sm);
}

.archive-row .file-name {
    font-weight: 500;
}

.file-tree-child {
    padding-left: var(--space-sm);
}

.file-icon {
    flex-shrink: 0;
    font-size: 0.9rem;
}

.file-name {
    flex: 1;
    word-break: break-word;
}

.file-name-primary {
    color: var(--accent-blue);
    font-weight: 500;
}

.file-name-secondary {
    color: var(--primary-300);
}

.file-name-kosztorys {
    color: #22c55e;  /* Green color for kosztorys files */
    font-weight: 600;
}

.file-name-przedmiar {
    color: #4ade80;  /* Light green for przedmiar files */
    font-weight: 600;
}

.file-name-swz {
    color: var(--accent-blue);  /* Blue for SWZ files */
    font-weight: 500;
}

.file-name-pfu {
    color: var(--accent-cyan);  /* Cyan for PFU files */
    font-weight: 500;
}

.file-name-technical {
    color: #a78bfa;  /* Purple for technical docs */
    font-weight: 500;
}

.file-size {
    color: var(--primary-500);
    font-size: 0.8rem;
    flex-shrink: 0;
    font-family: var(--font-mono);
}

/* ============================================
   Login Styles
   ============================================ */
.login-container {
    margin-top: var(--space-2xl);
}

.login-content {
    padding: var(--space-xl);
}

.error-message {
    padding: var(--space-md);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: var(--radius-md);
    color: var(--error);
    margin-bottom: var(--space-lg);
    font-size: 0.9rem;
}

.success-message {
    padding: var(--space-md);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--success);
    border-radius: var(--radius-md);
    color: var(--success);
    margin-bottom: var(--space-lg);
    font-size: 0.9rem;
}

/* Auth Links (login, register, forgot password) */
.auth-links {
    margin-top: var(--space-lg);
    text-align: center;
    font-size: 0.9rem;
}

.auth-links p {
    margin: var(--space-sm) 0;
    color: var(--text-secondary);
}

.auth-links a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-links a:hover {
    color: var(--accent-pink);
    text-decoration: underline;
}

/* Nav user display */
.nav-user {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-right: var(--space-md);
}

/* ============================================
   Processing/Loading Styles
   ============================================ */
.processing-container {
    margin-top: var(--space-2xl);
}

.processing-content {
    padding: var(--space-2xl);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--primary-700);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-xl);
}

.processing-status {
    color: var(--primary-300);
    font-size: 1.1rem;
    margin-bottom: var(--space-lg);
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--primary-700);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-cyan));
    border-radius: var(--radius-sm);
    transition: width var(--transition-slow);
}

.progress-text {
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid var(--primary-700);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ============================================
   Detail View (Results) Styles
   ============================================ */
.detail-view {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.detail-nav {
    margin-bottom: var(--space-lg);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--primary-400);
    font-size: 0.875rem;
    padding: var(--space-sm) var(--space-md);
    background: var(--primary-800);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.back-link:hover {
    background: var(--primary-700);
    color: var(--primary-100);
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    background: var(--primary-800);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    border: 1px solid var(--primary-700);
    position: relative;
    overflow: hidden;
}

.detail-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.detail-header.success::before { background: var(--success); }
.detail-header.warning::before { background: var(--warning); }
.detail-header.error::before { background: var(--error); }

.tender-type-badge {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.detail-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--primary-100);
    margin-bottom: var(--space-md);
    line-height: 1.4;
}

.tender-title-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.tender-source-link {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--primary-400);
    text-decoration: underline;
    margin-top: calc(var(--space-xs) * -1);
}

.tender-source-link:hover {
    color: var(--primary-200);
}

.tender-info-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.info-item {
    font-size: 0.9rem;
    color: var(--primary-400);
}

.header-status {
    text-align: center;
    flex-shrink: 0;
}

.status-indicator {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.status-indicator.success {
    background: var(--success-light);
    color: var(--success-dark);
}

.status-text {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary-300);
}

/* ============================================
   Content Layout
   ============================================ */
.detail-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(350px, 450px);
    gap: var(--space-xl);
    align-items: start;
}

.detail-content .content-left {
    min-width: 0;  /* Prevent overflow */
}

.detail-content .content-right {
    min-width: 0;  /* Prevent overflow */
    position: sticky;
    top: var(--space-lg);
}

@media (max-width: 900px) {
    .detail-content {
        grid-template-columns: 1fr;
    }
    
    .detail-content .content-right {
        order: -1;  /* Put cost summary first on mobile */
        position: static;
    }
}

/* ============================================
   Cost Panel Styles
   ============================================ */
.cost-summary {
    padding: var(--space-lg);
    background: linear-gradient(135deg, var(--primary-900) 0%, rgba(6, 182, 212, 0.1) 100%);
    border-bottom: 1px solid var(--primary-700);
}

.cost-main {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.cost-main .cost-label {
    display: block;
    font-size: 0.75rem;
    color: var(--primary-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.cost-total {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.cost-range {
    text-align: center;
    margin-bottom: var(--space-md);
}

.range-label {
    font-size: 0.875rem;
    color: var(--primary-500);
    margin-right: var(--space-sm);
}

.range-value {
    font-size: 1rem;
    color: var(--primary-300);
    font-family: var(--font-mono);
}

.cost-confidence {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.confidence-label {
    font-size: 0.875rem;
    color: var(--primary-500);
}

.confidence-bar {
    width: 120px;
    height: 8px;
    background: var(--primary-700);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-teal), var(--accent-cyan));
    border-radius: var(--radius-sm);
    transition: width var(--transition-slow);
}

.confidence-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.cost-netto-brutto {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px dashed var(--primary-700);
}

.netto-brutto-item {
    text-align: center;
}

.netto-brutto-item .label {
    display: block;
    font-size: 0.75rem;
    color: var(--primary-500);
    margin-bottom: var(--space-xs);
}

.netto-brutto-item .value {
    font-size: 1.1rem;
    color: var(--primary-200);
    font-family: var(--font-mono);
}

/* Cost Totals */
.cost-totals {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--primary-700);
}

.cost-total-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
}

.cost-total-item .cost-label {
    color: var(--primary-400);
    font-size: 0.9rem;
}

.cost-total-item .cost-value {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--primary-200);
}

.cost-total-item.main .cost-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-100);
}

.cost-total-item.highlight {
    margin-top: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 1px solid var(--primary-700);
}

.cost-total-item.highlight .cost-label {
    font-weight: 600;
    color: var(--primary-200);
}

.cost-total-item.highlight .cost-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

/* Cost Breakdown */
.cost-breakdown {
    padding: var(--space-md);
}

.cost-breakdown h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-200);
    margin-bottom: var(--space-xs);
}

.breakdown-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.breakdown-item {
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--primary-800);
}

.breakdown-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.breakdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.breakdown-name,
.breakdown-category {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary-200);
}

.breakdown-value,
.breakdown-amount {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.breakdown-bar-container {
    height: 18px;
    background: var(--primary-900);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--space-xs);
}

.breakdown-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--space-sm);
    min-width: 40px;
    transition: width var(--transition-slow);
}

.breakdown-percent {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--primary-400);
    text-align: right;
}

.breakdown-desc {
    font-size: 0.8rem;
    color: var(--primary-500);
}

/* ============================================
   Positions Panel Styles
   ============================================ */
.positions-panel {
    max-height: 800px;
    display: flex;
    flex-direction: column;
}

.positions-summary {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--primary-700);
}

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

.summary-stat .stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.summary-stat .stat-value.success {
    color: var(--success);
}

.summary-stat .stat-value.warning {
    color: var(--warning);
}

.summary-stat .stat-label {
    font-size: 0.75rem;
    color: var(--primary-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.positions-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
}

.position-item {
    padding: var(--space-md);
    background: var(--primary-900);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    border-left: 3px solid var(--primary-600);
}

.position-item.priced {
    border-left-color: var(--success);
}

.position-item.unpriced {
    border-left-color: var(--warning);
}

.position-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xs);
}

.position-number {
    font-weight: 600;
    color: var(--primary-400);
    font-family: var(--font-mono);
    min-width: 30px;
}

.position-knr {
    font-size: 0.8rem;
    color: var(--primary-500);
    font-family: var(--font-mono);
}

.position-price {
    margin-left: auto;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.position-price.high {
    color: var(--success);
}

.position-price.medium {
    color: var(--accent-cyan);
}

.position-price.low {
    color: var(--warning);
}

.position-desc {
    font-size: 0.875rem;
    color: var(--primary-300);
    margin-bottom: var(--space-xs);
    line-height: 1.4;
}

.position-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.8rem;
    color: var(--primary-500);
}

.confidence-badge {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.confidence-badge.high {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.confidence-badge.medium {
    background: rgba(6, 182, 212, 0.2);
    color: var(--accent-cyan);
}

.confidence-badge.low {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.more-positions {
    text-align: center;
    padding: var(--space-md);
    color: var(--primary-500);
    font-size: 0.875rem;
}

/* ============================================
   Footer Styles
   ============================================ */
.detail-footer {
    margin-top: var(--space-xl);
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.external-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--accent-blue);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.external-link:hover {
    background: var(--accent-blue-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.external-link.secondary {
    background: var(--primary-700);
    color: var(--primary-200);
}

.external-link.secondary:hover {
    background: var(--primary-600);
}

/* ============================================
   Error Styles
   ============================================ */
.error-container {
    margin-top: var(--space-2xl);
}

.error-content {
    padding: var(--space-2xl);
    text-align: center;
}

.error-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
}

.error-content .error-message {
    background: none;
    border: none;
    font-size: 1.1rem;
    color: var(--primary-300);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .dashboard {
        padding: var(--space-md);
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .header-content h1 {
        font-size: 1.75rem;
    }
    
    .detail-header {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .header-status {
        align-self: flex-start;
    }
    
    .tender-info-row {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .cost-total {
        font-size: 2rem;
    }
    
    .params-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-footer {
        flex-direction: column;
    }
    
    .external-link {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   Navigation Bar Styles
   ============================================ */
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    background: var(--primary-900);
    border-bottom: 1px solid var(--primary-700);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-logo {
    font-size: 1.5rem;
}

.nav-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-100);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    color: var(--primary-400);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--primary-800);
    color: var(--primary-100);
}

.nav-link.active {
    background: var(--primary-800);
    color: var(--accent-cyan);
}

.nav-icon {
    font-size: 1rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* ============================================
   Page Content Layout
   ============================================ */
.page-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl);
    min-height: calc(100vh - 60px);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--primary-700);
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-100);
    margin-bottom: var(--space-sm);
}

.header-stats {
    display: flex;
    gap: var(--space-xl);
}

.header-stats .stat {
    text-align: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--primary-800);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-700);
}

.header-stats .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-100);
    font-family: var(--font-mono);
}

.header-stats .stat-value.success {
    color: var(--success);
}

.header-stats .stat-value.warning {
    color: var(--warning);
}

.header-stats .stat-label {
    font-size: 0.75rem;
    color: var(--primary-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Dashboard / Tender Grid
   ============================================ */
.dashboard-container {
    animation: fadeIn var(--transition-normal) ease-out;
}

.tender-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-md);
}

.tender-card {
    background: var(--primary-800);
    border-radius: var(--radius-xl);
    border: 1px solid var(--primary-700);
    padding: var(--space-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.tender-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.tender-card.success::before { background: var(--success); }
.tender-card.warning::before { background: var(--warning); }
.tender-card.error::before { background: var(--error); }
.tender-card.pending::before { background: var(--primary-600); }

.tender-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-600);
}

.tender-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.tender-card .card-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tender-mode-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--primary-700);
    background: var(--primary-900);
}

.tender-mode-icon {
    font-size: 1rem;
    line-height: 1;
}

.tender-type {
    font-size: 0.7rem;
    color: var(--primary-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.status-badge.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.status-badge.warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.status-badge.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.status-badge.pending {
    background: rgba(100, 116, 139, 0.2);
    color: var(--primary-400);
}

.tender-card .tender-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-100);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.tender-card .tender-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.tender-card .meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.8rem;
    color: var(--primary-400);
}

.meta-icon {
    font-size: 0.9rem;
}

.cost-preview {
    background: var(--primary-900);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.cost-label {
    display: block;
    font-size: 0.75rem;
    color: var(--primary-500);
    margin-bottom: var(--space-xs);
}

.cost-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
}

.confidence-preview {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.confidence-bar-small {
    flex: 1;
    height: 4px;
    background: var(--primary-700);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.confidence-text {
    font-size: 0.75rem;
    color: var(--primary-500);
}

/* Variance/Uncertainty Bar for Tender Cards */
.variance-preview {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.variance-bar-small {
    flex: 1;
    height: 6px;
    background: var(--primary-700);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.variance-fill {
    height: 100%;
    border-radius: var(--radius-sm);
    transition: width 0.3s ease;
}

.variance-fill.variance-low {
    background: linear-gradient(90deg, var(--success), var(--success-light));
}

.variance-fill.variance-medium {
    background: linear-gradient(90deg, var(--warning), #fbbf24);
}

.variance-fill.variance-high {
    background: linear-gradient(90deg, #f97316, var(--warning));
}

.variance-fill.variance-very-high {
    background: linear-gradient(90deg, var(--error), #f97316);
}

.variance-text {
    font-size: 0.75rem;
    color: var(--primary-400);
    white-space: nowrap;
}

.card-action {
    text-align: right;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    font-weight: 500;
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-2xl);
    background: var(--primary-800);
    border-radius: var(--radius-xl);
    border: 2px dashed var(--primary-700);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--primary-300);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--primary-500);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Loading Container
   ============================================ */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--primary-400);
}

.loading-container .spinner {
    width: 50px;
    height: 50px;
    margin-bottom: var(--space-lg);
}

/* ============================================
   Files Panel
   ============================================ */
.files-panel.collapsed .files-content {
    display: none;
}

.files-panel.collapsed .panel-header {
    border-bottom: none;
}

.files-panel .files-content {
    padding: var(--space-lg);
}

.files-group {
    margin-bottom: var(--space-lg);
}

.files-group:last-child {
    margin-bottom: 0;
}

.files-group h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-300);
    margin-bottom: var(--space-sm);
}

.files-list-simple {
    list-style: none;
}

.files-list-simple li {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--primary-800);
    font-size: 0.85rem;
}

.files-list-simple li:last-child {
    border-bottom: none;
}

.files-list-simple .file-name {
    color: var(--primary-300);
}

.files-list-simple .file-name.file-name-primary {
    color: var(--accent-blue);
    font-weight: 500;
}

.files-list-simple .file-name.file-name-secondary {
    color: var(--primary-300);
}

.files-list-simple .file-name.file-name-kosztorys {
    color: #22c55e;  /* Green color for kosztorys/przedmiar files */
    font-weight: 600;
}

/* Child files extracted from ZIP */
.files-list-simple .file-child-row {
    padding-left: var(--space-lg);
    background: rgba(30, 41, 59, 0.3);
    font-size: 0.8rem;
}

.files-list-simple .file-child-row .file-name {
    color: var(--primary-400);
}

.files-list-simple .file-size {
    color: var(--primary-500);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* ============================================
   Preferences Page
   ============================================ */
.preferences-container {
    max-width: 800px;
    margin: 0 auto;
}

.preferences-panel {
    margin-bottom: var(--space-xl);
}

.preferences-grid {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.preference-item {
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--primary-800);
}

.preference-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.preference-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.preference-header label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-200);
}

.preference-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    min-width: 80px;
    text-align: right;
}

.preference-slider {
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--primary-700);
    border-radius: var(--radius-sm);
    outline: none;
    margin-bottom: var(--space-sm);
}

.preference-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-cyan);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preference-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px var(--accent-cyan);
}

.preference-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-cyan);
    cursor: pointer;
    border: none;
}

.preference-hint {
    font-size: 0.8rem;
    color: var(--primary-500);
    line-height: 1.5;
}

.preferences-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

/* ============================================
   Params Edit Link
   ============================================ */
.params-edit-link {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--accent-cyan);
    font-weight: normal;
}

.params-edit-link:hover {
    text-decoration: underline;
}

/* ============================================
   Upload Section Required Hint
   ============================================ */
.label-hint.required::after {
    content: ' *';
    color: var(--error);
}

/* ============================================
   Processing/Pending/Error Indicators
   ============================================ */
.processing-indicator,
.pending-indicator,
.error-indicator {
    padding: var(--space-2xl);
    text-align: center;
}

.pending-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.6;
}

/* ============================================
   Danger Button
   ============================================ */
.external-link.danger {
    background: var(--error);
    color: white;
}

.external-link.danger:hover {
    background: #dc2626;
}

/* ============================================
   Status Indicator Variants
   ============================================ */
.status-indicator.warning {
    background: var(--warning-light);
    color: var(--warning-dark);
}

.status-indicator.error {
    background: var(--error-light);
    color: var(--error-dark);
}

.status-indicator.pending {
    background: var(--primary-700);
    color: var(--primary-400);
}

/* ============================================
   Demo Tender Styles
   ============================================ */
.demo-link {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
    border: 1px solid var(--info);
}

.demo-link:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(6, 182, 212, 0.3));
}

.demo-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, var(--info), var(--accent-cyan));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-md);
    margin-left: auto;
}

.demo-view .detail-header {
    background: linear-gradient(135deg, var(--primary-800) 0%, rgba(99, 102, 241, 0.1) 100%);
}

.demo-view .detail-header::before {
    background: linear-gradient(90deg, var(--info), var(--accent-cyan)) !important;
}

.tender-subject {
    color: var(--primary-300);
    font-size: 0.95rem;
    margin-top: var(--space-sm);
    line-height: 1.5;
}

/* Content layout with spacing - applies to all detail views */
.demo-content .content-left,
.tender-content .content-left,
.detail-content .content-left {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.demo-content .content-right,
.tender-content .content-right,
.detail-content .content-right {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Info Panel - Grid Layout (for both demo and regular tenders) */
.demo-info-panel .panel-header,
.tender-info-panel .panel-header {
    padding: var(--space-md) var(--space-lg);
}

.demo-info-panel .panel-header h2,
.tender-info-panel .panel-header h2 {
    font-size: 1rem;
}

.demo-info-panel .demo-info-content,
.tender-info-panel .tender-info-content {
    padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.demo-info-grid,
.tender-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.demo-info-item,
.tender-info-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-sm) var(--space-md);
    background: var(--primary-900);
    border-radius: var(--radius-md);
}

.demo-info-label,
.tender-info-label {
    color: var(--primary-500);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.demo-info-value,
.tender-info-value {
    color: var(--primary-100);
    font-weight: 600;
    font-size: 0.85rem;
}

/* Clickable breakdown items */
.breakdown-item.clickable {
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.breakdown-item.clickable:hover {
    background: var(--primary-800);
    border-color: var(--accent-cyan);
}

.breakdown-item.clickable.active {
    background: rgba(6, 182, 212, 0.15);
    border-color: var(--accent-cyan);
}

.breakdown-hint {
    font-size: 0.8rem;
    color: var(--primary-500);
    margin-bottom: var(--space-md);
}

.clear-filter {
    margin-bottom: var(--space-md);
    font-size: 0.8rem;
}

/* Position category tag */
.position-category-tag {
    font-size: 0.7rem;
    padding: 2px 8px;
    background: var(--primary-700);
    color: var(--primary-300);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Evaluation Panel - New layout */
.evaluation-panel .evaluation-content {
    padding: var(--space-lg);
}

.eval-comparison {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.eval-column {
    flex: 1;
    text-align: center;
    padding: var(--space-md);
    background: var(--primary-900);
    border-radius: var(--radius-md);
}

.eval-column-title {
    font-size: 0.8rem;
    color: var(--primary-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.eval-amount {
    font-size: 1.1rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--primary-100);
}

.eval-amount-sub {
    font-size: 0.75rem;
    color: var(--primary-500);
    margin-top: 2px;
}

.eval-vs {
    font-size: 0.9rem;
    color: var(--primary-500);
    font-weight: 600;
}

.eval-result {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.eval-result.success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid var(--success);
}

.eval-result.warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid var(--warning);
}

.eval-error-label {
    color: var(--primary-300);
    font-size: 0.9rem;
}

.eval-error-value {
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.eval-result.success .eval-error-value {
    color: var(--success);
}

.eval-result.warning .eval-error-value {
    color: var(--warning);
}

.eval-mape {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--primary-900);
    border-radius: var(--radius-md);
}

.eval-mape-label {
    color: var(--primary-400);
    font-size: 0.85rem;
}

.eval-mape-value {
    font-family: var(--font-mono);
    color: var(--primary-200);
    font-weight: 500;
}

/* ============================================
   Responsive Navigation
   ============================================ */
@media (max-width: 768px) {
    .main-nav {
        flex-wrap: wrap;
        gap: var(--space-md);
        padding: var(--space-md);
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
        border-top: 1px solid var(--primary-700);
        padding-top: var(--space-md);
    }
    
    .nav-link span:not(.nav-icon) {
        display: none;
    }
    
    .nav-icon {
        font-size: 1.25rem;
    }
    
    .page-header {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .header-stats {
        width: 100%;
        justify-content: center;
    }
    
    .tender-grid {
        grid-template-columns: 1fr;
    }
    
    .preferences-actions {
        flex-direction: column;
    }
    
    .preferences-actions .btn {
        width: 100%;
    }
    
    .demo-badge {
        display: none;
    }
}

/* ============================================
   Doc-Only Estimation Mode
   ============================================ */

.doc-only-mode-panel {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.doc-only-info {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.doc-only-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.doc-only-text strong {
    display: block;
    color: var(--primary-100);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.doc-only-text p {
    color: var(--primary-300);
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

/* Doc-only info in tender detail */
.tender-info-item.highlight {
    background: rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
}

.tender-info-item.highlight .tender-info-value {
    color: var(--accent);
    font-weight: 600;
}

.doc-only-assumptions,
.doc-only-missing-data {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--primary-700);
}

.doc-only-assumptions h4,
.doc-only-missing-data h4 {
    color: var(--primary-200);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.doc-only-assumptions ul,
.doc-only-missing-data ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.doc-only-assumptions li,
.doc-only-missing-data li {
    color: var(--primary-400);
    font-size: 0.8rem;
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.doc-only-assumptions li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--success);
}

.doc-only-missing-data li::before {
    content: "!";
    position: absolute;
    left: 0;
    color: var(--warning);
    font-weight: 700;
}

/* Estimation Actions in Tender Detail */
.estimation-actions {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--primary-700);
    text-align: center;
}

.estimation-actions .btn-large {
    width: 100%;
    justify-content: center;
}

.estimation-hint {
    color: var(--primary-400);
    font-size: 0.8rem;
    margin-top: var(--space-sm);
}

.pending-hint {
    color: var(--primary-400);
    font-size: 0.85rem;
    margin-top: var(--space-sm);
}

.retry-section {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--primary-700);
}

.retry-section .btn {
    width: 100%;
}

/* ============================================
   MULTI-RUN ESTIMATION PANEL
   ============================================ */

.multi-run-panel {
    margin-top: var(--space-lg);
}

.multi-run-panel .panel-header {
    border-bottom: 1px solid var(--primary-700);
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-md);
}

.multi-run-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.multi-run-table th,
.multi-run-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--primary-700);
}

.multi-run-table th {
    color: var(--primary-300);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.multi-run-table td {
    color: var(--primary-100);
}

.multi-run-table .run-number {
    width: 80px;
    color: var(--primary-400);
    font-weight: 500;
}

.multi-run-table .run-netto {
    position: relative;
}

.multi-run-table .run-brutto {
    color: var(--primary-300);
    text-align: right;
}

/* Run bar visualization */
.run-bar-container {
    position: relative;
    height: 24px;
    background: var(--primary-800);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.run-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--accent) 0%, var(--primary-500) 100%);
    border-radius: var(--radius-sm);
    transition: width 0.3s ease;
}

.run-value {
    position: absolute;
    top: 50%;
    left: var(--space-sm);
    transform: translateY(-50%);
    color: var(--primary-100);
    font-weight: 600;
    font-size: 0.8rem;
    z-index: 1;
}

/* Min/max run highlighting */
.run-row-min {
    background: rgba(34, 197, 94, 0.1);
}

.run-row-min .run-bar {
    background: linear-gradient(90deg, var(--success) 0%, #16a34a 100%);
}

.run-row-max {
    background: rgba(239, 68, 68, 0.1);
}

.run-row-max .run-bar {
    background: linear-gradient(90deg, var(--error) 0%, #dc2626 100%);
}

.run-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 700;
    margin-left: var(--space-sm);
    vertical-align: middle;
}

.run-badge.min {
    background: var(--success);
    color: white;
}

.run-badge.max {
    background: var(--error);
    color: white;
}

/* Average row */
.run-row-avg {
    background: rgba(99, 102, 241, 0.15);
    border-top: 2px solid var(--accent);
}

.run-row-avg td {
    color: var(--accent);
    font-weight: 600;
}

/* Variance statistics */
.variance-stats {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--primary-800);
    border-radius: var(--radius-md);
}

.variance-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--primary-700);
}

.variance-item:last-child {
    border-bottom: none;
}

.variance-item.highlight {
    background: rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
    margin: var(--space-sm) calc(-1 * var(--space-md));
}

.variance-label {
    color: var(--primary-300);
    font-size: 0.875rem;
}

.variance-value {
    color: var(--primary-100);
    font-weight: 600;
    font-size: 0.875rem;
}

.variance-item.highlight .variance-value {
    color: var(--accent);
}

/* ============================================
   Reasoning Buttons and Modal
   ============================================ */

/* Reasoning button (larger, next to totals) */
.reasoning-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    margin-left: var(--space-sm);
    background: transparent;
    border: 1px solid var(--primary-600);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    vertical-align: middle;
}

.reasoning-btn:hover {
    background: var(--primary-700);
    border-color: var(--accent);
}

.reasoning-icon {
    font-size: 0.9rem;
    line-height: 1;
}

/* Reasoning button small (for positions and categories) */
.reasoning-btn-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    padding: 0;
    margin-left: var(--space-xs);
    margin-right: var(--space-xs);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0.6;
    vertical-align: middle;
}

.reasoning-btn-small:hover {
    opacity: 1;
    transform: scale(1.1);
}

.reasoning-icon-small {
    font-size: 0.75rem;
    line-height: 1;
}

/* Reasoning Modal Overlay */
.reasoning-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: var(--space-lg);
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Reasoning Modal */
.reasoning-modal {
    background: var(--primary-800);
    border: 1px solid var(--primary-600);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    animation: slideIn 0.2s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.reasoning-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--primary-600);
    background: var(--primary-900);
}

.reasoning-modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--primary-100);
}

.reasoning-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--primary-400);
    cursor: pointer;
    font-size: 1.2rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.reasoning-modal-close:hover {
    background: var(--primary-700);
    color: var(--primary-100);
}

.reasoning-modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    color: var(--primary-200);
    line-height: 1.6;
}

.reasoning-modal-body p {
    margin: 0 0 var(--space-md) 0;
}

.reasoning-modal-body p:last-child {
    margin-bottom: 0;
}

/* Document analysis content styling */
.doc-analysis-content h4 {
    color: var(--primary-100);
    font-size: 0.95rem;
    margin: 0 0 var(--space-sm) 0;
    padding-top: var(--space-md);
}

.doc-analysis-content h4:first-child {
    padding-top: 0;
}

.doc-analysis-content ul {
    margin: 0 0 var(--space-md) 0;
    padding-left: var(--space-lg);
}

.doc-analysis-content li {
    margin-bottom: var(--space-xs);
    color: var(--primary-300);
}

.doc-analysis-content p {
    color: var(--primary-200);
}

/* =============================================================================
   Credit System Styles
   ============================================================================= */

/* Credit badge in navigation */
.nav-credits {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--primary-700);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-100);
}

.nav-credits.credits-low {
    background: var(--warning-600);
    color: var(--warning-100);
}

.nav-credits.credits-empty {
    background: var(--error-600);
    color: var(--error-100);
}

.nav-credits.credits-unlimited {
    background: var(--success-700);
    color: var(--success-100);
}

/* Credits warning alert on upload page */
.credits-warning {
    margin-bottom: var(--space-lg);
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    background: var(--primary-800);
    border: 1px solid var(--primary-600);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-600);
}

.alert-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-content strong {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--warning-200);
}

.alert-content p {
    margin: 0;
    color: var(--primary-300);
    font-size: 0.9rem;
}

/* Disabled panel overlay */
.disabled-panel {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.disabled-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    z-index: 10;
}

/* Rerun button container and counter */
.rerun-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.rerun-counter {
    font-size: 0.8rem;
    color: var(--primary-400);
    padding: var(--space-xs) var(--space-sm);
    background: var(--primary-700);
    border-radius: var(--radius-sm);
}

.rerun-counter.limit-reached {
    color: var(--error-300);
    background: rgba(239, 68, 68, 0.2);
}