/* ══════════════════════════════════════════════════════
   RetailPulse Landing – Nexus Analytics Dashboard
   Design System: #000 bg, #94A3B8 accent, Inter + JetBrains Mono
   ══════════════════════════════════════════════════════ */

/* ── Reset ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ── Design Tokens ── */
:root {
    --primary: #000000;
    --secondary: #94A3B8;
    --accent: #94A3B8;
    --background: #000000;
    --surface: rgba(148, 163, 184, 0.06);
    --surface-hover: rgba(148, 163, 184, 0.10);
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --border: rgba(203, 213, 225, 0.12);
    --border-hover: rgba(203, 213, 225, 0.25);

    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --radius-card: 14px;
    --radius-control: 14px;
    --radius-pill: 9999px;

    --space-base: 8px;
    --space-gap: 16px;
    --space-card: 24px;
    --space-section: 80px;

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --duration: 0.5s;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── WebGL Canvas ── */
#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* ── Reveal Animations ── */
.reveal-text,
.reveal-item {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease);
    transition-delay: var(--delay, 0s);
}

.reveal-text.visible,
.reveal-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Navigation ── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: all 0.3s var(--ease);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-card);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
}

.logo-text {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--surface) !important;
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: var(--radius-control);
    color: var(--text-primary) !important;
    font-weight: 500 !important;
    transition: all 0.2s var(--ease) !important;
}

.nav-cta:hover {
    background: var(--surface-hover) !important;
    border-color: var(--border-hover);
}

/* ── Hero ── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 140px var(--space-card) var(--space-section);
    z-index: 1;
}

.hero-container {
    max-width: 720px;
}

.hero-eyebrow {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 32px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: var(--surface);
    color: var(--secondary);
    border: 1px solid var(--border);
}

.badge-outline {
    background: transparent;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 500;
    line-height: 1.04;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.hero-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 520px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-control);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s var(--ease);
    border: none;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--background);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
}

.btn-ghost {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

/* ── Metrics Strip ── */
.metrics-strip {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.metrics-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px var(--space-card);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
}

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

.metric-value {
    display: block;
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.metric-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

.metric-divider {
    width: 1px;
    height: 32px;
    background: var(--border);
}

/* ── Section Common ── */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-card);
}

.section-header {
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    padding: 4px 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
}

.section-title {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 480px;
}

/* ── Bento Grid ── */
.bento-section {
    padding: var(--space-section) 0;
    position: relative;
    z-index: 1;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
}

.bento-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: var(--space-card);
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.bento-card:hover {
    border-color: var(--border-hover);
    background: var(--surface-hover);
    transform: translateY(-2px);
}

.bento-large {
    grid-column: 1 / 3;
    grid-row: 1 / 2;
}

.bento-wide {
    grid-column: 1 / -1;
}

.card-header {
    margin-bottom: 16px;
}

.card-title-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.card-badge {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
}

.card-badge-green {
    background: rgba(16, 185, 129, 0.12);
    color: #34D399;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.card-badge-amber {
    background: rgba(245, 158, 11, 0.12);
    color: #FBBF24;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.card-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.card-footer {
    display: flex;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    margin-top: 16px;
}

.card-stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 2px;
}

.card-stat-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ── Chart Area ── */
.chart-area {
    height: 180px;
    margin: 0 -8px;
}

.chart-area canvas {
    width: 100%;
    height: 100%;
}

/* ── Metric Display ── */
.metric-display {
    text-align: center;
    padding: 20px 0;
}

.metric-big {
    display: block;
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
}

.metric-unit {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 6px;
}

/* ── Mini Table ── */
.mini-table {
    margin: 12px 0;
}

.mini-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}

.mini-row:last-child {
    border-bottom: none;
}

.mini-label {
    color: var(--text-secondary);
}

.mini-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 12px;
}

/* ── Donut Chart ── */
.donut-chart-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 160px;
    margin: 8px 0;
}

.donut-chart-container canvas {
    max-width: 160px;
    max-height: 160px;
}

/* ── Inventory Stats ── */
.inventory-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 16px 0;
}

.inv-stat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.inv-bar {
    height: 6px;
    background: var(--border);
    border-radius: var(--radius-pill);
    position: relative;
    overflow: hidden;
}

.inv-bar::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: var(--fill);
    background: var(--secondary);
    border-radius: var(--radius-pill);
    transition: width 1s var(--ease);
}

.inv-info {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.inv-label {
    color: var(--text-secondary);
}

.inv-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 12px;
}

/* ── Pills / Tags ── */
.card-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
}

.pill {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ── Pipeline Flow ── */
.pipeline-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0;
    margin: 20px 0;
    overflow-x: auto;
    padding: 8px 0;
}

.pipeline-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.node-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 20px;
    transition: all 0.25s var(--ease);
}

.pipeline-node:hover .node-icon {
    border-color: var(--border-hover);
    background: var(--surface-hover);
    transform: translateY(-2px);
}

.node-label {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.pipeline-connector {
    flex: 1;
    height: 1px;
    background: var(--border);
    min-width: 20px;
    margin-top: -20px;
}

/* ── CTA Section ── */
.cta-section {
    padding: var(--space-section) 0;
    position: relative;
    z-index: 1;
}

.cta-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.cta-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin: 12px 0;
}

.cta-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 28px;
}

.cta-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.stack-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 16px;
    transition: all 0.25s var(--ease);
}

.stack-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.stack-icon {
    font-size: 24px;
}

.stack-name {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.stack-desc {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
}

/* ── Tech Stack Grid ── */
.stack-section {
    padding: var(--space-section) 0;
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.tech-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    transition: all 0.25s var(--ease);
}

.tech-card:hover {
    border-color: var(--border-hover);
    background: var(--surface-hover);
    transform: translateY(-3px);
}

.tech-icon {
    font-size: 28px;
}

.tech-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.tech-role {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ── Results / Data Tables ── */
.results-section {
    padding: var(--space-section) 0;
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
}

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

.result-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: var(--space-card);
    transition: all 0.3s var(--ease);
}

.result-panel:hover {
    border-color: var(--border-hover);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.panel-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.panel-badge {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 10px 0;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}

.data-table th {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding-bottom: 12px;
}

.data-table td {
    color: var(--text-secondary);
}

.data-table .mono {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 12px;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.row-highlight td {
    color: var(--text-primary) !important;
    font-weight: 500;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-active {
    background: var(--secondary);
    box-shadow: 0 0 6px rgba(148, 163, 184, 0.4);
}

.status-best {
    background: #34D399;
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.5);
}

/* ── Footer ── */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 13px;
}

.footer-text strong {
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: 8px;
    align-items: center;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-dot {
    color: var(--border);
    font-size: 12px;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-large {
        grid-column: 1 / -1;
    }
    .bento-wide {
        grid-column: 1 / -1;
    }
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .cta-card {
        grid-template-columns: 1fr;
        padding: 36px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 40px;
    }
    .bento-grid {
        grid-template-columns: 1fr;
    }
    .bento-large {
        grid-column: 1;
    }
    .results-grid {
        grid-template-columns: 1fr;
    }
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .metrics-container {
        gap: 24px;
        flex-wrap: wrap;
    }
    .metric-divider {
        display: none;
    }
    .nav-links {
        display: none;
    }
    .section-title {
        font-size: 28px;
    }
    .pipeline-flow {
        gap: 4px;
    }
    .cta-stack {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .btn {
        justify-content: center;
    }
    .tech-grid {
        grid-template-columns: 1fr 1fr;
    }
    .card-footer {
        flex-wrap: wrap;
        gap: 16px;
    }
}