/* ────────────────────────────────────────────────────────────
   Magic Lamp — Homepage
   Inherits the studio.html/dashboard.html design system verbatim:
   near-black ground, lime glow accent, glass cards, per-feature
   brand colors (pink=ecom, indigo=music, gold=pro/cinema).
   No new visual world — this is an extension, not an invention.
──────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}

a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:none;box-shadow:0 0 0 2px var(--accent-border);
}

:root{
  --accent:#CCFF00;--accent-dim:rgba(204,255,0,.12);--accent-border:rgba(204,255,0,.28);
  --bg:#050505;--bg2:rgba(255,255,255,.03);--bg3:rgba(255,255,255,.06);
  --text:#FFFFFF;--t2:rgba(255,255,255,.75);--t3:rgba(255,255,255,.5);--t4:rgba(255,255,255,.46);
  --b1:rgba(255,255,255,.08);--b2:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.03);--blur:blur(30px);
  --header-h:68px;--r:12px;--r2:20px;--r3:24px;--rpill:100px;
  --ecom:#FF6BA8;--ecom-dim:rgba(212,0,106,.09);--ecom-border:rgba(212,0,106,.4);
  --music:#818cf8;--music-dim:rgba(99,102,241,.12);--music-border:rgba(99,102,241,.45);
  --cinema:#FFD700;--cinema-dim:rgba(255,215,0,.09);--cinema-border:rgba(255,215,0,.35);
}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--text);font-family:'Figtree',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  min-height:100vh;overflow-x:hidden;
}
.disp{font-family:'Bricolage Grotesque','Figtree',sans-serif;}

/* ── HEADER (same component language as studio.html) ── */
#hn-nav{
  position:fixed;top:0;left:0;right:0;z-index:500;height:var(--header-h);
  background:rgba(4,4,6,.93);backdrop-filter:blur(48px) saturate(180%);-webkit-backdrop-filter:blur(48px) saturate(180%);
  border-bottom:1px solid rgba(255,255,255,.07);
}
#hn-nav-inner{max-width:1440px;margin:0 auto;padding:0 26px;height:100%;display:flex;align-items:center;gap:16px;}
.hn-logo{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:17px;color:#fff;text-decoration:none;display:flex;align-items:center;gap:9px;flex-shrink:0;}
.hn-links{display:flex;align-items:center;gap:2px;flex:1;}
.hn-link{padding:7px 16px;border-radius:var(--rpill);font-size:13px;font-weight:600;color:var(--t3);text-decoration:none;white-space:nowrap;transition:color .15s,background .15s;}
.hn-link:hover{color:rgba(255,255,255,.85);background:rgba(255,255,255,.07);}
.hn-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.hn-btn-ghost{padding:8px 18px;border-radius:var(--rpill);border:1px solid var(--b1);background:rgba(255,255,255,.04);color:var(--t2);font-size:13px;font-weight:600;font-family:inherit;text-decoration:none;transition:all .15s;}
.hn-btn-ghost:hover{border-color:var(--b2);color:#fff;}
.hn-btn-primary{padding:9px 20px;border-radius:var(--rpill);border:none;background:var(--accent);color:#050505;font-size:13px;font-weight:800;font-family:inherit;text-decoration:none;box-shadow:0 0 18px rgba(204,255,0,.22);transition:box-shadow .15s,transform .15s;}
.hn-btn-primary:hover{box-shadow:0 0 26px rgba(204,255,0,.38);transform:translateY(-1px);}
.hn-mobile-toggle{display:none;width:34px;height:34px;align-items:center;justify-content:center;border-radius:9px;border:1px solid var(--b1);background:rgba(255,255,255,.04);color:var(--t2);cursor:pointer;}
.hn-mobile-menu{display:none;position:fixed;top:var(--header-h);left:0;right:0;z-index:499;background:rgba(4,4,6,.97);backdrop-filter:blur(48px);border-bottom:1px solid rgba(255,255,255,.07);padding:8px;flex-direction:column;gap:2px;}
.hn-mobile-menu.open{display:flex;}
.hn-mobile-link{padding:12px 14px;border-radius:10px;font-size:14px;font-weight:600;color:var(--t2);text-decoration:none;}
.hn-mobile-link:hover{background:rgba(255,255,255,.07);color:#fff;}

/* ── HERO ── */
.hero{max-width:920px;margin:0 auto;padding:calc(var(--header-h) + 64px) 24px 0;text-align:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--accent);
  background:var(--accent-dim);border:1px solid var(--accent-border);border-radius:var(--rpill);padding:5px 14px 5px 12px;margin-bottom:20px;
}
.hero h1{font-size:clamp(30px,5vw,50px);font-weight:800;line-height:1.15;letter-spacing:-.5px;text-wrap:balance;margin-bottom:14px;}
.hero h1 .accent-word{color:var(--accent);}
.hero-sub{font-size:16px;color:var(--t2);max-width:520px;margin:0 auto 36px;line-height:1.6;}

/* ── DEMO INPUT (the thesis: try it before we pitch it) ── */
.demo-box{
  max-width:720px;margin:0 auto 64px;background:var(--glass);border:1px solid var(--b1);border-radius:var(--r3);
  padding:8px;backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);
  box-shadow:0 0 0 1px rgba(255,255,255,.02),0 20px 60px rgba(0,0,0,.4);
  text-align:left;
}
.demo-modes{display:flex;gap:4px;padding:6px 6px 10px;flex-wrap:wrap;}
.demo-mode{padding:7px 14px;border-radius:var(--rpill);border:1px solid transparent;background:transparent;color:var(--t3);font-size:12.5px;font-weight:700;font-family:inherit;cursor:pointer;transition:all .15s;}
.demo-mode:hover{color:var(--t2);border-color:var(--b2);}
.demo-mode.active{background:rgba(204,255,0,.09);border-color:rgba(204,255,0,.5);color:var(--accent);box-shadow:0 0 10px rgba(204,255,0,.16);}
.demo-mode[data-mode="ecom"].active{background:var(--ecom-dim);border-color:var(--ecom-border);color:var(--ecom);box-shadow:0 0 10px rgba(212,0,106,.16);}
.demo-mode[data-mode="music"].active{background:var(--music-dim);border-color:var(--music-border);color:var(--music);box-shadow:0 0 10px rgba(99,102,241,.18);}
.demo-input-row{display:flex;align-items:flex-end;gap:10px;padding:6px;}
.demo-input{
  flex:1;background:transparent;border:none;color:#fff;font-family:inherit;font-size:15px;line-height:1.5;
  resize:none;min-height:52px;max-height:140px;padding:12px 8px;
}
.demo-input::placeholder{color:var(--t3);}
.demo-input:focus{outline:none;}
.demo-gen-btn{
  flex-shrink:0;display:flex;align-items:center;gap:8px;padding:14px 22px;border-radius:var(--r);border:none;
  background:var(--accent);color:#050505;font-size:14px;font-weight:800;font-family:inherit;cursor:pointer;
  transition:opacity .15s,transform .15s;white-space:nowrap;
}
.demo-gen-btn:hover{opacity:.9;transform:translateY(-1px);}
.demo-gen-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}
.demo-result{display:none;padding:16px;border-top:1px solid var(--b1);margin-top:4px;}
.demo-result.show{display:block;}
.demo-result-card{
  border-radius:var(--r);overflow:hidden;background:var(--bg2);border:1px solid var(--b1);
  display:flex;align-items:center;gap:14px;padding:14px;
}
.demo-result-swatch{width:64px;height:64px;border-radius:10px;flex-shrink:0;}
.demo-result-title{font-size:13.5px;font-weight:700;color:#fff;margin-bottom:3px;}
.demo-result-note{font-size:12px;color:var(--t3);line-height:1.5;}
.demo-result-cta{margin-left:auto;flex-shrink:0;padding:9px 16px;border-radius:var(--rpill);background:var(--accent);color:#050505;font-size:12.5px;font-weight:800;text-decoration:none;white-space:nowrap;}
.demo-hint{font-size:11px;color:var(--t4);text-align:center;padding-bottom:4px;}

/* ── SCENARIO CAROUSEL (draggable) ── */
.carousel-wrap{max-width:1200px;margin:0 auto 88px;padding:0 24px;}
.carousel-hd{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:8px;}
.carousel-hd h2{font-size:20px;font-weight:800;}
.carousel-hd p{font-size:13px;color:var(--t3);}
.carousel-track{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 4px 16px;
  cursor:grab;user-select:none;-webkit-user-select:none;
  scrollbar-width:thin;scrollbar-color:var(--b2) transparent;
}
.carousel-track.dragging{cursor:grabbing;scroll-snap-type:none;}
.carousel-track::-webkit-scrollbar{height:6px;}
.carousel-track::-webkit-scrollbar-thumb{background:var(--b2);border-radius:10px;}
.scenario-card{
  flex:0 0 300px;scroll-snap-align:start;border-radius:var(--r2);overflow:hidden;position:relative;
  aspect-ratio:4/3;border:1.5px solid var(--b1);text-decoration:none;display:block;
  transition:border-color .2s,transform .2s;
}
.scenario-card:hover{transform:translateY(-3px);}
.scenario-card[data-c="lime"]{border-color:rgba(204,255,0,.18);}
.scenario-card[data-c="lime"]:hover{border-color:rgba(204,255,0,.5);}
.scenario-card[data-c="ecom"]{border-color:rgba(212,0,106,.18);}
.scenario-card[data-c="ecom"]:hover{border-color:var(--ecom-border);}
.scenario-card[data-c="music"]{border-color:rgba(99,102,241,.2);}
.scenario-card[data-c="music"]:hover{border-color:var(--music-border);}
.scenario-card[data-c="cinema"]{border-color:rgba(255,215,0,.16);}
.scenario-card[data-c="cinema"]:hover{border-color:var(--cinema-border);}
.scenario-bg{position:absolute;inset:0;}
.scenario-ov{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.82) 0%,transparent 55%);display:flex;flex-direction:column;justify-content:flex-end;padding:18px;}
.scenario-icon{font-size:30px;margin-bottom:8px;opacity:.9;}
.scenario-title{font-size:16px;font-weight:800;color:#fff;margin-bottom:4px;}
.scenario-desc{font-size:12px;color:rgba(255,255,255,.65);line-height:1.5;}

/* ── MODEL SHELF ── */
.shelf-wrap{max-width:1200px;margin:0 auto 88px;padding:0 24px;}
.shelf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
@media(max-width:900px){.shelf-grid{grid-template-columns:repeat(2,1fr);}}
.shelf-card{
  padding:20px;border-radius:var(--r2);background:rgba(255,255,255,.03);border:1px solid var(--b1);
  transition:border-color .18s,background .18s,transform .18s;
}
.shelf-card:hover{background:rgba(255,255,255,.06);border-color:rgba(204,255,0,.3);transform:translateY(-2px);}
.shelf-icon{font-size:26px;margin-bottom:12px;}
.shelf-name{font-size:15px;font-weight:800;margin-bottom:4px;}
.shelf-desc{font-size:12.5px;color:var(--t3);line-height:1.5;margin-bottom:10px;}
.shelf-tag{display:inline-block;font-size:10.5px;font-weight:700;padding:3px 9px;border-radius:6px;background:rgba(204,255,0,.14);color:var(--accent);}

/* ── PRINCIPLES (positioning, no fake proof) ── */
.principles{max-width:1000px;margin:0 auto 96px;padding:0 24px;}
.principles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
@media(max-width:700px){.principles-grid{grid-template-columns:1fr;}}
.principle-card{padding:26px;border-radius:var(--r2);border:1px solid var(--b1);background:rgba(255,255,255,.025);}
.principle-num{font-family:'Bricolage Grotesque',sans-serif;font-size:12px;font-weight:800;color:var(--accent);letter-spacing:.5px;margin-bottom:10px;}
.principle-title{font-size:17px;font-weight:800;margin-bottom:8px;}
.principle-body{font-size:13.5px;color:var(--t2);line-height:1.65;}

/* ── FOOTER CTA ── */
.foot-cta{max-width:720px;margin:0 auto 80px;padding:0 24px;text-align:center;}
.foot-cta h2{font-size:26px;font-weight:800;margin-bottom:10px;}
.foot-cta p{font-size:14px;color:var(--t3);margin-bottom:24px;}
footer{border-top:1px solid var(--b1);padding:32px 24px;text-align:center;font-size:12px;color:var(--t3);}
footer a{color:var(--t3);text-decoration:none;margin:0 8px;}
footer a:hover{color:var(--accent);}

@media(max-width:800px){
  #hn-nav-inner{padding:0 14px;gap:8px;}
  .hn-links{display:none;}
  .hn-mobile-toggle{display:flex;}
  .hero{padding-top:calc(var(--header-h) + 40px);}
  .demo-input-row{flex-direction:column;align-items:stretch;}
  .demo-gen-btn{justify-content:center;}
}