:root{
  --bg:#F4F1EA; --surface:#FBFAF6; --surface-2:#ECE8DE; --ink:#15171B; --muted:#585955; --line:#D6D0C3;
  --accent:#C2410C; --accent-ink:#FFFFFF; --good:#1D6F46; --good-bg:#E3F0E7; --bad:#A92E1C; --bad-bg:#F7E3DE; --warn:#7A5300; --warn-bg:#F6ECD2;
  --font-display:'Cabinet Grotesk','Satoshi',system-ui,sans-serif; --font-body:'Satoshi','Helvetica Neue',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace; --r:14px; --shadow:0 1px 2px rgba(20,20,20,.05),0 8px 28px rgba(20,20,20,.06);
  --tap:44px;
}
*{box-sizing:border-box;margin:0}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--font-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px}.skip:focus{left:12px;z-index:99;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)} .small{font-size:14px} .tiny{font-size:12.5px}
.eyebrow{font:600 12px/1.2 var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
h1,h2{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.04;overflow-wrap:break-word}
h1{font-size:clamp(38px,7vw,84px);max-width:14ch}
h2{font-size:clamp(28px,4vw,44px);max-width:24ch;margin-bottom:12px}
h3{font:700 19px/1.3 var(--font-body)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}

/* buttons & forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--tap);background:var(--accent);color:var(--accent-ink);font-weight:700;padding:10px 20px;border-radius:999px;border:1px solid transparent;cursor:pointer;text-decoration:none;text-align:center;line-height:1.2}
.btn:hover{filter:brightness(1.07)} .btn:disabled{opacity:.55;cursor:not-allowed}
.btn-ghost{background:transparent;color:inherit;border-color:currentColor}
.btn-quiet{background:var(--surface-2);color:var(--ink)}
.btn-danger{background:var(--bad)}
.btn-sm{min-height:40px;padding:8px 14px;font-size:14px}
.btn-block{width:100%}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label,.label{font-weight:600;font-size:14px}
.field .hint{font-size:13px;color:var(--muted)}
input[type=text],input[type=email],input[type=password],input[type=tel],input[type=number],select,textarea{width:100%;min-height:var(--tap);padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-size:16px}
textarea{resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:2px solid color-mix(in srgb,var(--accent) 30%,transparent);outline-offset:0}
.check{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.45;cursor:pointer;min-height:var(--tap);padding:6px 0}
.check input{width:22px;height:22px;flex:none;margin-top:1px;accent-color:var(--accent)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.span2{grid-column:span 2}
.err-text{color:var(--bad);font-size:14px;font-weight:600}
.hp{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}

/* nav */
.nav{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font:800 21px var(--font-display);letter-spacing:-.01em;text-decoration:none;min-height:var(--tap)}
.mark{width:28px;height:28px;color:var(--ink);flex:none}
.nav-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav-links a{color:var(--muted);text-decoration:none;font-weight:500;font-size:15px;padding:10px 12px;border-radius:8px;min-height:var(--tap);display:inline-flex;align-items:center}
.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--ink);background:var(--surface-2)}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:10px;width:var(--tap);height:var(--tap);cursor:pointer;align-items:center;justify-content:center}
@media (max-width:860px){
  .menu-btn{display:inline-flex}
  .nav-links{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 12px 14px;margin:0}
  .nav.open .nav-links{display:flex}
  .nav-links a{padding:12px;font-size:16px}
  .nav-links .btn{margin-top:6px}
}

/* landing */
.hero{position:relative;color:#F4F1EA;background:#0d0f12;overflow:hidden}
.hero-img{position:absolute;inset:0;background:url(hero.jpg) center 60%/cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,14,.35),rgba(10,11,14,.55) 45%,rgba(10,11,14,.94))}
.hero-in{position:relative;z-index:1;padding-top:clamp(80px,14vw,170px);padding-bottom:56px}
.hero .eyebrow{color:#FFAE85}
.hero .lede{font-size:clamp(17px,1.7vw,20px);max-width:58ch;margin:20px 0 28px;color:#E3DFD5}
.hero .btn-ghost{color:#F4F1EA}
.pill{display:inline-flex;align-items:center;gap:8px;font:600 12px/1 var(--font-mono);letter-spacing:.06em;text-transform:uppercase;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);margin-bottom:18px}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
.facts dt{font:600 11px var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:#C2BDB1}
.facts dd{font-weight:700;font-size:17px;margin-top:4px}
.section{padding:clamp(56px,8vw,104px) 0}
.section-alt{background:var(--surface-2)}
.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:32px}
.steps li{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.steps .num{font:600 13px var(--font-mono);color:var(--accent)}
.steps h3{margin:10px 0 6px}
.steps p,.ctl p{color:var(--muted);font-size:15px}
.ctl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}
.ctl{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.ctl h3{margin-bottom:6px;font-size:17px}
.limits{margin-top:20px;padding-left:20px;display:grid;gap:10px;max-width:72ch}
.example{margin-top:28px;background:var(--surface);border:1px dashed var(--muted);border-radius:var(--r);padding:20px}
.sim{display:inline-block;font:700 11px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;background:var(--warn-bg);color:var(--warn);padding:5px 9px;border-radius:6px;margin-bottom:12px}
.join{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:start}
.formcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(18px,3vw,30px);box-shadow:var(--shadow)}
.faq details{border-top:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:17px;padding:12px 0;min-height:var(--tap);list-style-position:outside}
.faq p{color:var(--muted);padding-bottom:12px;max-width:70ch}
.foot{border-top:1px solid var(--line);padding:32px 0 40px}
.foot-in{display:flex;gap:16px 28px;flex-wrap:wrap;align-items:center}
.foot-in nav{display:flex;gap:4px 16px;flex-wrap:wrap}
.foot-in nav a{color:var(--muted);min-height:var(--tap);display:inline-flex;align-items:center}
.prose{max-width:72ch}
.prose h2{font-size:clamp(24px,3vw,30px);margin:34px 0 10px}
.prose p,.prose li{color:#33342f;margin-bottom:10px}
.prose ul{padding-left:22px}
.draft-banner{background:var(--warn-bg);color:var(--warn);border-radius:10px;padding:12px 14px;font-weight:600;margin:16px 0}

/* app shell */
.app-main{padding:24px 0 80px;min-height:70vh}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(16px,2.6vw,24px);box-shadow:var(--shadow)}
.card + .card{margin-top:16px}
.stack{display:grid;gap:16px}
.page-head{display:flex;gap:12px;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;margin:8px 0 20px}
.page-head h1{font-size:clamp(28px,4.4vw,40px);max-width:none}
.auth{max-width:460px;margin:24px auto}
.tabs{display:flex;gap:4px;background:var(--surface-2);padding:4px;border-radius:12px;overflow-x:auto;scrollbar-width:none}
.tabs button{flex:1 0 auto;border:0;background:none;padding:10px 14px;border-radius:9px;font-weight:600;font-size:14.5px;cursor:pointer;min-height:40px;white-space:nowrap;color:var(--muted)}
.tabs button[aria-selected=true]{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.banner{border-radius:12px;padding:12px 14px;font-weight:500;display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap}
.banner.info{background:var(--surface-2)} .banner.ok{background:var(--good-bg);color:var(--good)} .banner.bad{background:var(--bad-bg);color:var(--bad)} .banner.warn{background:var(--warn-bg);color:var(--warn)}
.chip{display:inline-flex;align-items:center;font:600 11.5px/1 var(--font-mono);letter-spacing:.04em;text-transform:uppercase;padding:6px 8px;border-radius:6px;background:var(--surface-2);color:var(--muted);white-space:nowrap}
.chip.good{background:var(--good-bg);color:var(--good)} .chip.bad{background:var(--bad-bg);color:var(--bad)} .chip.warn{background:var(--warn-bg);color:var(--warn)} .chip.accent{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent)}
.list{display:grid;gap:12px}
.item{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--surface);min-width:0}
.item-head{display:flex;gap:10px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.item h3{font-size:17px;overflow-wrap:anywhere}
.kv{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:4px 14px;font-size:14.5px}
.kv dt{color:var(--muted)} .kv dd{overflow-wrap:anywhere}
.next{list-style:none;padding:0;display:grid;gap:8px}
.next li{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:10px;background:var(--surface-2);font-size:15px}
.next li::before{content:"→";color:var(--accent);font-weight:700}
.msg{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.msg-head{padding:12px 14px;background:var(--surface-2);display:grid;gap:4px;font-size:14.5px}
.msg-head b{display:inline-block;min-width:62px;color:var(--muted);font-weight:600}
.msg-body{white-space:pre-wrap;padding:14px;font-size:14.5px;line-height:1.55;overflow-wrap:anywhere;max-height:420px;overflow:auto}
.msg-actions{padding:12px 14px;border-top:1px solid var(--line);display:flex;gap:8px;flex-wrap:wrap}
.thread{display:grid;gap:10px;margin-top:10px}
.bubble{border-radius:12px;padding:10px 12px;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere;max-height:300px;overflow:auto}
.bubble.out{background:var(--surface-2)} .bubble.in{background:color-mix(in srgb,var(--accent) 9%,var(--surface));border:1px solid color-mix(in srgb,var(--accent) 25%,transparent)}
.bubble .meta{display:block;font:600 11.5px var(--font-mono);color:var(--muted);margin-bottom:6px;white-space:normal}
table.t{width:100%;border-collapse:collapse;font-size:14.5px}
.t th{text-align:left;font:600 12px var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:10px;border-bottom:1px solid var(--line)}
.t td{padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.t .num{text-align:right;font-family:var(--font-mono);white-space:nowrap}
.qcards{display:none}
.qcard{border:1px solid var(--line);border-radius:12px;padding:14px;display:grid;gap:8px}
.qcard .prices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.qcard .prices div{background:var(--surface-2);border-radius:8px;padding:8px}
.qcard .prices dt{font-size:11.5px;color:var(--muted);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em}
.qcard .prices dd{font:700 15px var(--font-mono)}
@media (max-width:720px){ .qtable{display:none} .qcards{display:grid;gap:10px} }
.skeleton{background:linear-gradient(90deg,var(--surface-2),var(--surface),var(--surface-2));background-size:200% 100%;animation:sk 1.2s infinite;border-radius:10px;height:18px}
@keyframes sk{to{background-position:-200% 0}}
.empty{text-align:center;padding:36px 16px;color:var(--muted)}
.empty h3{color:var(--ink);margin-bottom:6px}
.dialog{position:fixed;inset:0;z-index:60;display:flex;align-items:flex-end;justify-content:center;background:rgba(15,16,18,.55);padding:12px}
.dialog-box{background:var(--surface);border-radius:16px;max-width:640px;width:100%;max-height:calc(100dvh - 24px);display:flex;flex-direction:column;overflow:hidden}
.dialog-box header{padding:16px 18px;border-bottom:1px solid var(--line)}
.dialog-box .dialog-body{padding:16px 18px;overflow:auto}
.dialog-box footer{padding:12px 18px;border-top:1px solid var(--line);display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
@media (min-width:721px){ .dialog{align-items:center} }
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);z-index:70;background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:12px;max-width:calc(100vw - 32px);font-weight:500;box-shadow:var(--shadow)}
.section-title{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.section-title h2{font-size:22px;margin:0;font-family:var(--font-body);font-weight:700;letter-spacing:0}
.deal-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;align-items:start}
.side{position:sticky;top:80px;display:grid;gap:16px}
.warn-list{list-style:none;padding:0;display:grid;gap:8px}

@media (max-width:1000px){ .steps{grid-template-columns:repeat(2,minmax(0,1fr))} .deal-grid{grid-template-columns:minmax(0,1fr)} .side{position:static} }
@media (max-width:860px){ .ctl-grid{grid-template-columns:minmax(0,1fr)} .join{grid-template-columns:minmax(0,1fr);gap:24px} .grid3{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:560px){
  .wrap{padding:0 16px}
  .steps,.grid2,.grid3{grid-template-columns:minmax(0,1fr)} .span2{grid-column:auto}
  .facts{grid-template-columns:minmax(0,1fr);gap:12px}
  .hero-cta .btn{width:100%}
  .msg-actions .btn{flex:1 1 auto}
  .kv{grid-template-columns:minmax(0,1fr)} .kv dt{margin-top:6px}
}
@media (prefers-reduced-motion:reduce){ *{animation:none!important;scroll-behavior:auto!important} }
/* QA fixes: narrow-screen example table + 44px disclosure targets */
@media (max-width:420px){.t th{font-size:10.5px;letter-spacing:.02em;padding:8px 6px}.t td{padding:10px 6px}.t th.num{white-space:normal}}
summary{min-height:44px;padding-block:12px;box-sizing:border-box;list-style-position:inside}
.nav-links a.btn,.nav-links a.btn:hover{color:var(--accent-ink);background:var(--accent);justify-content:center;font-weight:700}
.qcard .prices dt{white-space:nowrap;letter-spacing:.02em}
@media (max-width:400px){.qcard .prices dt{font-size:10px}.qcard .prices div{padding:8px 7px}}

/* landing chat */
.chatcard{display:flex;flex-direction:column;gap:12px}
.pc-log{display:flex;flex-direction:column;gap:10px;min-height:200px;max-height:min(440px,60vh);overflow-y:auto;margin-top:0;padding-right:2px;overscroll-behavior:contain;flex-shrink:0}
.pc-log .bubble{max-height:none;overflow:visible;flex-shrink:0}
.pc-log .bubble.out{align-self:flex-end;max-width:88%} .pc-log .bubble.in{align-self:flex-start;max-width:92%}
.pc-typing{opacity:.7;font-style:normal}
.pc-starters{gap:8px;flex-wrap:wrap}
.chip-btn{font:500 13.5px var(--font-body);min-height:40px;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;text-align:left}
.chip-btn:hover{border-color:var(--accent)} .chip-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.pc-ready{border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);background:color-mix(in srgb,var(--accent) 6%,var(--surface));border-radius:12px;padding:12px 14px;display:grid;gap:8px}
.pc-ready .kv{margin:0}
.pc-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:end}
.pc-form textarea{resize:none;min-height:48px}
.pc-form .btn{min-height:48px}
.ticks{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:8px;color:var(--muted)}
.ticks li{padding-left:22px;position:relative} .ticks li::before{content:"";position:absolute;left:2px;top:.55em;width:10px;height:6px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.warn-text{color:var(--warn)}
section[id]{scroll-margin-top:72px}
.pc-note{background:color-mix(in srgb,var(--accent) 8%,var(--surface));border:1px solid color-mix(in srgb,var(--accent) 28%,transparent);border-radius:10px;padding:10px 12px;margin:0 0 14px}

/* plans */
.lede-sm{max-width:62ch}
.tiers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px;align-items:stretch}
.tier{position:relative;display:flex;flex-direction:column;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.tier .ticks{margin:10px 0 18px;flex:1}
.tier .btn{margin-top:auto}
.tier-hl{border:2px solid var(--accent);box-shadow:var(--shadow)}
.tier .tag{position:absolute;top:-12px;left:20px;background:var(--accent);color:var(--accent-ink);font:600 11.5px/1 var(--font-mono);letter-spacing:.06em;text-transform:uppercase;padding:6px 10px;border-radius:999px}
.tier .price{font:800 40px/1.1 var(--font-display);letter-spacing:-.02em}
.tier .price small{font:500 15px var(--font-body);color:var(--muted)}
.tier-sub{color:var(--muted);font-size:15px}
.plan-pick{border:0;padding:0;margin:0 0 14px;display:flex;flex-direction:column;gap:8px}
.plan-pick legend{margin-bottom:8px}
.plan-opt{display:flex;align-items:center;gap:10px;min-height:var(--tap);padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;font-size:15px}
.plan-opt:has(input:checked){border-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--surface))}
.plan-opt input{width:20px;height:20px;accent-color:var(--accent);flex:none}
.qc-out{margin-top:16px;display:grid;gap:12px}
.qc-out .qc-sum{font-size:15px}
.qc-out .qc-figs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.qc-out .qc-fig{background:var(--surface-2);border-radius:10px;padding:10px 12px}
.qc-out .qc-fig b{display:block;font:700 20px var(--font-mono)}
.qc-out .msg-body{white-space:pre-wrap;background:var(--surface-2);border-radius:10px;padding:12px;font-size:14.5px}
@media (max-width:860px){.tiers{grid-template-columns:minmax(0,1fr);gap:22px}}