/* ─── SYNAPSE Landing Page — Shared Styles ─── */

:root {
    --bg-primary: #0a0a0c;
    --bg-secondary: #111116;
    --bg-card: #16161c;
    --bg-card-hover: #1c1c24;
    --text-primary: #e8e6e1;
    --text-secondary: #9a9890;
    --text-muted: #5c5b56;
    --accent: #c4f04d;
    --accent-dim: #8fb830;
    --accent-glow: rgba(196, 240, 77, 0.08);
    --accent-border: rgba(196, 240, 77, 0.15);
    --border: #222228;
    --border-light: #2a2a32;
    --serif: 'DM Serif Display', Georgia, serif;
    --sans: 'Instrument Sans', -apple-system, sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--sans); background: var(--bg-primary); color: var(--text-primary);
    line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
::selection { background: var(--accent); color: var(--bg-primary); }

/* ─── Navigation ─── */

nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 1.25rem 2.5rem; display: flex; justify-content: space-between; align-items: center;
    background: rgba(10, 10, 12, 0.85); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--sans); font-weight: 700; font-size: 1.1rem; letter-spacing: 0.15em; color: var(--text-primary); text-decoration: none; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; align-items: center; }
.nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.85rem; font-weight: 500; letter-spacing: 0.03em; transition: color 0.2s; }
.nav-links a:hover { color: var(--text-primary); }
.nav-cta { background: var(--accent) !important; color: var(--bg-primary) !important; padding: 0.5rem 1.25rem; border-radius: 4px; font-weight: 600 !important; transition: opacity 0.2s !important; }
.nav-cta:hover { opacity: 0.85; }
.nav-mobile-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }
.nav-lang { border-left: 1px solid var(--border-light); padding-left: 1.5rem; margin-left: 0.5rem; font-weight: 600 !important; letter-spacing: 0.08em !important; }

/* ─── Hero ─── */

.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 8rem 2.5rem 4rem; max-width: 1200px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: var(--accent-glow); border: 1px solid var(--accent-border); padding: 0.4rem 1rem; border-radius: 100px; font-size: 0.8rem; font-weight: 500; color: var(--accent); width: fit-content; margin-bottom: 2.5rem; animation: fadeInUp 0.8s ease both; }
.hero-badge .pulse { width: 7px; height: 7px; background: var(--accent); border-radius: 50%; animation: pulse 2s ease-in-out infinite; }
.hero h1 { font-family: var(--serif); font-size: clamp(2.8rem, 6.5vw, 5.2rem); line-height: 1.08; font-weight: 400; max-width: 900px; animation: fadeInUp 0.8s ease 0.1s both; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-sub { font-size: 1.2rem; color: var(--text-secondary); max-width: 620px; margin-top: 2rem; line-height: 1.7; animation: fadeInUp 0.8s ease 0.2s both; }
.hero-actions { display: flex; gap: 1rem; margin-top: 3rem; flex-wrap: wrap; animation: fadeInUp 0.8s ease 0.3s both; }

/* ─── Buttons ─── */

.btn-primary { background: var(--accent); color: var(--bg-primary); padding: 0.85rem 2rem; border: none; border-radius: 4px; font-size: 0.95rem; font-weight: 600; font-family: var(--sans); cursor: pointer; text-decoration: none; transition: all 0.2s; display: inline-flex; align-items: center; gap: 0.5rem; }
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text-primary); padding: 0.85rem 2rem; border: 1px solid var(--border-light); border-radius: 4px; font-size: 0.95rem; font-weight: 500; font-family: var(--sans); cursor: pointer; text-decoration: none; transition: all 0.2s; }
.btn-secondary:hover { border-color: var(--text-muted); }

/* ─── Hero Proof ─── */

.hero-proof { display: flex; gap: 3rem; margin-top: 4rem; padding-top: 2.5rem; border-top: 1px solid var(--border); flex-wrap: wrap; animation: fadeInUp 0.8s ease 0.45s both; }
.hero-proof-item { display: flex; flex-direction: column; }
.hero-proof-item strong { font-family: var(--serif); font-size: 1.8rem; color: var(--accent); }
.hero-proof-item span { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.2rem; text-transform: uppercase; letter-spacing: 0.08em; }

/* ─── Sections ─── */

section { padding: 7rem 2.5rem; max-width: 1200px; margin: 0 auto; }
.section-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--accent); font-weight: 600; margin-bottom: 1.5rem; }
.section-title { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.15; max-width: 700px; margin-bottom: 1.5rem; }
.section-subtitle { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; line-height: 1.7; margin-bottom: 3.5rem; }

/* ─── Problem Section ─── */

.problem-section { border-top: 1px solid var(--border); }
.problem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.problem-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 2.25rem; transition: all 0.3s ease; }
.problem-card:hover { border-color: var(--border-light); background: var(--bg-card-hover); }
.problem-card .card-number { font-family: var(--serif); font-size: 2rem; color: var(--text-muted); opacity: 0.4; margin-bottom: 1rem; }
.problem-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.75rem; }
.problem-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.65; }

/* ─── Reframe Section ─── */

.reframe-section { border-top: 1px solid var(--border); }
.reframe-block { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px; padding: 4rem; position: relative; overflow: hidden; }
.reframe-block::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); }
.reframe-columns { display: grid; grid-template-columns: 1fr 40px 1fr; gap: 2rem; align-items: start; }
.reframe-col h3 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 1.5rem; font-weight: 600; }
.reframe-col.old h3 { color: var(--text-muted); }
.reframe-col.new h3 { color: var(--accent); }
.reframe-col p { font-family: var(--serif); font-size: 1.55rem; line-height: 1.4; }
.reframe-col.old p { color: var(--text-muted); }
.reframe-col.new p { color: var(--text-primary); }
.reframe-arrow { display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--accent); padding-top: 2rem; }

/* ─── Scenario Section ─── */

.scenario-section { border-top: 1px solid var(--border); }
.scenario-timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.scenario-timeline::before {
    content: ''; position: absolute; top: 2.75rem; left: 2rem; right: 2rem; height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dim), var(--accent));
    opacity: 0.3; z-index: 0;
}
.scenario-step { padding: 2rem 1.5rem; position: relative; z-index: 1; }
.scenario-time { font-family: var(--serif); font-size: 1.1rem; color: var(--accent); margin-bottom: 0.25rem; }
.scenario-dot { width: 10px; height: 10px; background: var(--accent); border-radius: 50%; margin-bottom: 1rem; box-shadow: 0 0 12px rgba(196, 240, 77, 0.4); }
.scenario-step h3 { font-size: 0.92rem; font-weight: 600; margin-bottom: 0.5rem; }
.scenario-step p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.55; }
.scenario-step.scenario-resolved h3 { color: var(--accent); }
.scenario-punchline {
    margin-top: 2rem; padding: 1.25rem 2rem; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 8px; font-size: 0.9rem; color: var(--text-secondary); text-align: center;
}
.scenario-punchline strong { color: var(--text-primary); }

/* ─── Approach Section (3-Layer Architecture) ─── */

.approach-section { border-top: 1px solid var(--border); }
.approach-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.flow-step { padding: 2.5rem 2rem; border-right: 1px solid var(--border); transition: background 0.3s; }
.flow-step:last-child { border-right: none; }
.flow-step:hover { background: var(--bg-card); }
.flow-step-number { font-family: var(--serif); font-size: 3rem; color: var(--accent); opacity: 0.3; line-height: 1; margin-bottom: 1.25rem; }
.flow-step h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.75rem; }
.flow-step h3 .layer-tag { font-size: 0.7rem; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; display: block; margin-bottom: 0.25rem; }
.flow-step p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.feedback-loop { grid-column: 1 / -1; padding: 1.25rem 2rem; background: var(--bg-card); border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: center; gap: 0.75rem; font-size: 0.85rem; color: var(--accent); font-weight: 500; }
.feedback-loop .loop-arrow { font-size: 1.1rem; }

/* ─── Impact Section ─── */

.impact-section { border-top: 1px solid var(--border); }
.impact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.impact-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 2.25rem; text-align: center; transition: all 0.3s; }
.impact-card:hover { border-color: var(--accent-border); background: var(--bg-card-hover); }
.impact-card .impact-number { font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3.2rem); color: var(--accent); line-height: 1; margin-bottom: 0.75rem; }
.impact-card .impact-label { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; }
.impact-card .impact-detail { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.5rem; }
.impact-note { margin-top: 1.5rem; font-size: 0.78rem; color: var(--text-muted); text-align: center; font-style: italic; }

/* ─── Framework Section ─── */

.framework-section { border-top: 1px solid var(--border); }
.framework-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.framework-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 2.25rem; transition: all 0.3s; }
.framework-card:hover { border-color: var(--border-light); background: var(--bg-card-hover); }
.framework-card .card-icon { font-size: 1.6rem; margin-bottom: 1.25rem; display: block; }
.framework-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.6rem; }
.framework-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* Metrics categories (inside the metrics framework card) */
.metrics-categories { display: flex; gap: 1.25rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.metric-cat h4 { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 600; margin-bottom: 0.3rem; }
.metric-cat p { font-size: 0.78rem; color: var(--text-muted); line-height: 1.45; }

/* ─── Mid-CTA ─── */

.mid-cta { border-top: 1px solid var(--border); text-align: center; padding: 4rem 2.5rem; max-width: 1200px; margin: 0 auto; }
.mid-cta p { font-size: 1.05rem; color: var(--text-secondary); }
.mid-cta strong { color: var(--text-primary); }
.mid-cta a { color: var(--accent); text-decoration: none; font-weight: 500; transition: opacity 0.2s; }
.mid-cta a:hover { opacity: 0.8; }

/* ─── Platform Section ─── */

.platform-section { border-top: 1px solid var(--border); }
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.platform-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: all 0.3s; }
.platform-card:hover { border-color: var(--border-light); background: var(--bg-card-hover); }
.platform-card-content { padding: 1.75rem; }
.platform-card-content h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.platform-card-content p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ─── CSS Mockups ─── */

.mockup { height: 180px; background: #f9fafb; border-bottom: 1px solid var(--border); padding: 1.25rem; position: relative; overflow: hidden; }

/* Chat mockup */
.mockup-chat { display: flex; flex-direction: column; justify-content: flex-end; gap: 0.5rem; }
.mockup-bubble { padding: 0.4rem 0.75rem; border-radius: 8px; font-size: 0; max-width: 65%; }
.mockup-bubble-ai { background: #ffffff; border: 1px solid #e5e7eb; align-self: flex-start; height: 28px; border-radius: 8px 8px 8px 2px; }
.mockup-bubble-ai.wide { width: 75%; height: 36px; }
.mockup-bubble-user { background: #0284c7; opacity: 0.85; align-self: flex-end; height: 24px; width: 50%; border-radius: 8px 8px 2px 8px; }
.mockup-input { margin-top: 0.5rem; height: 28px; background: #ffffff; border: 1px solid #e5e7eb; border-radius: 6px; display: flex; align-items: center; justify-content: flex-end; padding-right: 0.5rem; }
.mockup-send { width: 18px; height: 18px; background: #0284c7; border-radius: 4px; opacity: 0.8; }

/* Knowledge graph mockup */
.mockup-graph { position: relative; }
.mockup-node { position: absolute; width: 14px; height: 14px; border-radius: 50%; }
.mockup-node.purple { background: #8b5cf6; }
.mockup-node.blue { background: #3b82f6; }
.mockup-node.green { background: #10b981; }
.mockup-node.orange { background: #f59e0b; }
.mockup-edge { position: absolute; height: 1px; background: #d1d5db; transform-origin: left center; }

/* Dashboard mockup */
.mockup-dashboard {}
.mockup-dash-hero { height: 36px; background: linear-gradient(135deg, #7c3aed, #8b5cf6); border-radius: 6px; margin-bottom: 0.75rem; }
.mockup-dash-stats { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.mockup-dash-stat { flex: 1; height: 40px; background: #ffffff; border: 1px solid #e5e7eb; border-radius: 4px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; }
.mockup-dash-stat-num { width: 20px; height: 6px; background: #0284c7; border-radius: 2px; opacity: 0.8; }
.mockup-dash-stat-label { width: 28px; height: 3px; background: #d1d5db; border-radius: 2px; }
.mockup-dash-bar { height: 8px; background: #e5e7eb; border-radius: 4px; margin-bottom: 0.4rem; overflow: hidden; }
.mockup-dash-bar-fill { height: 100%; border-radius: 4px; }
.mockup-dash-bar-fill.good { background: #10b981; width: 78%; }
.mockup-dash-bar-fill.mid { background: #f59e0b; width: 52%; }
.mockup-dash-bar-fill.high { background: #0284c7; width: 88%; }

/* Daily brief mockup */
.mockup-brief {}
.mockup-brief-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.mockup-brief-icon { width: 24px; height: 24px; background: #0284c7; opacity: 0.7; border-radius: 4px; }
.mockup-brief-title { width: 80px; height: 8px; background: #e5e7eb; border-radius: 2px; }
.mockup-brief-badge { padding: 2px 8px; background: rgba(16, 185, 129, 0.2); border: 1px solid rgba(16, 185, 129, 0.3); border-radius: 100px; width: fit-content; margin-left: auto; }
.mockup-brief-badge-dot { width: 24px; height: 5px; background: #10b981; border-radius: 2px; }
.mockup-brief-line { height: 5px; background: #e5e7eb; border-radius: 2px; margin-bottom: 0.6rem; }
.mockup-brief-line.w80 { width: 80%; }
.mockup-brief-line.w65 { width: 65%; }
.mockup-brief-line.w90 { width: 90%; }
.mockup-brief-line.w45 { width: 45%; }
.mockup-brief-line.w75 { width: 75%; }

/* Integrations mockup */
.mockup-integrations { display: flex; align-items: center; justify-content: center; gap: 1.5rem; height: 100%; }
.mockup-int-icon { width: 36px; height: 36px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 0.65rem; font-weight: 700; color: var(--bg-primary); letter-spacing: 0; }
.mockup-int-icon.gh { background: #e8e6e1; }
.mockup-int-icon.jira { background: #3b82f6; color: white; }
.mockup-int-icon.syn { background: #0284c7; color: white; width: 44px; height: 44px; border-radius: 10px; font-size: 0.7rem; }
.mockup-int-arrows { display: flex; flex-direction: column; gap: 4px; color: #0284c7; font-size: 0.7rem; opacity: 0.7; }

/* Simulations mockup */
.mockup-sim { display: flex; align-items: flex-end; justify-content: center; gap: 1.5rem; height: 100%; padding-bottom: 1rem; }
.mockup-sim-bar { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; }
.mockup-sim-fill { width: 32px; border-radius: 4px 4px 0 0; }
.mockup-sim-fill.a { height: 80px; background: #10b981; opacity: 0.7; }
.mockup-sim-fill.b { height: 55px; background: #f59e0b; opacity: 0.7; }
.mockup-sim-fill.c { height: 30px; background: #ef4444; opacity: 0.5; }
.mockup-sim-label { font-size: 0.6rem; color: #9ca3af; text-transform: uppercase; letter-spacing: 0.05em; }
.mockup-sim-pct { font-size: 0.65rem; color: #374151; font-weight: 600; }

/* ─── Compare Section ─── */

.compare-section { border-top: 1px solid var(--border); }
.compare-table { width: 100%; border-collapse: collapse; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.compare-table th, .compare-table td { text-align: left; padding: 1.1rem 1.5rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.compare-table th { background: var(--bg-card); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-secondary); }
.compare-table th:last-child { color: var(--accent); }
.compare-table td { color: var(--text-secondary); }
.compare-table td:first-child { color: var(--text-primary); font-weight: 500; }
.compare-table td:last-child { color: var(--text-primary); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: var(--bg-card); }

/* ─── Pricing Section ─── */

.pricing-section { border-top: 1px solid var(--border); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.pricing-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 2.5rem; display: flex; flex-direction: column; transition: all 0.3s; }
.pricing-card:hover { border-color: var(--border-light); background: var(--bg-card-hover); }
.pricing-card.featured { border-color: var(--accent-border); background: linear-gradient(180deg, rgba(196, 240, 77, 0.03) 0%, var(--bg-card) 100%); position: relative; }
.pricing-card.featured::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--accent); border-radius: 10px 10px 0 0; }
.pricing-tag { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; margin-bottom: 1rem; display: inline-block; padding: 0.3rem 0.75rem; border-radius: 100px; width: fit-content; }
.pricing-tag.free { background: rgba(255,255,255,0.05); color: var(--text-secondary); }
.pricing-tag.beta { background: var(--accent-glow); border: 1px solid var(--accent-border); color: var(--accent); }
.pricing-tag.custom { background: rgba(255,255,255,0.05); color: var(--text-secondary); }
.pricing-card h3 { font-family: var(--serif); font-size: 1.5rem; margin-bottom: 0.5rem; }
.pricing-price { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.pricing-desc { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 2rem; flex-grow: 1; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 0.7rem; margin-bottom: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.pricing-features li { font-size: 0.87rem; color: var(--text-secondary); display: flex; align-items: flex-start; gap: 0.6rem; }
.pricing-features .check { color: var(--accent); flex-shrink: 0; font-size: 0.85rem; }
.pricing-card .btn-primary, .pricing-card .btn-secondary { width: 100%; justify-content: center; text-align: center; }

/* ─── Status Section (merged with Sovereignty) ─── */

.status-section { border-top: 1px solid var(--border); }
.status-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.status-done, .status-next { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 2.5rem; }
.status-done h3, .status-next h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1.75rem; font-weight: 600; }
.status-done h3 { color: var(--accent); }
.status-next h3 { color: var(--text-muted); }
.status-list { list-style: none; display: flex; flex-direction: column; gap: 0.9rem; }
.status-list li { display: flex; align-items: center; gap: 0.75rem; font-size: 0.92rem; color: var(--text-secondary); }
.status-list .check { color: var(--accent); font-weight: bold; flex-shrink: 0; }
.status-list .pending { color: var(--text-muted); flex-shrink: 0; }
.sovereignty-tags-inline { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--border); }
.sovereignty-tag { background: var(--bg-card); border: 1px solid var(--border); border-radius: 100px; padding: 0.5rem 1.2rem; font-size: 0.82rem; color: var(--text-secondary); display: flex; align-items: center; gap: 0.5rem; }

/* ─── Author Section ─── */

.author-section { border-top: 1px solid var(--border); text-align: center; padding: 4rem 2.5rem; max-width: 1200px; margin: 0 auto; }
.author-section .section-label { margin-bottom: 1rem; }
.author-section p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; max-width: 550px; margin: 0 auto; }
.author-section strong { color: var(--text-primary); }
.author-section a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
.author-section a:hover { opacity: 0.8; }

/* ─── CTA Section ─── */

.cta-section { border-top: 1px solid var(--border); text-align: center; padding: 8rem 2.5rem; max-width: 1200px; margin: 0 auto; }
.cta-section .section-title { margin-left: auto; margin-right: auto; max-width: 600px; }
.cta-section .section-subtitle { margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ─── Footer ─── */

footer { border-top: 1px solid var(--border); padding: 4rem 2.5rem 3rem; max-width: 1200px; margin: 0 auto; }
.footer-top { display: flex; justify-content: space-between; gap: 3rem; margin-bottom: 3rem; flex-wrap: wrap; }
.footer-brand { max-width: 300px; }
.footer-brand .nav-logo { display: block; margin-bottom: 1rem; }
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; font-style: italic; }
.footer-cols { display: flex; gap: 4rem; flex-wrap: wrap; }
.footer-col h4 { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-muted); margin-bottom: 1rem; font-weight: 600; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a { color: var(--text-secondary); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 2rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: 0.78rem; color: var(--text-muted); }

/* ─── Animations ─── */

@keyframes fadeInUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.7s cubic-bezier(0.22, 1, 0.36, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── Responsive ─── */

@media (max-width: 900px) {
    nav { padding: 1rem 1.5rem; }
    .nav-links { display: none; }
    .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-primary); border-bottom: 1px solid var(--border); padding: 1.5rem; gap: 1.25rem; }
    .nav-mobile-toggle { display: block; }
    .nav-lang { border-left: none; padding-left: 0; margin-left: 0; }
    .hero { padding: 7rem 1.5rem 3rem; }
    section { padding: 5rem 1.5rem; }
    .problem-grid, .framework-grid, .pricing-grid, .status-grid, .platform-grid { grid-template-columns: 1fr; }
    .approach-flow { grid-template-columns: 1fr; }
    .flow-step { border-right: none; border-bottom: 1px solid var(--border); }
    .impact-grid { grid-template-columns: repeat(2, 1fr); }
    .scenario-timeline { grid-template-columns: 1fr 1fr; gap: 0; }
    .scenario-timeline::before { display: none; }
    .reframe-columns { grid-template-columns: 1fr; gap: 1rem; }
    .reframe-arrow { transform: rotate(90deg); padding: 0; }
    .reframe-block { padding: 2.5rem 2rem; }
    .mid-cta { padding: 3rem 1.5rem; }
    .cta-section { padding: 5rem 1.5rem; }
    .author-section { padding: 3rem 1.5rem; }
    footer { padding: 3rem 1.5rem 2rem; }
    .metrics-categories { flex-direction: column; gap: 0.75rem; }
}
@media (max-width: 600px) {
    .impact-grid { grid-template-columns: 1fr 1fr; }
    .scenario-timeline { grid-template-columns: 1fr; }
    .hero-proof { gap: 2rem; }
}