:root{
  --bg:#0a0c0e; --surface:#14161a; --surface2:#191c21;
  --border:rgba(245,245,242,.09);
  --text:#f5f5f2; --muted:rgba(245,245,242,.56); --faint:rgba(245,245,242,.36);
  --green:#70e000; --red:#ff5d4d; --blue:#20d7ff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.wrap{max-width:1000px;margin:0 auto;padding:0 24px}

/* header */
header{display:flex;align-items:center;justify-content:space-between;padding:20px 0}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:-.02em}
.logo .mark{width:24px;height:24px;border-radius:7px;background:var(--green);display:grid;place-items:center}
.logo .mark svg{width:10px;height:10px;margin-left:1px}
.signin{font-size:14px;font-weight:600;padding:9px 18px;border-radius:999px;background:var(--green);color:#08210a;border:0;cursor:pointer}
.signin.big{font-size:15px;padding:13px 28px}

/* hero */
.hero{text-align:center;padding:60px 0 40px;position:relative}
.hero::before{content:"";position:absolute;top:-30px;left:50%;transform:translateX(-50%);width:520px;height:340px;max-width:90vw;background:radial-gradient(ellipse at center,rgba(112,224,0,.16),transparent 70%);filter:blur(20px);z-index:0;pointer-events:none}
.hero>*{position:relative;z-index:1}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--green);text-transform:uppercase;margin-bottom:18px}
.hero h1{font-size:clamp(34px,5.2vw,56px);font-weight:800;letter-spacing:-.03em;line-height:1.04;margin-bottom:18px}
.lede{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:560px;margin:0 auto 30px}

/* search / prompt */
.search{display:flex;align-items:center;gap:8px;max-width:540px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:7px 7px 7px 22px}
.search input{flex:1;background:transparent;border:0;outline:0;color:var(--text);font-size:16px;font-family:inherit;min-width:0}
.search input::placeholder{color:var(--faint)}
.search button{background:var(--green);color:#08210a;font-weight:700;font-size:15px;border:0;border-radius:999px;padding:12px 22px;cursor:pointer;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:18px}
.chips span{font-size:13px;color:var(--muted);background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:7px 14px;cursor:pointer}
.chips span:hover{color:var(--text);border-color:rgba(245,245,242,.2)}
.hint{font-size:13px;color:var(--faint);margin-top:18px}
.status{font-size:14px;color:var(--muted);margin-top:18px}
.error{font-size:14px;color:var(--red);margin-top:14px}
.building{display:inline-flex;align-items:center;gap:9px;margin-top:18px;font-size:14px;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:9px 18px}
.building .dot{width:8px;height:8px;border-radius:50%;background:var(--green);animation:pulse 1.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(112,224,0,.5)}70%{box-shadow:0 0 0 8px rgba(112,224,0,0)}100%{box-shadow:0 0 0 0 rgba(112,224,0,0)}}

/* sections */
section{padding:48px 0}
.kicker{text-align:center;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--faint);text-transform:uppercase;margin-bottom:28px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:26px 22px}
.step .n{width:30px;height:30px;border-radius:9px;background:rgba(112,224,0,.12);color:var(--green);font-weight:700;font-size:14px;display:grid;place-items:center;margin-bottom:16px}
.step h3{font-size:16px;font-weight:700;margin-bottom:7px;letter-spacing:-.01em}
.step p{font-size:14px;color:var(--muted)}

/* per-user themes */
.themes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-bottom:24px}
.theme-pick{text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px;cursor:pointer;display:flex;flex-direction:column;gap:6px;transition:border-color .15s}
.theme-pick:hover{border-color:rgba(245,245,242,.2)}
.theme-pick.on{border-color:var(--green)}
.theme-pick strong{font-size:16px;font-weight:700;letter-spacing:-.01em}
.theme-pick span{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.theme-pick em{font-style:normal;font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.theme-pick em.up{color:var(--green)} .theme-pick em.down{color:var(--red)}

/* sample / result card */
.sample{max-width:600px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:22px;overflow:hidden}
.sample.result{max-width:680px}
.sample .top{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--border)}
.sample .top .t{font-size:17px;font-weight:700;letter-spacing:-.01em}
.sample .top .from{font-size:12px;color:var(--faint)}
.layers-row{display:flex;flex-wrap:wrap;gap:8px;padding:16px 22px;border-bottom:1px solid var(--border)}
.layer-pill{font-size:13px;color:var(--muted);background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:7px 14px;cursor:pointer}
.layer-pill.on{color:#08210a;background:var(--green);border-color:var(--green);font-weight:600}
.row{display:flex;align-items:center;gap:14px;padding:15px 22px;border-bottom:1px solid var(--border)}
.row:last-child{border-bottom:0}
.row .sym{width:64px;font-weight:700;font-size:15px}
.row .co{flex:1;font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .tag{font-size:11px;font-weight:600;padding:4px 9px;border-radius:7px;background:rgba(112,224,0,.12);color:var(--green)}
.row .tag.blue{background:rgba(32,215,255,.12);color:var(--blue)}
.row .save{font-size:12px;font-weight:600;color:var(--muted);background:transparent;border:1px solid var(--border);border-radius:8px;padding:6px 12px;cursor:pointer}
.row .save.on{color:var(--green);border-color:rgba(112,224,0,.4)}
.row .chg{width:62px;text-align:right;font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.row .chg.up{color:var(--green)} .row .chg.down{color:var(--red)}
.spark{width:48px;height:20px;flex:none}

/* states */
.empty{text-align:center;padding:30px 0 10px}
.empty h2{font-size:24px;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.empty p{font-size:15px;color:var(--muted)}
.closing{text-align:center;padding:60px 0 30px}
.closing h2{font-size:clamp(26px,3.4vw,36px);font-weight:800;letter-spacing:-.03em;margin-bottom:22px}
footer{padding:28px 0 50px;text-align:center;color:var(--faint);font-size:13px;border-top:1px solid var(--border);margin-top:24px}

@media(max-width:680px){
  .steps{grid-template-columns:1fr}
  .search{flex-direction:column;border-radius:20px;padding:14px;gap:12px}
  .search input{width:100%;text-align:center}
  .search button{width:100%}
  .row .co{display:none}
}