/* energie_matiere.css */
@import url('https://fonts.googleapis.com/css2?family=Titillium+Web:wght@200;300;400;600;700;900&family=Courier+Prime:wght@400;700&display=swap');
:root{--void:#020008;--deep:#06001a;--surface:#0a0028;--energy:#ff6a00;--en-dim:rgba(255,106,0,0.08);--en-border:rgba(255,106,0,0.2);--matter:#9040ff;--mat-dim:rgba(144,64,255,0.08);--nuclear:#ff2244;--text:#5030a0;--text-bright:#c080ff;--text-dim:#1a0040;--border:rgba(144,64,255,0.15);--white:#f0e8ff;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Titillium Web',sans-serif;background:var(--void);color:var(--text);min-height:100vh;overflow-x:hidden;}
#em-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:'Courier Prime',monospace;font-size:0.58rem;letter-spacing:5px;text-transform:uppercase;color:var(--energy);opacity:0.55;margin-bottom:18px;}
.big-eq{font-family:'Courier Prime',monospace;font-size:clamp(3.5rem,12vw,8rem);font-weight:700;color:var(--white);letter-spacing:2px;text-shadow:0 0 40px rgba(255,106,0,0.3),0 0 80px rgba(255,106,0,0.1);margin-bottom:16px;}
.hero h1{font-size:clamp(1.8rem,5vw,3rem);font-weight:700;line-height:1.1;color:rgba(255,255,255,0.6);letter-spacing:-0.5px;margin-bottom:20px;}
.hero-desc{font-size:0.96rem;line-height:1.87;color:var(--text);font-weight:300;max-width:620px;margin:0 auto;}
/* Conversion visual */
.conv-wrap{background:var(--deep);border:1px solid var(--border);border-radius:6px;padding:16px;margin-bottom:56px;text-align:center;}
#conv-canvas{display:block;margin:0 auto;}
.conv-cap{font-family:'Courier Prime',monospace;font-size:0.58rem;color:rgba(255,106,0,0.3);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:var(--en-dim);}
.s-label{font-family:'Courier Prime',monospace;font-size:0.52rem;letter-spacing:2px;text-transform:uppercase;color:var(--energy);opacity:0.5;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:'Courier Prime',monospace;font-size:0.55rem;letter-spacing:3px;color:var(--energy);opacity:0.4;}
.section h2{font-size:1.4rem;font-weight:700;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;}
.forms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin-top:18px;}
.fc{background:var(--surface);border:1px solid var(--border);border-top:3px solid;padding:18px;transition:background 0.2s;}.fc:hover{background:var(--en-dim);}
.fc h3{font-size:0.85rem;font-weight:700;color:var(--white);margin-bottom:5px;}
.fc .feq{font-family:'Courier Prime',monospace;font-size:0.82rem;color:var(--energy);padding:6px 10px;background:var(--en-dim);border-radius:2px;margin-bottom:8px;}
.fc p{font-size:0.78rem;margin:0;line-height:1.55;}
.conversions{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin-top:18px;}
.cv{background:var(--surface);border:1px solid var(--border);padding:16px;transition:background 0.2s;}.cv:hover{background:var(--mat-dim);}
.cv h3{font-size:0.82rem;font-weight:700;color:var(--matter);margin-bottom:5px;}
.cv 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:'Courier Prime',monospace;font-size:0.5rem;letter-spacing:2px;color:var(--text-dim);text-transform:uppercase;}