/* thermodynamique.css */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@200;300;400;500;600;700;800&family=Barlow+Condensed:wght@300;400;500;600;700&family=Share+Tech+Mono&display=swap');
:root{--bg:#060402;--deep:#0c0804;--surface:#140e08;--heat:#ff6b00;--heat-dim:rgba(255,107,0,0.1);--heat-border:rgba(255,107,0,0.2);--warm:#ff9500;--cold:#0088cc;--cold-dim:rgba(0,136,204,0.1);--text:#8a6030;--text-bright:#e0a060;--text-dim:#3a1e08;--border:rgba(255,107,0,0.15);--white:#fff0d8;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Barlow',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;}
#thermo-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;}
body::before{content:'ΔS≥0';position:fixed;bottom:5%;right:5%;font-size:22vw;font-weight:800;opacity:0.02;z-index:1;pointer-events:none;color:var(--heat);font-family:'Barlow Condensed',sans-serif;}
.wrap{position:relative;z-index:2;max-width:1040px;margin:0 auto;padding:0 28px 90px;}
/* Hero */
.hero{padding:68px 0 52px;display:grid;grid-template-columns:1fr 300px;gap:44px;align-items:center;border-bottom:1px solid var(--border);margin-bottom:56px;}
.hero-tag{font-family:'Share Tech Mono',monospace;font-size:0.58rem;letter-spacing:4px;text-transform:uppercase;color:var(--heat);opacity:0.6;margin-bottom:14px;}
.hero h1{font-family:'Barlow Condensed',sans-serif;font-size:clamp(4rem,12vw,8rem);font-weight:700;line-height:0.85;color:var(--white);letter-spacing:-1px;text-transform:uppercase;}
.hero h1 em{display:block;font-size:0.22em;font-style:normal;font-weight:300;letter-spacing:5px;color:var(--text-dim);margin-top:12px;font-family:'Share Tech Mono',monospace;}
.hero-desc{font-size:0.96rem;line-height:1.87;color:var(--text);font-weight:300;margin-top:18px;}
/* Carnot visual */
.carnot-wrap{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:16px;text-align:center;}
#carnot-canvas{display:block;margin:0 auto;}
.carnot-cap{font-family:'Share Tech Mono',monospace;font-size:0.58rem;color:rgba(255,107,0,0.3);letter-spacing:2px;text-transform:uppercase;margin-top:8px;}
/* Principles */
.principles{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:56px;}
.princ{background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:22px;border-top:3px solid;}
.princ h3{font-family:'Barlow Condensed',sans-serif;font-size:1.1rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;}
.princ .peq{font-family:'Share Tech Mono',monospace;font-size:0.85rem;padding:8px 12px;border-radius:3px;margin-bottom:10px;background:rgba(255,255,255,0.03);}
.princ p{font-size:0.82rem;line-height:1.6;color:var(--text);}
/* Stats */
.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(--heat-dim);}
.s-label{font-family:'Share Tech Mono',monospace;font-size:0.52rem;letter-spacing:2px;text-transform:uppercase;color:var(--heat);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);}
/* Sections */
.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:'Share Tech Mono',monospace;font-size:0.55rem;letter-spacing:3px;color:var(--heat);opacity:0.4;}
.section h2{font-family:'Barlow Condensed',sans-serif;font-size:1.6rem;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:1px;}
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;}
.cycles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin-top:16px;}
.cy{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--heat);padding:18px;transition:background 0.2s;}.cy:hover{background:var(--heat-dim);}
.cy h3{font-size:0.85rem;font-weight:700;color:var(--white);margin-bottom:5px;}
.cy .ceq{font-family:'Share Tech Mono',monospace;font-size:0.72rem;color:var(--heat);margin-bottom:8px;}
.cy 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 var(--warm);padding:16px;}.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:'Share Tech Mono',monospace;font-size:0.5rem;letter-spacing:2px;color:var(--text-dim);text-transform:uppercase;}
@media(max-width:640px){.hero{grid-template-columns:1fr;} .principles{grid-template-columns:1fr;}}