:root {
  --bg-main: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #1f293d;
  --border-color: #1e293b;
  --accent-cyan: #38bdf8;
  --accent-emerald: #10b981;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background-color: var(--bg-main); color: var(--text-main); line-height: 1.6; -webkit-font-smoothing: antialiased; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.scroll-progress { position: fixed; top: 0; left: 0; height: 2px; width: 0%; background: linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald)); z-index: 200; transition: width 0.1s linear; box-shadow: 0 0 8px rgba(56, 189, 248, 0.6); }

header { border-bottom: 1px solid var(--border-color); position: sticky; top: 0; background: rgba(9, 13, 22, 0.85); backdrop-filter: blur(12px); z-index: 100; }
nav { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.logo { font-weight: 700; font-size: 1.15rem; letter-spacing: -0.02em; color: var(--text-main); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.logo-dot { width: 8px; height: 8px; background-color: var(--accent-cyan); border-radius: 50%; box-shadow: 0 0 8px var(--accent-cyan); animation: pulse-dot 2.4s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent-cyan); } 50% { opacity: 0.6; box-shadow: 0 0 16px var(--accent-cyan); } }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { position: relative; color: var(--text-muted); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color 0.2s ease; padding-bottom: 4px; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--accent-cyan); transition: width 0.25s ease; }
.nav-links a:hover { color: var(--accent-cyan); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--accent-cyan); }

.hero { padding: 100px 0 80px; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% -10%; background:
    radial-gradient(600px circle at 20% 20%, rgba(56, 189, 248, 0.10), transparent 60%),
    radial-gradient(500px circle at 80% 10%, rgba(16, 185, 129, 0.08), transparent 60%),
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: auto, auto, 48px 48px, 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 40%, transparent 100%);
  animation: drift 18s ease-in-out infinite alternate;
  pointer-events: none; z-index: 0; }
@keyframes drift { 0% { transform: translate(0, 0); } 100% { transform: translate(-2%, 2%); } }
.hero .container { position: relative; z-index: 1; }
.pill-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(56, 189, 248, 0.08); border: 1px solid rgba(56, 189, 248, 0.2); padding: 6px 16px; border-radius: 20px; font-size: 0.825rem; font-family: var(--font-mono); color: var(--accent-cyan); margin-bottom: 24px; }
.hero-banner { max-width: 560px; width: 100%; height: auto; margin: 0 auto 32px; display: block; border-radius: 12px; }
.pill-badge span { display: inline-block; animation: pulse-dot 2.4s ease-in-out infinite; }
h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 20px; background: linear-gradient(180deg, #ffffff 0%, #94a3b8 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.subtitle { font-size: 1.2rem; color: var(--text-muted); max-width: 680px; margin: 0 auto 40px; font-weight: 400; }
.cta-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { position: relative; overflow: hidden; padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 0.95rem; text-decoration: none; transition: all 0.2s ease; display: inline-flex; align-items: center; gap: 8px; }
.btn::before { content: ""; position: absolute; top: 0; left: -75%; width: 50%; height: 100%; background: linear-gradient(120deg, transparent, rgba(255,255,255,0.35), transparent); transform: skewX(-20deg); transition: left 0.6s ease; }
.btn:hover::before { left: 125%; }
.btn-primary { background: var(--accent-cyan); color: #090d16; }
.btn-primary:hover { background: #7dd3fc; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(56, 189, 248, 0.25); }
.btn-secondary { background: var(--bg-card); color: var(--text-main); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--text-dim); transform: translateY(-1px); }

.section { padding: 80px 0; border-top: 1px solid var(--border-color); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-desc { color: var(--text-muted); font-size: 1.05rem; max-width: 580px; margin: 0 auto; }

.pillars-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.card { position: relative; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 32px; overflow: hidden; transition: transform 0.2s ease, border-color 0.2s ease; }
.card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity 0.3s ease;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(56, 189, 248, 0.12), transparent 70%); pointer-events: none; }
.card:hover { border-color: var(--text-dim); transform: translateY(-2px); }
.card:hover::before { opacity: 1; }
.card-tag { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent-cyan); margin-bottom: 12px; }
.card-title { font-size: 1.35rem; font-weight: 600; margin-bottom: 12px; }
.card-body { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 20px; }
.card-list { list-style: none; }
.card-list li { position: relative; padding-left: 20px; margin-bottom: 8px; font-size: 0.9rem; color: var(--text-muted); }
.card-list li::before { content: "→"; position: absolute; left: 0; color: var(--accent-cyan); font-family: var(--font-mono); }

.principles-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 40px; }
.principle-box { position: relative; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px; padding: 24px; overflow: hidden; transition: transform 0.2s ease, border-color 0.2s ease; }
.principle-box::before { content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity 0.3s ease;
  background: radial-gradient(200px circle at var(--mx, 50%) var(--my, 50%), rgba(16, 185, 129, 0.12), transparent 70%); pointer-events: none; }
.principle-box:hover { border-color: var(--text-dim); transform: translateY(-2px); }
.principle-box:hover::before { opacity: 1; }
.principle-num { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent-emerald); margin-bottom: 8px; }
.principle-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.principle-text { font-size: 0.875rem; color: var(--text-muted); }

/* Writings rails (homepage compact preview) */
.rails { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 32px; }
.rail-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 16px; }
.rail-head h3 { font-size: 1.1rem; font-weight: 600; }
.rail-head a { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-cyan); text-decoration: none; }
.rail-head a:hover { text-decoration: underline; }
.rail-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.rail-list a { display: block; padding: 14px 4px; color: var(--text-main); text-decoration: none; border-bottom: 1px solid var(--border-color); font-size: 0.95rem; font-weight: 500; transition: color 0.2s ease, padding-left 0.2s ease; }
.rail-list a:hover { color: var(--accent-cyan); padding-left: 8px; }

.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.blog-card { position: relative; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 28px; text-decoration: none; color: inherit; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; transition: all 0.2s ease; }
.blog-card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0; transition: opacity 0.3s ease;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(56, 189, 248, 0.10), transparent 70%); pointer-events: none; }
.blog-card:hover { border-color: var(--accent-cyan); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.35); }
.blog-card:hover::before { opacity: 1; }
.blog-tag { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-emerald); margin-bottom: 12px; }
.blog-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 10px; line-height: 1.4; color: var(--text-main); }
.blog-excerpt { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 16px; }
.blog-arrow { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent-cyan); opacity: 0; transform: translateX(-6px); transition: all 0.25s ease; }
.blog-card:hover .blog-arrow { opacity: 1; transform: translateX(0); }

.manifesto { background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-main) 100%); border: 1px solid var(--border-color); border-radius: 16px; padding: 48px; text-align: center; margin: 40px 0; }
.manifesto-quote { font-size: 1.4rem; font-weight: 500; font-style: italic; color: var(--text-main); max-width: 800px; margin: 0 auto 16px; line-height: 1.5; }
.manifesto-author { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent-cyan); }

footer { border-top: 1px solid var(--border-color); padding: 40px 0; text-align: center; color: var(--text-dim); font-size: 0.875rem; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; }
.footer-links a { color: var(--text-muted); text-decoration: none; }
.footer-links a:hover { color: var(--accent-cyan); }

/* Blog index + article pages */
.page-head { padding: 64px 0 40px; text-align: center; }
.page-head h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
.page-head p { color: var(--text-muted); font-size: 1.05rem; max-width: 560px; margin: 12px auto 0; }

.article { padding: 64px 0 100px; max-width: 720px; margin: 0 auto; }
.article-meta { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-emerald); margin-bottom: 16px; }
.article h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); line-height: 1.25; margin-bottom: 24px; -webkit-text-fill-color: var(--text-main); background: none; }
.article p { color: var(--text-muted); font-size: 1.05rem; margin-bottom: 20px; }
.article p strong, .article p b { color: var(--text-main); }
.article .back-link { display: inline-block; margin-bottom: 32px; color: var(--accent-cyan); text-decoration: none; font-family: var(--font-mono); font-size: 0.85rem; }
.article .back-link:hover { text-decoration: underline; }

@media (max-width: 768px) { .nav-links { display: none; } .manifesto { padding: 32px 20px; } .manifesto-quote { font-size: 1.15rem; } }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .logo-dot, .pill-badge span, .hero::before { animation: none; }
  .btn::before { display: none; }
}