@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@200;300;400;500;600;700;800&family=Fira+Code:wght@300;400;500&display=swap');
:root{--bg:#f0f4f8;--surface:#fff;--dark:#1a2030;--border:rgba(20,40,80,0.12);--text:#3a5060;--text-bright:#1a2030;--accent:#2060d0;}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;}
#ph-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;}
.wrap{position:relative;z-index:2;max-width:1020px;margin:0 auto;padding:0 28px 90px;}
.hero{padding:64px 0 50px;border-bottom:1px solid var(--border);margin-bottom:50px;}
.hero-tag{font-size:0.58rem;letter-spacing:5px;text-transform:uppercase;color:var(--accent);opacity:0.65;margin-bottom:12px;font-weight:600;}
.hero h1{font-size:clamp(4rem,12vw,8rem);font-weight:800;line-height:0.85;letter-spacing:-3px;color:var(--dark);}
.hero h1 em{display:block;font-size:0.22em;font-style:normal;font-weight:300;letter-spacing:5px;color:#6a8090;margin-top:12px;font-family:'Fira Code',monospace;text-transform:uppercase;}
.hero-desc{font-size:0.96rem;line-height:1.87;color:var(--text);font-weight:300;margin-top:16px;max-width:600px;}
.ph-scale-wrap{margin-bottom:50px;}
.ph-scale-title{font-size:0.62rem;letter-spacing:4px;text-transform:uppercase;color:var(--accent);opacity:0.65;margin-bottom:16px;font-weight:600;}
.ph-bar{height:56px;border-radius:8px;background:linear-gradient(90deg,#ff0000 0%,#ff4400 8.33%,#ff8800 16.67%,#ffcc00 25%,#ccee00 33.33%,#88dd00 41.67%,#44cc44 50%,#00aacc 58.33%,#0088ff 66.67%,#0044ff 75%,#4400cc 83.33%,#220099 91.67%,#110055 100%);position:relative;box-shadow:0 4px 20px rgba(0,0,0,0.12);}
.ph-labels{display:flex;justify-content:space-between;margin-top:8px;}
.ph-labels span{font-family:'Fira Code',monospace;font-size:0.72rem;font-weight:700;color:var(--dark);}
.ph-examples{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:6px;margin-top:14px;}
.ph-ex{background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:10px 10px 8px;text-align:center;border-top:3px solid;}
.ph-ex .pe-val{font-family:'Fira Code',monospace;font-size:1.1rem;font-weight:700;line-height:1;}
.ph-ex .pe-name{font-size:0.65rem;color:var(--text);margin-top:3px;}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));border:1px solid var(--border);overflow:hidden;margin-bottom:50px;border-radius:4px;background:var(--surface);}
.stat{padding:18px 14px;border-right:1px solid var(--border);transition:background 0.2s;}
.stat:last-child{border-right:none;}.stat:hover{background:var(--bg);}
.s-label{font-family:'Fira Code',monospace;font-size:0.52rem;letter-spacing:2px;text-transform:uppercase;color:var(--accent);opacity:0.7;margin-bottom:7px;}
.s-value{font-size:1.05rem;font-weight:700;color:var(--dark);line-height:1.1;}
.s-unit{font-size:0.6rem;color:#8090a0;}
.section{margin-bottom:50px;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:'Fira Code',monospace;font-size:0.55rem;letter-spacing:3px;color:var(--accent);opacity:0.5;}
.section h2{font-size:1.4rem;font-weight:800;color:var(--dark);letter-spacing:-0.5px;}
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;}
.indicators-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin-top:16px;}
.ind-card{background:var(--surface);border:1px solid var(--border);border-radius:4px;padding:16px;border-left:3px solid;}
.ind-card h3{font-size:0.82rem;font-weight:700;color:var(--dark);margin-bottom:4px;}
.ind-card p{font-size:0.78rem;margin:0;line-height:1.55;}
.buffer-box{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:0 4px 4px 0;padding:22px 24px;margin-top:16px;}
.buffer-box h3{font-size:0.85rem;font-weight:700;color:var(--dark);margin-bottom:10px;}
.buffer-box p{margin:0 0 10px;}.buffer-box p:last-child{margin:0;}
.formula-box{background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:16px 20px;margin:14px 0;font-family:'Fira Code',monospace;font-size:0.88rem;color:var(--dark);text-align:center;}
.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:'Fira Code',monospace;font-size:0.52rem;letter-spacing:2px;color:#8090a0;text-transform:uppercase;}