/**
 * CrownateStudio QS & BOQ Cost Intelligence — Application 06
 * Styling (css/qs-boq.css)
 *
 * Professional, intelligent, precise, calm, trustworthy Quantity Surveying design system.
 * Deep obsidian navy: #070b14, #0d1527, Elevated: #131f38,
 * Accent Gold: #c5a059, Subtle Steel Blue: #3b82f6, Construction Amber: #d97706
 */

:root {
    --qs-bg-page: #070b14;
    --qs-bg-surface: #0d1527;
    --qs-bg-elevated: #131f38;
    --qs-bg-card: #111a2e;
    --qs-bg-glass: rgba(13, 21, 39, 0.85);
    --qs-border: rgba(197, 160, 89, 0.22);
    --qs-border-light: rgba(255, 255, 255, 0.08);
    --qs-border-subtle: rgba(255, 255, 255, 0.04);
    --qs-gold: #c5a059;
    --qs-gold-glow: rgba(197, 160, 89, 0.25);
    --qs-text-main: #f8fafc;
    --qs-text-secondary: #94a3b8;
    --qs-text-muted: #64748b;
    --qs-danger: #ef4444;
    --qs-danger-bg: rgba(239, 68, 68, 0.12);
    --qs-danger-border: rgba(239, 68, 68, 0.35);
    --qs-warning: #f59e0b;
    --qs-warning-bg: rgba(245, 158, 11, 0.12);
    --qs-warning-border: rgba(245, 158, 11, 0.35);
    --qs-success: #10b981;
    --qs-success-bg: rgba(16, 185, 129, 0.12);
    --qs-success-border: rgba(16, 185, 129, 0.35);
    --qs-blue: #3b82f6;
    --qs-blue-bg: rgba(59, 130, 246, 0.12);
    --qs-blue-border: rgba(59, 130, 246, 0.35);
    --qs-radius: 12px;
    --qs-radius-sm: 8px;
    --qs-radius-lg: 16px;
    --qs-font-mono: 'JetBrains Mono', monospace, Consolas, sans-serif;
}

body.qs-boq-page {
    background-color: var(--qs-bg-page);
    color: var(--qs-text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

/* Container */
.qs-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 5rem 1.25rem;
}

/* Top Navigation */
.qs-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0 1.75rem 0;
    border-bottom: 1px solid var(--qs-border-light);
    margin-bottom: 2rem;
}

.qs-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: inherit;
}

.qs-brand-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border: 1px solid var(--qs-border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.qs-brand-title {
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
    color: #ffffff;
    display: block;
}

.qs-brand-badge {
    font-size: 0.72rem;
    color: var(--qs-gold);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.qs-top-nav {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.qs-nav-link {
    color: var(--qs-text-secondary);
    text-decoration: none;
    font-size: 0.86rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.qs-nav-link:hover {
    color: #ffffff;
}

/* Hero Section */
.qs-hero {
    text-align: center;
    padding: 2.5rem 1rem 3.5rem 1rem;
    position: relative;
}

.qs-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.9rem;
    background: rgba(197, 160, 89, 0.1);
    border: 1px solid var(--qs-border);
    border-radius: 9999px;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--qs-gold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.qs-hero h1 {
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    font-weight: 900;
    line-height: 1.15;
    margin: 0 0 1rem 0;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.qs-hero-sub {
    font-size: 1.2rem;
    color: var(--qs-gold);
    font-weight: 600;
    margin: 0 0 0.85rem 0;
}

.qs-hero-tertiary {
    font-size: 0.98rem;
    color: var(--qs-text-secondary);
    max-width: 760px;
    margin: 0 auto 2rem auto;
    line-height: 1.6;
}

.qs-hero-ctas {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* Primary & Secondary Buttons */
.btn-qs-primary {
    background: linear-gradient(135deg, #c5a059, #a8843c);
    color: #070b14;
    font-weight: 700;
    font-size: 0.92rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--qs-radius-sm);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 4px 14px var(--qs-gold-glow);
}

.btn-qs-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(197, 160, 89, 0.45);
}

.btn-qs-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.92rem;
    padding: 0.85rem 1.5rem;
    border-radius: var(--qs-radius-sm);
    border: 1px solid var(--qs-border-light);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.2s, border-color 0.2s;
}

.btn-qs-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-qs-outline-gold {
    background: transparent;
    color: var(--qs-gold);
    border: 1px solid var(--qs-border);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 0.75rem 1.35rem;
    border-radius: var(--qs-radius-sm);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-qs-outline-gold:hover {
    background: rgba(197, 160, 89, 0.1);
    border-color: var(--qs-gold);
}

/* Statutory Disclaimer Banner */
.qs-disclaimer-banner {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-left: 4px solid var(--qs-warning);
    border-radius: var(--qs-radius-sm);
    padding: 1rem 1.25rem;
    margin-bottom: 2.25rem;
    font-size: 0.84rem;
    color: #fef3c7;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.qs-disclaimer-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    line-height: 1;
}

/* Sections Common Layout */
.qs-section {
    margin-bottom: 3.5rem;
}

.qs-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--qs-border-light);
    flex-wrap: wrap;
    gap: 1rem;
}

.qs-section-title-wrap h2 {
    font-size: 1.45rem;
    font-weight: 800;
    color: #ffffff;
    margin: 0 0 0.35rem 0;
    letter-spacing: -0.01em;
}

.qs-section-desc {
    color: var(--qs-text-secondary);
    font-size: 0.88rem;
    margin: 0;
}

/* SECTION 01: Workstation Card (Upload / Build) */
.qs-workstation {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border);
    border-radius: var(--qs-radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.qs-workstation-tabs {
    display: flex;
    border-bottom: 1px solid var(--qs-border-light);
    background: rgba(0, 0, 0, 0.25);
}

.qs-tab-btn {
    flex: 1;
    padding: 1.15rem 1rem;
    background: transparent;
    border: none;
    color: var(--qs-text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    transition: color 0.2s, background 0.2s, border-bottom 0.2s;
    border-bottom: 3px solid transparent;
}

.qs-tab-btn.active {
    color: #ffffff;
    background: var(--qs-bg-surface);
    border-bottom: 3px solid var(--qs-gold);
}

.qs-tab-panel {
    display: none;
    padding: 2rem 1.75rem;
}

.qs-tab-panel.active {
    display: block;
}

/* Upload Dropzone */
.qs-dropzone {
    border: 2px dashed rgba(197, 160, 89, 0.35);
    background: rgba(19, 31, 56, 0.5);
    border-radius: var(--qs-radius);
    padding: 2.75rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.qs-dropzone:hover, .qs-dropzone.dragover {
    border-color: var(--qs-gold);
    background: rgba(197, 160, 89, 0.05);
}

.qs-dropzone-icon {
    font-size: 2.75rem;
    margin-bottom: 0.85rem;
}

.qs-dropzone-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.35rem;
}

.qs-dropzone-sub {
    font-size: 0.85rem;
    color: var(--qs-text-secondary);
    margin-bottom: 1.25rem;
}

.qs-raw-paste-wrap {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--qs-border-light);
}

.qs-raw-paste-wrap textarea {
    width: 100%;
    min-height: 120px;
    background: #090e1a;
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius-sm);
    color: #ffffff;
    font-family: var(--qs-font-mono);
    font-size: 0.85rem;
    padding: 0.85rem;
    box-sizing: border-box;
    resize: vertical;
}

/* Project Metadata Form */
.qs-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.75rem;
    background: var(--qs-bg-elevated);
    padding: 1.25rem;
    border-radius: var(--qs-radius);
    border: 1px solid var(--qs-border-light);
}

.qs-field label {
    display: block;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--qs-text-secondary);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.qs-input, .qs-select {
    width: 100%;
    background: #070b14;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--qs-radius-sm);
    color: #ffffff;
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.qs-input:focus, .qs-select:focus {
    outline: none;
    border-color: var(--qs-gold);
}

/* Build BOQ Table */
.qs-builder-table-wrap {
    overflow-x: auto;
    margin-bottom: 1.25rem;
}

.qs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
    text-align: left;
}

.qs-table th {
    background: #090e1a;
    color: var(--qs-text-secondary);
    font-weight: 700;
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 0.85rem;
    border-bottom: 1px solid var(--qs-border-light);
    white-space: nowrap;
}

.qs-table td {
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--qs-border-subtle);
    vertical-align: middle;
}

.qs-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.qs-table input, .qs-table select {
    background: #070b14;
    border: 1px solid var(--qs-border-light);
    border-radius: 6px;
    color: #ffffff;
    padding: 0.45rem 0.6rem;
    font-size: 0.85rem;
    box-sizing: border-box;
    width: 100%;
}

.qs-table input:focus, .qs-table select:focus {
    border-color: var(--qs-gold);
    outline: none;
}

/* SECTION 02: Cost at a Glance Score Cards */
.qs-glance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.qs-card-glance {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius);
    padding: 1.35rem 1.25rem;
    position: relative;
    overflow: hidden;
}

.qs-card-glance.highlight-gold {
    border-color: var(--qs-border);
    box-shadow: 0 4px 20px rgba(197, 160, 89, 0.08);
}

.qs-glance-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--qs-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}

.qs-glance-val {
    font-size: 1.65rem;
    font-weight: 900;
    color: #ffffff;
    font-family: var(--qs-font-mono);
    line-height: 1.2;
}

.qs-glance-meta {
    font-size: 0.78rem;
    color: var(--qs-text-muted);
    margin-top: 0.35rem;
}

/* Review Index Gauge */
.qs-review-index-box {
    background: var(--qs-bg-elevated);
    border: 1px solid var(--qs-border);
    border-radius: var(--qs-radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.qs-index-score-display {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.qs-index-num {
    font-size: 2.75rem;
    font-weight: 900;
    font-family: var(--qs-font-mono);
    line-height: 1;
}

.qs-index-status-pill {
    padding: 0.4rem 0.95rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: inline-block;
}

/* Status Colors & Badges */
.badge-within-range {
    background: var(--qs-success-bg);
    color: var(--qs-success);
    border: 1px solid var(--qs-success-border);
}

.badge-review {
    background: var(--qs-warning-bg);
    color: var(--qs-warning);
    border: 1px solid var(--qs-warning-border);
}

.badge-significant-review {
    background: var(--qs-danger-bg);
    color: var(--qs-danger);
    border: 1px solid var(--qs-danger-border);
}

.badge-below-verify {
    background: var(--qs-blue-bg);
    color: var(--qs-blue);
    border: 1px solid var(--qs-blue-border);
}

.badge-insufficient-data {
    background: rgba(100, 116, 139, 0.15);
    color: #94a3b8;
    border: 1px solid rgba(100, 116, 139, 0.3);
}

/* SECTION 03: Where is the money going? Breakdown */
.qs-breakdown-container {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius);
    padding: 1.75rem;
}

.qs-breakdown-bar-wrap {
    height: 24px;
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    background: #090e1a;
    margin-bottom: 1.5rem;
}

.qs-breakdown-segment {
    height: 100%;
    transition: opacity 0.2s;
    position: relative;
}

.qs-breakdown-segment:hover {
    opacity: 0.85;
}

.qs-phase-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.qs-phase-card {
    background: var(--qs-bg-elevated);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius-sm);
    padding: 1rem 1.15rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.qs-phase-card:hover {
    border-color: var(--qs-border);
    background: #162442;
}

.qs-phase-info-title {
    font-weight: 700;
    font-size: 0.88rem;
    color: #ffffff;
    margin-bottom: 0.2rem;
}

.qs-phase-info-meta {
    font-size: 0.74rem;
    color: var(--qs-text-muted);
}

.qs-phase-amount {
    font-family: var(--qs-font-mono);
    font-weight: 800;
    font-size: 0.95rem;
    color: var(--qs-gold);
    text-align: right;
}

/* SECTION 04: Top Price Review Items */
.qs-review-cards-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.qs-review-item-card {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border-light);
    border-left: 4px solid var(--qs-gold);
    border-radius: var(--qs-radius);
    padding: 1.5rem;
    transition: transform 0.15s ease;
}

.qs-review-item-card.significant {
    border-left-color: var(--qs-danger);
}

.qs-review-item-card.moderate {
    border-left-color: var(--qs-warning);
}

.qs-item-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.qs-item-card-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.qs-item-card-spec {
    font-size: 0.84rem;
    color: var(--qs-text-secondary);
}

.qs-item-metrics-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    background: #090e1a;
    padding: 0.85rem 1rem;
    border-radius: var(--qs-radius-sm);
    margin-bottom: 1rem;
}

.qs-strip-metric-label {
    font-size: 0.68rem;
    color: var(--qs-text-muted);
    text-transform: uppercase;
    font-weight: 700;
}

.qs-strip-metric-val {
    font-size: 0.95rem;
    font-weight: 800;
    font-family: var(--qs-font-mono);
    color: #ffffff;
}

.qs-item-reasons-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius-sm);
    padding: 1rem;
    margin-bottom: 0.85rem;
    font-size: 0.84rem;
}

.qs-reasons-title {
    font-weight: 700;
    color: var(--qs-gold);
    margin-bottom: 0.4rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* SECTION 05: Market Price Intelligence Search */
.qs-market-search-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.qs-market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.qs-material-market-card {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius);
    padding: 1.35rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: border-color 0.2s;
}

.qs-material-market-card:hover {
    border-color: var(--qs-border);
}

.qs-mat-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.35rem;
}

.qs-mat-meta {
    font-size: 0.78rem;
    color: var(--qs-text-muted);
    margin-bottom: 1rem;
}

.qs-mat-price-tag {
    font-size: 1.45rem;
    font-weight: 900;
    font-family: var(--qs-font-mono);
    color: var(--qs-gold);
    margin-bottom: 0.35rem;
}

.qs-mat-source-row {
    font-size: 0.74rem;
    color: var(--qs-text-secondary);
    border-top: 1px solid var(--qs-border-subtle);
    padding-top: 0.75rem;
    margin-top: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* SECTION 06: Contractor Quote Comparison */
.qs-contractor-compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.qs-contractor-card {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius);
    padding: 1.5rem;
}

.qs-contractor-card.recommended {
    border-color: var(--qs-border);
    box-shadow: 0 4px 20px rgba(197, 160, 89, 0.15);
}

/* SECTION 08: Negotiation Questions */
.qs-negotiation-box {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border);
    border-radius: var(--qs-radius);
    padding: 1.75rem;
}

.qs-question-item {
    background: var(--qs-bg-elevated);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius-sm);
    padding: 0.95rem 1.15rem;
    margin-bottom: 0.85rem;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    font-size: 0.88rem;
}

.qs-q-num {
    font-family: var(--qs-font-mono);
    font-weight: 800;
    color: var(--qs-gold);
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* SEO Educational Accordion */
.qs-faq-wrap {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.qs-faq-item {
    background: var(--qs-bg-surface);
    border: 1px solid var(--qs-border-light);
    border-radius: var(--qs-radius-sm);
    overflow: hidden;
}

.qs-faq-trigger {
    padding: 1.15rem 1.25rem;
    font-weight: 700;
    font-size: 0.95rem;
    color: #ffffff;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.qs-faq-body {
    padding: 0 1.25rem 1.25rem 1.25rem;
    color: var(--qs-text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* Responsive Rules */
@media (max-width: 768px) {
    .qs-top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .qs-hero h1 {
        font-size: 2.1rem;
    }
    .qs-workstation-tabs {
        flex-direction: column;
    }
    .qs-tab-panel {
        padding: 1.25rem 1rem;
    }
    .qs-review-index-box {
        flex-direction: column;
        align-items: flex-start;
    }
}