/* relativite.css */
@import url('https://fonts.googleapis.com/css2?family=Bai+Jamjuree:wght@200;300;400;500;600;700&family=Anonymous+Pro:ital,wght@0,400;0,700;1,400&display=swap');
:root{--void:#000;--cosmos:#030509;--deep:#060c14;--surface:#0a1020;--rel:#c0a000;--rel-dim:rgba(192,160,0,0.08);--rel-border:rgba(192,160,0,0.2);--bright:#f0cc00;--warp:#8060ff;--warp-dim:rgba(128,96,255,0.08);--text:#5a5020;--text-bright:#c0a030;--text-dim:#201808;--border:rgba(192,160,0,0.15);--white:#fff8d0;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Bai Jamjuree',sans-serif;background:var(--void);color:var(--text);min-height:100vh;overflow-x:hidden;}
#rel-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;}
.wrap{position:relative;z-index:2;max-width:1040px;margin:0 auto;padding:0 28px 90px;}
.hero{padding:72px 0 56px;text-align:center;border-bottom:1px solid var(--border);margin-bottom:56px;}
.hero-tag{font-family:'Anonymous Pro',monospace;font-size:0.58rem;letter-spacing:5px;text-transform:uppercase;color:var(--rel);opacity:0.55;margin-bottom:18px;}
.hero h1{font-size:clamp(4rem,13vw,9rem);font-weight:700;line-height:0.85;color:var(--white);letter-spacing:-3px;text-shadow:0 0 40px rgba(192,160,0,0.15);}
.hero h1 em{display:block;font-size:0.22em;font-style:normal;font-weight:200;letter-spacing:6px;color:var(--text-dim);margin-top:12px;font-family:'Anonymous Pro',monospace;text-transform:uppercase;}
.hero-desc{font-size:0.97rem;line-height:1.88;color:var(--text);font-weight:300;margin-top:20px;max-width:620px;margin-left:auto;margin-right:auto;}
.famous-eq{font-family:'Anonymous Pro',monospace;font-size:3.5rem;font-weight:700;text-align:center;color:var(--bright);padding:28px 0;letter-spacing:2px;text-shadow:0 0 30px rgba(240,204,0,0.3);margin-bottom:56px;border:1px solid var(--rel-border);background:rgba(192,160,0,0.04);border-radius:4px;}
/* Postulates */
.postulates{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:56px;}
.post{background:var(--surface);border:1px solid var(--rel-border);padding:24px;border-radius:4px;border-top:3px solid var(--rel);}
.post-n{font-family:'Anonymous Pro',monospace;font-size:0.58rem;letter-spacing:3px;text-transform:uppercase;color:var(--rel);opacity:0.55;margin-bottom:8px;}
.post h3{font-size:1rem;font-weight:700;color:var(--white);margin-bottom:10px;}
.post p{font-size:0.85rem;line-height:1.65;color:var(--text);margin:0;}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));border:1px solid var(--border);overflow:hidden;margin-bottom:56px;}
.stat{padding:16px 12px;background:var(--cosmos);border-right:1px solid var(--border);transition:background 0.2s;}.stat:last-child{border-right:none;}.stat:hover{background:var(--rel-dim);}
.s-label{font-family:'Anonymous Pro',monospace;font-size:0.52rem;letter-spacing:2px;text-transform:uppercase;color:var(--rel);opacity:0.55;margin-bottom:6px;}
.s-value{font-size:1rem;font-weight:700;color:var(--white);line-height:1.1;}
.s-unit{font-size:0.6rem;color:var(--text-dim);}
.section{margin-bottom:52px;opacity:0;transform:translateY(16px);transition:opacity 0.65s,transform 0.65s;}.section.visible{opacity:1;transform:none;}
.sh{display:flex;align-items:baseline;gap:14px;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--border);}
.sn{font-family:'Anonymous Pro',monospace;font-size:0.55rem;letter-spacing:3px;color:var(--rel);opacity:0.4;}
.section h2{font-size:1.4rem;font-weight:700;color:var(--white);}
p{font-size:0.95rem;line-height:1.88;color:var(--text);font-weight:300;margin-bottom:14px;}
strong{color:var(--text-bright);font-weight:700;}
.effects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:16px;}
.ef{background:var(--surface);border:1px solid var(--border);padding:18px;border-radius:3px;transition:background 0.2s;}.ef:hover{background:var(--rel-dim);}
.ef h3{font-size:0.85rem;font-weight:700;color:var(--bright);margin-bottom:5px;}
.ef-eq{font-family:'Anonymous Pro',monospace;font-size:0.8rem;color:var(--rel);padding:6px 10px;background:rgba(192,160,0,0.06);border-radius:2px;margin-bottom:8px;}
.ef p{font-size:0.78rem;margin:0;line-height:1.55;}
.gr-box{background:var(--surface);border:1px solid var(--rel-border);border-left:3px solid var(--bright);padding:24px 26px;margin-top:16px;}
.gr-box h3{font-size:0.9rem;font-weight:700;color:var(--white);margin-bottom:12px;}
.gr-box p{margin:0 0 12px;}.gr-box p:last-child{margin:0;}
.footer-band{margin-top:70px;border-top:1px solid var(--border);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.footer-band span{font-family:'Anonymous Pro',monospace;font-size:0.5rem;letter-spacing:2px;color:var(--text-dim);text-transform:uppercase;}
@media(max-width:640px){.postulates{grid-template-columns:1fr;} .famous-eq{font-size:2.5rem;}}