:root{
  --accent:#6366f1;--accent-2:#22d3ee;--gold:#e2b857;
  --bg:#0a0d14;--bg-2:#0e121c;--surface:#141a27;--surface-2:#1b2333;--surface-3:#232c40;
  --text:#eef2f9;--muted:#93a0b8;--faint:#64708a;--border:#242d40;--border-2:#313c55;
  --ok:#34d399;--warn:#fbbf24;--bad:#f87171;
  --font-sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono','SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  --radius:14px;--radius-sm:9px;--container:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(1000px 600px at 80% -10%,rgba(99,102,241,.18),transparent 60%),radial-gradient(800px 500px at 0% 0%,rgba(34,211,238,.10),transparent 55%),linear-gradient(180deg,var(--bg),var(--bg-2))}
body::after{content:"";position:fixed;inset:0;z-index:-1;opacity:.35;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 75%)}
h1{font-size:clamp(2rem,5vw,3.25rem);line-height:1.1;font-weight:800;letter-spacing:-.025em;margin:0 0 1rem}
h2{font-size:clamp(1.5rem,3vw,1.9rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin:0 0 .75rem}
h3{font-size:1.2rem;font-weight:800;margin:0 0 .5rem;letter-spacing:-.01em}
h4{font-size:1.05rem;font-weight:700;margin:0 0 .4rem}
p{margin:0 0 1rem}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}
ul{padding-left:1.2rem}
li{margin:.3rem 0}
b{font-weight:700}
code,.mono{font-family:var(--font-mono)}
.container{max-width:var(--container);margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}
.faint{color:var(--faint)}
.center{text-align:center}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.4rem;border-radius:var(--radius-sm);border:1px solid transparent;background:linear-gradient(180deg,#6d6ff5,#5457e8);color:#fff;font-weight:600;font-size:1rem;cursor:pointer;transition:filter .15s;box-shadow:0 6px 18px rgba(80,84,232,.35);font-family:inherit}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border-2);box-shadow:none}
.btn-ghost:hover{background:var(--surface-2)}
.btn-gold{background:linear-gradient(180deg,#eac66a,#d4a943);color:#221a06;box-shadow:0 6px 18px rgba(212,169,67,.3)}
.btn-sm{padding:.45rem .8rem;font-size:.9rem}

.topbar{position:sticky;top:0;z-index:10;backdrop-filter:blur(12px);background:rgba(10,13,20,.78);border-bottom:1px solid var(--border)}
.topbar .container{display:flex;align-items:center;gap:1rem;height:64px}
.brand{display:inline-flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.15rem;color:var(--text);letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.logo-mark{width:30px;height:30px}
.nav{margin-left:auto;display:flex;align-items:center;gap:.25rem 1.1rem;flex-wrap:wrap;justify-content:flex-end}
.nav a{color:var(--muted);font-size:.95rem;font-weight:500}
.nav a:hover{color:var(--text);text-decoration:none}
.nav a.btn{color:#fff}
@media(max-width:640px){.nav .hide-sm{display:none}}

.hero{padding:clamp(3rem,8vw,6rem) 0 2.5rem}
.hero .lede{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--muted);max-width:720px}
.hero-cta{display:flex;gap:.75rem;flex-wrap:wrap;margin:1.5rem 0 1rem}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);margin-bottom:1rem}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 12px var(--accent-2)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}}

.section{padding:3rem 0}
.section-tag{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);margin-bottom:.5rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:1.5rem}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem}
.card .ico{font-size:1.6rem;margin-bottom:.6rem}
.card p{margin:0;color:var(--muted)}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 1px 2px rgba(0,0,0,.4),0 12px 40px rgba(0,0,0,.45);overflow:hidden}
.panel-head{display:flex;align-items:center;gap:.6rem;padding:.6rem .9rem;border-bottom:1px solid var(--border);font-family:var(--font-mono);font-size:.75rem;color:var(--muted)}
.panel-head .dots i{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--surface-3);margin-right:4px}
.panel-body{padding:1rem}
.prose{max-width:760px}
.prose h2{margin-top:2rem}
.notebox{background:rgba(226,184,87,.08);border:1px solid rgba(226,184,87,.35);border-radius:var(--radius-sm);padding:.9rem 1.1rem;margin:1.2rem 0}
.compare{width:100%;border-collapse:collapse;margin-top:1.2rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;font-size:.95rem}
.compare th,.compare td{padding:.7rem .9rem;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
.compare thead th{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.06em}
.compare td.y{color:var(--ok)} .compare td.n{color:var(--faint)}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.price{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin-top:1.5rem}
.price .card .amt{font-size:2rem;font-weight:800;letter-spacing:-.02em}
.price .card ul{padding-left:1.1rem;color:var(--muted);margin:.8rem 0}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem;counter-reset:s}
.steps .card{position:relative;padding-top:2.4rem}
.steps .card::before{counter-increment:s;content:counter(s);position:absolute;top:.9rem;left:1.2rem;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;font-size:.85rem;display:flex;align-items:center;justify-content:center}
details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.6rem 1rem;margin:.5rem 0}
summary{cursor:pointer;font-weight:600}
details div{color:var(--muted);padding:.4rem 0 .3rem}
.footer{border-top:1px solid var(--border);padding:2rem 0 3rem;color:var(--muted);font-size:.9rem}
.footer .container{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;align-items:center}
.footer .grow{flex:1 1 220px}

/* ---- designer ---- */
#mk-designer{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
@media(min-width:760px){#mk-designer{padding:22px}}
#mk-form{display:grid;grid-template-columns:1fr 1.5fr;gap:26px}
.mk-span{grid-column:1/-1}
@media(max-width:760px){#mk-form{grid-template-columns:1fr}}
.mk-door{border:1px solid var(--border);border-radius:12px;padding:10px 10px 8px;margin:0 0 10px;background:var(--bg-2)}
.mk-door .mk-door-row{margin:0 0 8px}
.mk-is-maison{border-color:rgba(226,184,87,.4)}
.mk-pills{display:flex;flex-wrap:wrap;gap:6px;padding-left:30px}
.mk-pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border-2);border-radius:999px;padding:5px 11px;font-size:13px;cursor:pointer;user-select:none;color:var(--text)}
.mk-pill input{accent-color:var(--accent);margin:0}
.mk-pill:has(input:checked){border-color:var(--accent);background:rgba(99,102,241,.16)}
.mk-pill:has(input:disabled){opacity:.45;cursor:default}
.mk-pill-maison{margin-left:auto}
@media(max-width:760px){.mk-pills{padding-left:0}.mk-pill-maison{margin-left:0}}
.mk-col h3{margin:0 0 8px;font-size:16px}
.mk-faint{color:var(--muted);font-size:13px;font-weight:400}
.mk-door-row,.mk-sub-row{display:flex;gap:8px;align-items:center;margin:0 0 8px;flex-wrap:wrap}
.mk-n{width:22px;text-align:right;color:var(--muted);font-size:13px;flex:none}
#mk-designer input[type=text]{flex:1;min-width:0;background:var(--bg-2);border:1px solid var(--border-2);color:var(--text);border-radius:9px;padding:9px 11px;font:inherit;font-size:14.5px}
#mk-designer input:focus{outline:none;border-color:var(--accent)}
.mk-x{background:none;border:1px solid var(--border-2);color:var(--muted);border-radius:8px;width:32px;height:36px;cursor:pointer;flex:none}
.mk-x:hover{color:var(--text);border-color:var(--accent)}
.mk-btn{border-radius:10px;padding:11px 16px;font:inherit;font-weight:700;cursor:pointer;border:1px solid var(--accent);background:none;color:#b9bbff}
.mk-btn.mk-ghost{font-size:14px;padding:8px 12px}
.mk-btn.mk-tiny{font-size:12.5px;padding:5px 9px;white-space:nowrap}
.mk-btn.mk-primary{display:block;width:100%;margin-top:14px;background:linear-gradient(180deg,#6d6ff5,#5457e8);color:#fff;border-color:transparent;font-size:16px;font-weight:800;padding:14px;box-shadow:0 6px 18px rgba(80,84,232,.35)}
.mk-btn:hover{filter:brightness(1.08)}
#mk-result{margin-top:22px}
.mk-card{background:var(--bg-2);border:1px solid var(--border);border-radius:14px;padding:16px}
@media(min-width:760px){.mk-card{padding:18px}}
.mk-card h3{margin:22px 0 6px;font-size:16.5px}
.mk-banner{border-radius:12px;padding:12px 16px;font-size:14.5px;margin:0 0 6px}
.mk-ok{background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.4);color:#bff3dc}
.mk-bad{background:rgba(248,113,113,.1);border:1px solid rgba(248,113,113,.4);color:#ffc9c9}
.mk-warn{background:rgba(251,191,36,.1);border:1px solid rgba(251,191,36,.45);color:#ffe7a8}
.mk-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.mk-table{border-collapse:collapse;width:100%;font-size:13.5px;background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.mk-table th,.mk-table td{padding:7px 9px;border-bottom:1px solid var(--border);text-align:center;white-space:nowrap;vertical-align:middle}
.mk-table th:first-child,.mk-table td.mk-left{text-align:left}
.mk-table thead th{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em}
.mk-cut{display:inline-block;min-width:26px;padding:2px 6px;border-radius:6px;background:var(--surface-2);border:1px solid var(--border-2);font-weight:700;font-family:var(--font-mono)}
.mk-chip{display:inline-block;padding:1px 8px;border-radius:999px;border:1px solid var(--accent);color:#b9bbff;font-size:11.5px;font-weight:700}
.mk-chip-warn{border-color:var(--warn);color:var(--warn)}
.mk-stack{display:inline-flex;flex-direction:column-reverse;gap:2px}
.mk-seg{display:block;min-width:26px;padding:1px 5px;border-radius:5px;font-size:12px;font-weight:700;text-align:center;font-family:var(--font-mono)}
.mk-seg.mk-inline{display:inline-block;padding:0 6px}
.mk-kp{background:var(--surface-3);color:var(--text)} .mk-mp{background:rgba(34,211,238,.18);color:#9ee9f5}
.mk-changed{background:rgba(251,191,36,.08);outline:1px solid rgba(251,191,36,.35)}
.mk-was{font-size:11px;color:var(--warn);margin-top:3px;font-family:var(--font-mono)}
.mk-mx{font-size:11px;font-weight:800;letter-spacing:.04em}
.mk-open{background:rgba(52,211,153,.14);color:#8fe9c2} .mk-blocked{color:#4b5568}
.mk-still{background:rgba(251,191,36,.18);color:var(--warn)}
.mk-wrong{background:rgba(248,113,113,.3);color:#ffb3b3;outline:2px solid #ff8a8a}
.mk-cellbad{background:rgba(248,113,113,.2)}
.mk-share{margin-top:22px;background:rgba(99,102,241,.08);border:1px solid rgba(99,102,241,.3);border-radius:12px;padding:14px 16px;font-size:14px;color:#d8dcea}
.mk-share .mk-sub-row{margin-top:10px}
.mk-retired{font-family:var(--font-mono);font-weight:700;letter-spacing:.08em}
.mk-plan{margin:14px 0 6px;background:var(--surface);border:1px solid rgba(251,191,36,.35);border-radius:12px;padding:14px}
.mk-plan-door{border-top:1px solid var(--border);padding-top:12px;margin-top:12px}
.mk-plan-door h4{margin:0 0 8px}
.mk-todo{margin:8px 0 4px;padding-left:1.1rem;font-size:14px}
.mk-todo li{margin:3px 0}