/**
 * Ferritin Web - Styles
 * Color palette derived from logo: burgundy/wine bg with coral-to-rose gradient
 */

/* ============================================
   CSS Variables - Ferritin Brand Colors
   ============================================ */
:root {
    /* Primary: Coral/Rose gradient endpoints */
    --color-primary: #E8685A;
    --color-primary-hover: #D94F5E;
    --color-primary-light: #F5A58C;

    /* Background: Deep burgundy/wine */
    --color-bg: #1A0D12;
    --color-bg-light: #2D1A20;
    --color-bg-card: #3D252D;
    --color-bg-gradient: linear-gradient(135deg, #1A0D12 0%, #2D1520 50%, #1A0D12 100%);

    /* Text: Warm whites */
    --color-text: #FFF8F5;
    --color-text-muted: #C9A8A0;

    /* Borders & Accents */
    --color-border: #4D3540;
    --color-border-light: #5D4550;

    /* Semantic colors */
    --color-success: #6BCB77;
    --color-warning: #FFB86C;
    --color-error: #FF6B6B;

    /* Effects */
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px -4px rgba(0, 0, 0, 0.5);
    --glow: 0 0 40px rgba(232, 104, 90, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--color-bg-gradient);
    background-attachment: fixed;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--color-text);
    text-decoration: none;
}

a:hover {
    color: var(--color-primary);
}

/* ============================================
   Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 24px;
}

.section-alt {
    background: var(--color-bg-light);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    border-bottom: 1px solid var(--color-border);
    background: rgba(26, 13, 18, 0.95);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo-img {
    height: 36px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--color-text);
}

#api-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

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

.status-online {
    background: var(--color-success);
}

.status-offline {
    background: var(--color-error);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: 80px 24px 60px;
    text-align: center;
    overflow: hidden;
}

.hero-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 48px;
    max-width: 800px;
    margin: 0 auto;
}

.hero-visual {
    order: -1;
}

.hero-video {
    height: 300px;
    width: auto;
    border-radius: 16px;
    box-shadow:
        0 0 80px rgba(232, 104, 90, 0.3),
        0 30px 60px -20px rgba(0, 0, 0, 0.5);
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* ============================================
   Signup Form (Clean, minimal)
   ============================================ */
.signup-card {
    max-width: 440px;
    margin: 0 auto;
}

.signup-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 16px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-full {
    width: 100%;
}

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

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text);
}

.btn-secondary:hover {
    background: var(--color-border);
}

.signup-note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 16px;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    color: var(--color-error);
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.hidden {
    display: none !important;
}

/* ============================================
   Success Card
   ============================================ */
.success-card {
    background: var(--color-bg-light);
    border: 2px solid var(--color-success);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 520px;
    margin: 0 auto;
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.success-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.success-subtitle {
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.customer-id-box {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 16px;
}

.customer-id-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.env-badge {
    font-size: 0.625rem;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
    text-transform: uppercase;
}

.env-staging {
    background: var(--color-warning);
    color: #000;
}

.env-live {
    background: var(--color-success);
    color: #000;
}

.customer-id-value {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 1.25rem;
    color: var(--color-success);
    word-break: break-all;
}

.code-block {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 24px;
    text-align: left;
    overflow-x: auto;
}

.code-block-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.code-block pre {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    white-space: pre-wrap;
    word-break: break-all;
}

.btn-row {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn-row .btn {
    flex: 1;
}

/* ============================================
   Tools Section
   ============================================ */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: 48px;
    font-size: 1.1rem;
}

/* ============================================
   Kinetic Storytelling Sections
   ============================================ */
html {
    scroll-behavior: smooth;
}

.story-section {
    padding: 120px 0;
    background: var(--color-bg);
}

.story-section.dark {
    background: linear-gradient(180deg, #0a0507 0%, var(--color-bg) 100%);
}

.story-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.story-block {
    margin-bottom: 100px;
}

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

.story-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.story-headline {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--color-text);
}

.story-text {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text-muted);
    max-width: 700px;
}

.story-text em {
    color: var(--color-primary);
    font-style: normal;
}

/* Reveal animations on scroll */
.reveal {
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.js-loaded .reveal {
    opacity: 0;
    transform: translateY(40px);
}

.js-loaded .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Story cards */
.story-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 100px;
}

.story-card {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
}

.story-card.problem {
    background: rgba(255, 80, 80, 0.03);
    border-color: rgba(255, 80, 80, 0.2);
}

.story-card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.story-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--color-text);
}

.story-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Feature rows */
.story-features {
    margin-bottom: 100px;
}

.feature-row {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
}

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

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

.feature-content h4 {
    font-size: 1.2rem;
    margin-bottom: 4px;
    color: var(--color-text);
}

.feature-content p {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* Comparison grid */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 40px;
}

.comparison-col {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
}

.comparison-col.yours {
    background: rgba(255, 80, 80, 0.03);
    border-color: rgba(255, 80, 80, 0.2);
}

.comparison-col.ours {
    background: rgba(107, 203, 119, 0.05);
    border-color: rgba(107, 203, 119, 0.3);
}

.comparison-col h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--color-text);
}

.comparison-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-col li {
    padding: 8px 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.comparison-col li.total {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    font-weight: 700;
    font-size: 1.1rem;
}

.comparison-col.yours li.total {
    color: #ff6b6b;
}

.comparison-col.ours li.total {
    color: var(--color-success);
}

/* Tech badges */
.tech-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 32px;
}

.tech-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    padding: 12px 20px;
    border-radius: 100px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* Validation pipeline */
.validation-pipeline {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 60px 0;
}

.pipeline-step {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px 32px;
    width: 100%;
    max-width: 500px;
}

.pipeline-num {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.pipeline-content h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--color-text);
}

.pipeline-content p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}

.pipeline-connector {
    width: 2px;
    height: 24px;
    background: var(--color-primary);
    opacity: 0.5;
}

/* Coverage numbers */
.coverage-numbers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 60px 0;
}

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

.coverage-num {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.coverage-label {
    display: block;
    margin-top: 8px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* Citation scroll */
.citation-header {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.citation-scroll {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.citation-item {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: left;
}

.citation-item .citation-name {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}

.citation-item .citation-ref {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.citation-item .citation-link {
    font-size: 0.8rem;
    color: var(--color-primary);
    text-decoration: none;
}

.citation-item .citation-link:hover {
    text-decoration: underline;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .story-section {
        padding: 80px 0;
    }

    .story-block {
        margin-bottom: 60px;
    }

    .story-cards {
        grid-template-columns: 1fr;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .coverage-numbers {
        grid-template-columns: repeat(2, 1fr);
    }

    .citation-scroll {
        grid-template-columns: 1fr;
    }

    .feature-row {
        flex-direction: column;
        gap: 12px;
    }
}

/* ============================================
   Quick Start Section
   ============================================ */
.quickstart-steps {
    max-width: 700px;
    margin: 0 auto;
}

.qs-step {
    margin-bottom: 32px;
}

.qs-step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.qs-step-num {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.qs-step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.qs-step-desc {
    color: var(--color-text-muted);
    margin-bottom: 12px;
    margin-left: 44px;
    font-size: 0.95rem;
}

.code-card {
    background: #0d0d0d;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-left: 44px;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--color-border);
}

.code-lang {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.copy-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.copy-btn.copied {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

.code-content {
    padding: 16px;
    margin: 0;
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    overflow-x: auto;
    color: #e0e0e0;
}

/* Syntax highlighting */
.code-keyword { color: #ff79c6; }
.code-string { color: #f1fa8c; }
.code-key { color: #8be9fd; }
.code-comment { color: #6272a4; font-style: italic; }
.code-highlight {
    background: rgba(232, 104, 90, 0.3);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--color-primary);
}

.example-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-color: #2a2a4a;
}

.example-card .code-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom-color: #2a2a4a;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.tool-card {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    transition: border-color 0.2s;
}

.tool-card:hover {
    border-color: var(--color-primary);
}

.tool-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.tool-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.tool-description {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.tool-count {
    font-size: 0.75rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 700px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
}

.pricing-card.featured {
    border-color: var(--color-primary);
}

.pricing-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.pricing-card .price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 24px;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-muted);
}

.pricing-card ul {
    list-style: none;
}

.pricing-card li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
}

.pricing-card li:last-child {
    border-bottom: none;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    text-align: center;
    padding: 32px 24px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Loading State
   ============================================ */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Hero Enhancements (Clean, Developer-focused)
   ============================================ */
.hero-eyebrow {
    display: inline-block;
    color: var(--color-primary-light);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
    padding: 6px 12px;
    background: rgba(232, 104, 90, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(232, 104, 90, 0.2);
}

.value-props {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 40px;
}

.value-prop {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--color-border);
}

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

/* ============================================
   Trust Badges
   ============================================ */
.trust-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

.badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: default;
    transition: all 0.2s;
}

.badge:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-primary);
    color: var(--color-text);
}

.badge-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.badge:hover .badge-icon {
    opacity: 1;
}

/* Inline signup form */
.form-row {
    display: flex;
    gap: 8px;
    max-width: 420px;
    margin: 0 auto;
}

.form-row .form-input {
    flex: 1;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.form-row .btn {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    white-space: nowrap;
    padding: 12px 20px;
}

/* ============================================
   Tier Info
   ============================================ */
.tier-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    margin: 16px 0;
    font-size: 0.875rem;
}

.tier-badge {
    background: var(--color-success);
    color: #000;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    font-size: 0.875rem;
    margin-left: auto;
}

.btn-link:hover {
    text-decoration: underline;
}

/* ============================================
   Playground
   ============================================ */
.playground-card {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 520px;
    margin: 24px auto 0;
}

.playground-card h3 {
    margin-bottom: 8px;
}

.playground-subtitle {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.playground-controls {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.form-select {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 0.875rem;
}

.demo-result {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: 20px;
    min-height: 100px;
}

.demo-success {
    text-align: left;
}

.demo-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.demo-category {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary-light);
    background: rgba(232, 104, 90, 0.15);
    padding: 4px 8px;
    border-radius: 4px;
}

.demo-name {
    font-size: 1.1rem;
    font-weight: 600;
}

.demo-full-name {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.demo-purpose {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.demo-score-display {
    text-align: center;
    margin-bottom: 16px;
}

.demo-score-value {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
}

.demo-score-range {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.demo-risk-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 16px;
}

.demo-action {
    background: rgba(255, 255, 255, 0.05);
    padding: 12px;
    border-radius: 8px;
    font-size: 0.875rem;
    margin-bottom: 16px;
    border-left: 3px solid var(--color-primary);
}

.demo-action strong {
    color: var(--color-text-muted);
    font-weight: 500;
}

.demo-inputs {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.demo-inputs code {
    display: block;
    background: var(--color-bg-card);
    padding: 8px;
    border-radius: 4px;
    margin-top: 6px;
    font-size: 0.7rem;
    overflow-x: auto;
    white-space: pre;
}

.demo-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.demo-meta span:first-child {
    color: var(--color-success);
}

.demo-timing {
    color: var(--color-primary-light) !important;
    font-weight: 600;
}

.demo-stats {
    display: flex;
    justify-content: space-around;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
    border: 1px solid var(--color-border);
}

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

.demo-stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-light);
}

.demo-stat-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.demo-placeholder {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-align: center;
}

.demo-success {
    text-align: left;
}

.demo-score {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.demo-score strong {
    color: var(--color-primary);
}

.demo-interpretation {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.demo-recommendation {
    color: var(--color-success);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.demo-billing {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.demo-error {
    color: var(--color-error);
    font-size: 0.875rem;
}

/* ============================================
   Disclaimer
   ============================================ */
.disclaimer-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-bg);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius);
    padding: 24px;
}

.disclaimer-box p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.disclaimer-summary {
    background: rgba(245, 158, 11, 0.1);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 0 !important;
}

/* ============================================
   Footer Enhanced
   ============================================ */
.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.footer-logo {
    height: 48px;
    width: auto;
}

.footer-disclaimer {
    color: var(--color-warning);
    font-size: 0.75rem;
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-copy {
    font-size: 0.75rem;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .hero {
        padding: 48px 16px 40px;
    }

    .hero-video {
        height: 220px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .nav-links {
        display: none;
    }

    .section {
        padding: 48px 16px;
    }

    .btn-row {
        flex-direction: column;
    }

    .playground-controls {
        flex-direction: column;
    }

    .tier-info {
        flex-direction: column;
        text-align: center;
    }

    .btn-link {
        margin-left: 0;
    }

    .form-row {
        flex-direction: column;
    }

    .form-row .form-input,
    .form-row .btn {
        border-radius: var(--radius-sm);
        width: 100%;
    }

    .value-props {
        gap: 12px;
    }

    .value-prop {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

/* ============================================
   Validation Modal
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
    overflow-y: auto;
}

.modal-content {
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 28px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--color-primary);
}

.modal-content h2 {
    margin: 0 0 8px 0;
    color: var(--color-text);
}

.modal-subtitle {
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.validation-methodology h3,
.validation-coverage h3,
.validation-examples h3 {
    color: var(--color-primary-light);
    font-size: 1rem;
    margin: 24px 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.validation-layers {
    display: grid;
    gap: 12px;
}

.layer {
    background: var(--color-bg-card);
    padding: 16px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
    position: relative;
    padding-left: 50px;
}

.layer-num {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.85rem;
}

.coverage-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.stat {
    background: var(--color-bg-card);
    padding: 20px;
    border-radius: var(--radius-sm);
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.citation-card {
    background: var(--color-bg-card);
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    border-left: 3px solid var(--color-success);
}

.citation-name {
    font-weight: bold;
    color: var(--color-text);
    font-size: 1.1rem;
}

.citation-purpose {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin: 4px 0;
}

.citation-ref {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-top: 8px;
}

.citation-link {
    display: inline-block;
    margin-top: 8px;
    color: var(--color-primary);
    font-size: 0.85rem;
    text-decoration: none;
}

.citation-link:hover {
    text-decoration: underline;
}

/* ============================================
   About Modal
   ============================================ */
.about-modal {
    max-width: 700px;
}

.about-section {
    margin-bottom: 32px;
}

.about-section h3 {
    color: var(--color-text);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.about-section p {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 12px;
}

.about-section strong {
    color: var(--color-text);
}

.problem-box {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.problem-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: rgba(255, 100, 100, 0.05);
    border: 1px solid rgba(255, 100, 100, 0.2);
    border-radius: var(--radius-sm);
    padding: 16px;
}

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

.problem-item strong {
    display: block;
    color: var(--color-text);
    margin-bottom: 4px;
}

.problem-item p {
    margin: 0;
    font-size: 0.9rem;
}

.solution-list {
    list-style: none;
    padding: 0;
    margin: 16px 0;
}

.solution-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.solution-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

.solution-list li strong {
    color: var(--color-text);
}

@media (max-width: 768px) {
    .coverage-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-content {
        padding: 20px;
    }

    .problem-item {
        flex-direction: column;
        gap: 8px;
    }
}