@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Archivo+Black&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300;1,9..40,400&display=swap');

:root {
    --bg: #1a1710; --dark-1: #252017; --dark-2: #2e2820; --dark-3: #3a3228;
    --surface: #312a20; --line: #5a4f3e; --muted: #7a6e5c;
    --text: #c8bca8; --text-bright: #e8dcc8;
    --orange: #FF6B1A; --orange-dim: #cc5515; --orange-bright: #FF8844;
    --orange-glow: rgba(255,107,26,0.15); --kraft: #c4a96a;
    --font-display: 'Archivo Black', Impact, sans-serif;
    --font-mono: 'Space Mono', monospace;
    --font-body: 'DM Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text); font-family: var(--font-body); overflow-x: hidden; }

/* Typography Helpers */
.font-mono { font-family: var(--font-mono) !important; }
.font-display { font-family: var(--font-display) !important; }

/* Blueprint Grid */
.blueprint-grid {
    position: fixed; inset: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 0; opacity: 0.12;
}

nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(26,23,16,0.9); backdrop-filter: blur(12px); border-bottom: 2px solid var(--dark-3); }
.nav-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 54px; padding: 0 2rem; }
.nav-logo { font-family: var(--font-display); font-size: 18px; color: var(--orange); letter-spacing: 0.06em; text-transform: uppercase; }
.nav-domain { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.04em; }

.page { position: relative; z-index: 1; }

.hero { max-width: 1100px; margin: 0 auto; padding: 130px 2rem 80px; display: grid; grid-template-columns: 1fr 340px; gap: 3rem; align-items: center; transition: all 0.8s cubic-bezier(0.22,1,0.36,1); }
.hero:not(.loaded) { opacity: 0; transform: translateY(20px); }

.hero-tag { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--orange); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.75rem; }
.hero-tag-line { width: 40px; height: 2px; background: var(--orange); }
.hero h1 { font-family: var(--font-display); font-size: clamp(4rem, 10vw, 7.5rem); color: var(--text-bright); text-transform: uppercase; line-height: 0.9; letter-spacing: -0.02em; margin-bottom: 2rem; }
.hero h1 span { -webkit-text-stroke: 2px var(--orange); -webkit-text-fill-color: transparent; display: block; }
.hero-desc { font-size: 17px; line-height: 1.75; color: var(--text); max-width: 500px; font-weight: 300; }
.hero-desc strong { color: var(--orange-bright); font-weight: 500; }

.stamp-container { margin-top: 2rem; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.stamp-badge {
    display: inline-block; border: 2px solid var(--orange); color: var(--orange); font-family: var(--font-mono);
    font-size: 11px; font-weight: 700; letter-spacing: "0.14em"; text-transform: uppercase; padding: 5px 14px; border-radius: 2px;
    transform: rotate(-2deg); line-height: 1;
}

.hero-diagram-wrap { background: var(--dark-1); border: 1.5px solid var(--dark-3); padding: 2rem; position: relative; }
.hero-diagram-wrap::before { content: 'DETAIL A'; position: absolute; top: 10px; right: 12px; font-family: var(--font-mono); font-size: 9px; font-weight: 700; color: var(--orange); letter-spacing: 0.1em; }
.hero-diagram-wrap::after { content: ''; position: absolute; top: -4px; left: -4px; width: 16px; height: 16px; border-top: 2px solid var(--orange); border-left: 2px solid var(--orange); }

.diag-svg { width: 100%; max-width: 320px; }
.diag-svg.small { max-width: 180px; }

.divider { max-width: 1100px; margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; gap: 1rem; }
.divider-line { flex: 1; height: 1px; background: var(--dark-3); }
.divider-dot { width: 6px; height: 6px; background: var(--orange); transform: rotate(45deg); }

section { max-width: 1100px; margin: 0 auto; padding: 5rem 2rem; }
.sec-num { font-family: var(--font-display); font-size: 64px; color: var(--dark-3); line-height: 1; margin-bottom: -0.4rem; letter-spacing: -0.04em; }
.sec-label { font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: var(--orange); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 1rem; }
.sec-heading { font-family: var(--font-display); font-size: clamp(1.5rem, 3.5vw, 2.4rem); color: var(--text-bright); text-transform: uppercase; line-height: 1.15; margin-bottom: 1.5rem; max-width: 680px; letter-spacing: 0.01em; }
.sec-body { font-size: 16px; line-height: 1.8; color: var(--text); max-width: 600px; font-weight: 300; }
.sec-body p + p { margin-top: 1.25rem; }
.sec-body em { color: var(--orange-bright); font-style: normal; font-weight: 400; }

.callout { border: 2px solid var(--orange); background: var(--orange-glow); padding: 1.75rem 2rem; margin: 2.5rem 0; max-width: 600px; position: relative; }
.callout::before { content: '!'; position: absolute; top: -12px; left: 20px; background: var(--orange); color: var(--bg); font-family: var(--font-display); font-size: 14px; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; }
.callout p { font-family: var(--font-mono); font-size: 14px; line-height: 1.7; color: var(--text-bright); font-weight: 400; }

.scope-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2.5rem; }
.scope-card { border: 1.5px solid var(--dark-3); padding: 1.75rem; background: var(--dark-1); position: relative; }
.scope-card.yes { border-color: var(--orange); }
.scope-card.yes::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--orange); }
.scope-card h4 { font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 1rem; }
.scope-card.yes h4 { color: var(--orange); }
.scope-card.no h4 { color: var(--muted); }
.scope-card li { font-size: 14px; line-height: 1.5; color: var(--text); padding: 0.4rem 0; padding-left: 1.5rem; position: relative; list-style: none; font-weight: 300; }
.scope-card.yes li::before { content: '▸'; position: absolute; left: 0; color: var(--orange); font-size: 12px; }
.scope-card.no li::before { content: '✕'; position: absolute; left: 0; color: var(--muted); font-size: 10px; top: 7px; }

.diagrams { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; margin-top: 3rem; }
.dia-panel { background: var(--dark-1); border: 1.5px solid var(--dark-3); padding: 1.5rem; text-align: center; transition: border-color 0.3s; }
.dia-panel:hover { border-color: var(--orange); }

.fab-paths { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2.5rem; }
.fab-card { border: 1.5px solid var(--dark-3); padding: 1.5rem; background: var(--dark-1); }
.fab-card h5 { font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--orange); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.75rem; }
.fab-card p { font-size: 14px; line-height: 1.7; color: var(--text); font-weight: 300; }

.eco-flow { display: flex; align-items: stretch; gap: 0; margin: 3rem 0; flex-wrap: wrap; }
.eco-node { flex: 1; min-width: 160px; border: 2px solid var(--dark-3); padding: 1.5rem; text-align: center; background: var(--dark-1); }
.eco-node.active { border-color: var(--orange); background: var(--orange-glow); }
.eco-node h5 { font-size: 16px; text-transform: uppercase; color: var(--text-bright); margin-bottom: 0.5rem; }
.eco-node.active h5 { color: var(--orange); }
.eco-node p { font-size: 13px; color: var(--muted); font-weight: 300; }
.eco-arrow { display: flex; align-items: center; justify-content: center; width: 48px; color: var(--orange); font-family: var(--font-mono); font-size: 20px; font-weight: 700; }

.cta { text-align: center; padding: 5rem 2rem 6rem; max-width: 680px; margin: 0 auto; }
.cta h3 { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 2.6rem); text-transform: uppercase; color: var(--text-bright); margin-bottom: 1rem; line-height: 1.15; }
.cta p { font-size: 15px; line-height: 1.7; color: var(--text); font-weight: 300; margin-bottom: 2.5rem; }
.cta-btn { display: inline-block; font-family: var(--font-mono); font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--bg); background: var(--orange); padding: 16px 44px; border: none; cursor: pointer; text-decoration: none; transition: all 0.2s; }
.cta-btn:hover { background: var(--orange-bright); transform: translateY(-1px); }

footer { border-top: 2px solid var(--dark-3); padding: 2rem; display: flex; justify-content: space-between; align-items: center; max-width: 1100px; margin: 0 auto; font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
footer a { color: var(--orange); text-decoration: none; }

/* Fade In Logic */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: all 0.7s cubic-bezier(0.22,1,0.36,1);
}
.fade-in.visible {
    opacity: 1;
    transform: none;
}

@media (max-width: 768px) {
    .hero { grid-template-columns: 1fr; padding-top: 110px; }
    .hero-diagram-wrap { max-width: 300px; margin: 0 auto; }
    .scope-grid, .fab-paths { grid-template-columns: 1fr; }
    .eco-flow { flex-direction: column; }
    .eco-arrow { transform: rotate(90deg); width: auto; height: 36px; }
    footer { flex-direction: column; gap: 0.5rem; text-align: center; }
}