/* optique.css */
@import url('https://fonts.googleapis.com/css2?family=Tenor+Sans&family=Nunito:wght@200;300;400;500;600;700;800&family=Source+Code+Pro:wght@300;400;500&display=swap');
:root{--bg:#030208;--deep:#05040e;--surface:#080620;--light:#ffffff;--prism-red:#ff4040;--prism-orange:#ff9020;--prism-yellow:#ffee00;--prism-green:#40d040;--prism-blue:#2080ff;--prism-violet:#9020ff;--text:#4030a0;--text-bright:#a080e0;--text-dim:#180828;--border:rgba(150,100,255,0.15);--white:#f0e8ff;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Nunito',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;}
#opt-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:68px 0 52px;border-bottom:1px solid var(--border);margin-bottom:56px;}
.hero-tag{font-size:0.58rem;letter-spacing:5px;text-transform:uppercase;color:rgba(150,100,255,0.6);margin-bottom:14px;font-weight:600;}
.hero h1{font-family:'Tenor Sans',serif;font-size:clamp(5rem,14vw,10rem);font-weight:400;line-height:0.85;
  background:linear-gradient(90deg,var(--prism-red),var(--prism-orange),var(--prism-yellow),var(--prism-green),var(--prism-blue),var(--prism-violet));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-2px;}
.hero h1 em{display:block;font-size:0.22em;font-style:normal;font-weight:300;letter-spacing:6px;-webkit-text-fill-color:rgba(120,80,200,0.4);color:rgba(120,80,200,0.4);margin-top:12px;font-family:'Source Code Pro',monospace;text-transform:uppercase;}
.hero-desc{font-size:0.96rem;line-height:1.87;color:var(--text);font-weight:300;margin-top:18px;max-width:600px;}
/* Spectrum bar */
.spectrum-bar{height:48px;border-radius:6px;background:linear-gradient(90deg,#ff0000,#ff8800,#ffee00,#00dd00,#0088ff,#8800ff);margin-bottom:8px;box-shadow:0 0 20px rgba(150,100,255,0.2);position:relative;overflow:hidden;}
.spectrum-bar::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,0.08),transparent,rgba(0,0,0,0.1));}
.wavelength-labels{display:flex;justify-content:space-between;margin-bottom:48px;}
.wavelength-labels span{font-family:'Source Code Pro',monospace;font-size:0.65rem;color:rgba(150,100,255,0.45);}
/* Prism canvas */
.prism-wrap{background:var(--deep);border:1px solid var(--border);border-radius:6px;padding:16px;margin-bottom:56px;text-align:center;}
#prism-canvas{display:block;margin:0 auto;}
.prism-cap{font-family:'Source Code Pro',monospace;font-size:0.58rem;color:rgba(150,100,255,0.3);letter-spacing:2px;text-transform:uppercase;margin-top:8px;}
.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(--deep);border-right:1px solid var(--border);transition:background 0.2s;}.stat:last-child{border-right:none;}.stat:hover{background:rgba(150,100,255,0.06);}
.s-label{font-family:'Source Code Pro',monospace;font-size:0.52rem;letter-spacing:2px;text-transform:uppercase;color:rgba(150,100,255,0.55);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:'Source Code Pro',monospace;font-size:0.55rem;letter-spacing:3px;color:rgba(150,100,255,0.4);}
.section h2{font-family:'Tenor Sans',serif;font-size:1.6rem;font-weight:400;color:var(--white);}
p{font-size:0.95rem;line-height:1.87;color:var(--text);font-weight:300;margin-bottom:14px;}
strong{color:var(--text-bright);font-weight:700;}
.optics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin-top:16px;}
.og{background:var(--surface);border:1px solid var(--border);padding:18px;border-radius:3px;transition:background 0.2s;}.og:hover{background:rgba(150,100,255,0.06);}
.og h3{font-size:0.85rem;font-weight:700;color:var(--white);margin-bottom:5px;}
.og-eq{font-family:'Source Code Pro',monospace;font-size:0.78rem;color:rgba(150,100,255,0.7);padding:6px 10px;background:rgba(150,100,255,0.06);border-radius:2px;margin-bottom:8px;}
.og p{font-size:0.78rem;margin:0;line-height:1.55;}
.apps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin-top:16px;}
.ap{background:var(--surface);border:1px solid var(--border);border-top:2px solid;padding:16px;transition:background 0.2s;}.ap:hover{background:rgba(150,100,255,0.06);}
.ap h3{font-size:0.82rem;font-weight:700;color:var(--white);margin-bottom:5px;}
.ap p{font-size:0.78rem;margin:0;line-height:1.55;}
.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:'Source Code Pro',monospace;font-size:0.5rem;letter-spacing:2px;color:var(--text-dim);text-transform:uppercase;}