/* ArkSolo landing — Noir & Gold. Mobile-first H5, scales up to desktop. */
@font-face{font-family:Sora;font-weight:400;font-display:swap;src:url(fonts/sora400.woff2) format("woff2")}
@font-face{font-family:Sora;font-weight:600;font-display:swap;src:url(fonts/sora600.woff2) format("woff2")}
@font-face{font-family:Sora;font-weight:700;font-display:swap;src:url(fonts/sora700.woff2) format("woff2")}
@font-face{font-family:Sora;font-weight:800;font-display:swap;src:url(fonts/sora800.woff2) format("woff2")}
@font-face{font-family:Inter;font-weight:400;font-display:swap;src:url(fonts/inter-regular.woff2) format("woff2")}
@font-face{font-family:Inter;font-weight:500;font-display:swap;src:url(fonts/inter-medium.woff2) format("woff2")}
@font-face{font-family:Inter;font-weight:600;font-display:swap;src:url(fonts/inter-semibold.woff2) format("woff2")}
@font-face{font-family:Mono;font-weight:400;font-display:swap;src:url(fonts/mono400.woff2) format("woff2")}
@font-face{font-family:Mono;font-weight:500;font-display:swap;src:url(fonts/mono500.woff2) format("woff2")}

:root{
  --bg:#0A0906; --bg2:#100E0A; --card:#14120D; --card2:#0D0C09;
  --gold:#D4AF37; --gl:#F0D488; --gd:#9A7B1F;
  --text:#F3EEE2; --sub:#C9C2B2; --muted:#9A9384; --faint:#5C584F;
  --red:#E26A52; --redbg:#170E0B; --green:#4FBF87;
  --line:rgba(212,175,55,.18); --line2:rgba(212,175,55,.42);
  --cjk:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Noto Sans SC",sans-serif;
  --sans:Inter,var(--cjk),system-ui,sans-serif;
  --disp:Sora,var(--cjk),system-ui,sans-serif;
  --mono:Mono,ui-monospace,var(--cjk),monospace;
  --gutter:20px; --maxw:1120px; --top:60px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.6 var(--sans);
  background-image:linear-gradient(180deg,#0E0C08 0,#0A0906 420px);min-height:100vh;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
html:not([data-lang="en"]) .en{display:none!important}
html:not([data-lang="zh"]) .zh{display:none!important}
html:not([data-lang="vi"]) .vi{display:none!important}
html:not([data-lang="ko"]) .ko{display:none!important}
html:not([data-lang="ms"]) .ms{display:none!important}
html:not([data-lang="id"]) .id{display:none!important}
html:not([data-lang="ja"]) .ja{display:none!important}
html:not([data-lang="th"]) .th{display:none!important}
::selection{background:rgba(212,175,55,.35)}
:focus-visible{outline:2px solid var(--gl);outline-offset:3px;border-radius:6px}

/* ── top bar ─────────────────────────────────────────── */
.topbar{position:sticky;top:0;z-index:50;height:var(--top);display:flex;align-items:center;gap:12px;
  padding:0 var(--gutter);background:rgba(10,9,6,.86);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.brandmark{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.brandmark img{width:32px;height:32px}
.brandmark b{font:700 15px/1 var(--disp);letter-spacing:.18em}
.brandmark b i{font-style:normal;color:var(--gold)}
.lang{position:relative}
.lang-btn{all:unset;cursor:pointer;display:flex;align-items:center;gap:7px;height:40px;padding:0 12px;border-radius:12px;border:1px solid var(--line2);
  font:600 13px/1 var(--sans);color:var(--text);white-space:nowrap}
.lang-btn:hover,.lang.open .lang-btn{border-color:var(--gold)}
.lang-btn>svg:first-child{width:17px;height:17px;color:var(--gold)}
.lang-btn>svg:last-child{width:13px;height:13px;color:var(--muted);transition:transform .2s}
.lang.open .lang-btn>svg:last-child{transform:rotate(180deg)}
.lang-list{display:none;position:absolute;right:0;top:calc(100% + 8px);z-index:70;list-style:none;margin:0;padding:6px;min-width:200px;
  background:#15130E;border:1px solid var(--line2);border-radius:14px;box-shadow:0 24px 50px -20px rgba(0,0,0,.9)}
.lang.open .lang-list{display:block}
.lang-list button{all:unset;box-sizing:border-box;cursor:pointer;display:flex;align-items:center;justify-content:space-between;width:100%;padding:11px 14px;border-radius:10px;
  font:600 15px/1.2 var(--sans);color:var(--text)}
.lang-list button:hover,.lang-list button:focus-visible{background:#1F1B12}
.lang-list button[aria-checked="true"]{color:var(--gold)}
.lang-list button[aria-checked="true"]::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}
.menubtn{all:unset;cursor:pointer;width:40px;height:40px;display:grid;place-items:center;border-radius:12px;border:1px solid var(--line2)}
.menubtn svg{width:20px;height:20px}
.btn.top-cta{display:none}

/* ── menu overlay ────────────────────────────────────── */
.menu{position:fixed;inset:0;z-index:60;background:rgba(8,7,5,.97);display:none;flex-direction:column;overflow-y:auto;
  padding:calc(var(--top) + 8px) var(--gutter) 28px}
.menu.open{display:flex}
.menu .close{position:absolute;top:10px;right:var(--gutter)}
.menu h2{font:500 12px/1 var(--mono);letter-spacing:.2em;color:var(--gold);text-transform:uppercase;margin:6px 0 14px}
.menu ol{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.menu li a{display:flex;align-items:baseline;gap:14px;padding:13px 4px;text-decoration:none;border-bottom:1px solid var(--line);
  font:600 19px/1.3 var(--disp)}
.menu li a span.n{font:500 13px var(--mono);color:var(--muted);width:24px;flex:none}
.menu li a[aria-current="page"]{color:var(--gold)}
.menu li a[aria-current="page"] span.n{color:var(--gold)}
.menu .btn{margin-top:22px}

/* ── page scaffold ───────────────────────────────────── */
main{max-width:var(--maxw);margin:0 auto;padding:34px var(--gutter) 40px}
.kick{display:flex;align-items:center;gap:10px;font:500 12px/1.4 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin:0 0 14px}
.kick::before{content:"";width:26px;height:1px;background:var(--gold);flex:none}
h1{font:700 34px/1.16 var(--disp);letter-spacing:-.015em;margin:0 0 14px}
h1 em,h2 em,.em{font-style:normal;color:var(--gold)}
h2{font:700 25px/1.25 var(--disp);letter-spacing:-.01em;margin:44px 0 12px}
h3{font:600 19px/1.3 var(--disp);margin:0 0 6px}
.lead{font-size:17px;color:var(--sub);margin:0 0 26px;max-width:720px}
p{margin:0 0 12px;color:var(--sub)}
.small{font-size:14px;color:var(--muted);line-height:1.55}
.note{font-size:12.5px;color:var(--faint);line-height:1.55;margin-top:18px}
.mono{font-family:var(--mono)}
.tag{font:500 11.5px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.num{font:500 13px var(--mono);letter-spacing:.14em;color:var(--gold)}
.stack{display:grid;gap:14px}
.grid2,.grid3,.grid4{display:grid;gap:14px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* cards, pills, buttons */
.card{background:linear-gradient(180deg,var(--card) 0,var(--card2) 100%);border:1px solid var(--line);border-radius:18px;padding:20px}
.card.lit{border-color:var(--line2);background:linear-gradient(180deg,#1E1A10 0,#100E09 100%)}
.card.red{border-color:rgba(226,106,82,.42);background:linear-gradient(180deg,#1A100C 0,#120C0A 100%)}
.card p:last-child{margin-bottom:0}
.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line2);border-radius:999px;padding:7px 14px;font:500 13.5px/1.2 var(--sans);color:var(--text)}
.pill.gold{background:var(--gold);color:#0A0906;border-color:var(--gold);font-weight:600}
.pill.red{border-color:rgba(226,106,82,.55);color:#F2B4A6;background:var(--redbg)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 24px;border-radius:14px;
  background:linear-gradient(180deg,var(--gl) 0,var(--gold) 100%);color:#0A0906;font:700 16px/1 var(--disp);text-decoration:none;border:0;cursor:pointer}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line2)}
.btn.block{display:flex;width:100%}
.btn svg{width:18px;height:18px}
.ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line2);color:var(--gold);flex:none;background:#15120B}
.ic svg{width:22px;height:22px}
.ic.red{color:var(--red);border-color:rgba(226,106,82,.5);background:var(--redbg)}
.chk{display:flex;gap:12px;align-items:flex-start;margin:10px 0;color:var(--text)}
.chk::before{content:"";flex:none;width:22px;height:22px;border-radius:50%;margin-top:1px;
  background:var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230A0906' stroke-width='3.2' stroke-linecap='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/14px no-repeat}
.dot{display:flex;gap:10px;align-items:center;margin:8px 0;color:var(--sub)}
.dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red);flex:none}

/* brand badges (logos supplied by the owner) */
.brand{display:inline-flex;align-items:center;gap:8px;background:#F3EEE2;color:#111;border-radius:10px;padding:6px 12px;font:700 14px/1 var(--disp)}
.brand img{height:20px;width:auto}
.logo-panel{background:#F3EEE2;border-radius:14px;height:96px;display:grid;place-items:center;padding:12px}
.logo-panel img{max-height:70px;max-width:88%;width:auto;height:auto}
.logo-pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.logo-pair .logo-panel img{max-width:92%}

/* device frames */
.browser{border:1px solid var(--line2);border-radius:14px;overflow:hidden;background:#0B0A07;box-shadow:0 30px 60px -30px rgba(0,0,0,.8)}
.browser .bar{height:28px;display:flex;align-items:center;gap:6px;padding:0 12px;border-bottom:1px solid var(--line);background:#121009}
.browser .bar i{width:8px;height:8px;border-radius:50%;background:#3a352a}
.browser .bar span{margin-left:10px;font:400 11px var(--mono);color:var(--muted)}
.browser img{width:100%}
.phone{width:min(260px,72vw);border-radius:34px;padding:9px;background:#15130E;border:1px solid var(--line2);box-shadow:0 40px 70px -30px rgba(0,0,0,.85);margin:0 auto}
.phone img{border-radius:26px;width:100%}
.cap{font:500 11px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:10px}
figure{margin:0}

/* steps / timeline */
.steps{display:grid;gap:0;position:relative}
.step{display:grid;grid-template-columns:56px 1fr;gap:16px;position:relative;padding-bottom:22px}
.step:not(:last-child)::after{content:"";position:absolute;left:27px;top:56px;bottom:0;border-left:2px dashed rgba(212,175,55,.45)}
.step .circ{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--gold);background:#13110C;color:var(--gold)}
.step .circ svg{width:24px;height:24px}
.step.end .circ{background:var(--gold);color:#0A0906}
.step h3{margin:4px 0 4px}
.step p{margin:0;font-size:15px}

/* hero */
.hero{display:grid;gap:30px;padding-top:10px}
.hero h1{font-size:46px;line-height:1.05;margin:6px 0 18px}
.hero .big{font:800 64px/1 var(--disp);letter-spacing:-.03em;margin:0 0 16px}
.hero .big i{font-style:normal;color:var(--gold)}
.hero .tagline{font:500 21px/1.35 var(--disp);margin:0 0 22px}
.hero .tagline span.g{color:var(--gold)}
.hero .ctas{display:grid;gap:10px;margin:22px 0 10px}
.hero-visual{position:relative}
.hero-visual .browser{display:none}
.hero-visual .phone{position:relative;z-index:2;margin:0 auto}
.toc{display:grid;gap:8px;margin-top:8px}
.toc a{display:flex;justify-content:space-between;align-items:center;text-decoration:none;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:#100E0A}
.toc a b{font:600 16px var(--disp)}
.toc a > span{font:500 12px var(--mono);color:var(--muted)}

/* charts */
.reach{display:grid;gap:14px}
.reach .card{padding:18px 18px 10px}
.reach .hd{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:10px}
.reach .hd b{font:700 20px var(--disp)}
.reach .tot{text-align:right}
.reach .tot strong{display:block;font:800 32px/1 var(--disp);color:var(--gold)}
.bar-row{display:grid;grid-template-columns:96px 1fr;align-items:center;height:34px;border-bottom:1px solid rgba(212,175,55,.08)}
.bar-row .c{font-size:13.5px;color:var(--sub)}
.bar-row .t{display:flex;align-items:center;height:100%;border-left:1px solid rgba(212,175,55,.35)}
.bar-row .b{height:14px;border-radius:0 4px 4px 0;background:var(--gold)}
.bar-row .v{font:500 12.5px var(--mono);margin-left:8px;color:var(--text);white-space:nowrap}
.bar-row .na{font:500 12px var(--mono);color:var(--muted);margin-left:8px}

/* chat mock */
.chat{display:flex;flex-direction:column;gap:10px;padding:14px;border-radius:22px;background:#0F0D09;border:1px solid var(--line2);max-width:420px}
.chat .who{display:flex;align-items:center;gap:10px;padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:4px}
.chat .who img{width:34px;height:34px}
.chat .who b{font:600 15px var(--disp);display:block}
.chat .who small{font:400 11px var(--mono);color:var(--green)}
.msg{max-width:84%;padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.45}
.msg.me{align-self:flex-end;background:var(--gold);color:#0A0906;border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start;background:#1C1912;color:var(--text);border-bottom-left-radius:4px}
.msg b{display:block}

/* worked example table */
.ledger div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:15px}
.ledger div b{font:500 15px var(--mono);white-space:nowrap}
.ledger .g span,.ledger .g b{color:var(--gl)}
.ledger .t{border:0;padding-top:14px;font-size:18px}
.ledger .t b{color:var(--gold);font-size:18px}

/* compare */
.cmp{display:grid;gap:12px}
.cmp .card{padding:16px 18px}
.cmp .k{font:600 16px var(--disp);margin-bottom:8px}
.cmp .u{color:#F2B4A6;font-size:14.5px;display:flex;gap:8px}
.cmp .a{color:var(--text);font-size:14.5px;display:flex;gap:8px;margin-top:6px}
.cmp .u::before{content:"✕";color:var(--red);font-weight:700}
.cmp .a::before{content:"✓";color:var(--gold);font-weight:700}

/* tiers */
.tier{position:relative}
.tier .big-n{position:absolute;right:18px;top:12px;font:800 44px/1 var(--disp);color:rgba(212,175,55,.25)}
.tier.lit .big-n{color:rgba(212,175,55,.9)}
.miniflow{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-top:14px;padding:10px 12px;border-radius:12px;background:#0B0A08;border:1px solid var(--line);font-size:12.5px;color:var(--text)}
.miniflow span{display:flex;align-items:center;gap:6px;white-space:nowrap}
.miniflow svg{width:16px;height:16px;color:var(--gold)}
.miniflow i{color:var(--gold);font-style:normal}

/* next + footer */
.next{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:46px;padding:20px;border-radius:18px;
  text-decoration:none;border:1px solid var(--line2);background:linear-gradient(180deg,#17140D 0,#0F0D09 100%)}
.next small{display:block;font:500 11.5px var(--mono);letter-spacing:.16em;color:var(--muted);text-transform:uppercase;margin-bottom:6px}
.next b{font:700 19px/1.3 var(--disp)}
.next .arr{width:46px;height:46px;border-radius:50%;background:var(--gold);color:#0A0906;display:grid;place-items:center;flex:none}
.next .arr svg{width:20px;height:20px}
footer{max-width:var(--maxw);margin:0 auto;padding:26px var(--gutter) 120px;border-top:1px solid var(--line);color:var(--faint);font-size:12.5px}
footer .row{justify-content:space-between}
.ctabar.hide{transform:translateY(130%)}
.ctabar{transition:transform .25s ease;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
  background:linear-gradient(180deg,rgba(10,9,6,0) 0,rgba(10,9,6,.92) 30%)}

/* form */
.form{display:grid;gap:14px}
.field label{display:block;font:600 14px var(--sans);margin-bottom:6px}
.field label small{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;min-height:50px;border-radius:12px;border:1px solid var(--line2);background:#0F0D09;color:var(--text);
  font:400 16px var(--sans);padding:12px 14px}
.field textarea{min-height:90px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(212,175,55,.2)}
.field .err{display:none;color:#F2B4A6;font-size:13px;margin-top:6px}
.field.bad .err{display:block}
.field.bad input,.field.bad select{border-color:var(--red)}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--sub)}
.consent input{width:20px;height:20px;accent-color:var(--gold);margin-top:2px;flex:none}
.notice{display:none;padding:14px 16px;border-radius:12px;font-size:14.5px}
.notice.show{display:block}
.notice.ok{background:rgba(79,191,135,.12);border:1px solid rgba(79,191,135,.45);color:#BDEBD3}
.notice.warn{background:var(--redbg);border:1px solid rgba(226,106,82,.5);color:#F2B4A6}
.done{text-align:center;padding:30px 10px}
.done .big{width:76px;height:76px;margin:0 auto 18px;border-radius:50%;background:var(--gold);display:grid;place-items:center;color:#0A0906}
.done .big svg{width:36px;height:36px}

/* ── wider screens ───────────────────────────────────── */
@media (min-width:720px){
  :root{--gutter:32px}
  h1{font-size:48px}
  h2{font-size:30px}
  .lead{font-size:19px}
  .grid2{grid-template-columns:1fr 1fr}
  .grid3{grid-template-columns:repeat(3,1fr)}
  .grid4{grid-template-columns:repeat(2,1fr)}
  .reach{grid-template-columns:repeat(3,1fr)}
  .cmp{grid-template-columns:1fr 1fr}
  .hero h1{font-size:64px}
  .hero .big{font-size:96px}
  .hero .ctas{display:flex;flex-wrap:wrap}
}
@media (min-width:1024px){
  :root{--top:68px}
  main{padding-top:56px}
  h1{font-size:56px;max-width:960px}
  .grid4{grid-template-columns:repeat(4,1fr)}
  .hero{grid-template-columns:1fr 1.05fr;align-items:center;min-height:calc(100vh - 140px)}
  .hero-visual{padding:0 0 70px 90px;margin-right:-110px}
  .hero-visual .browser{display:block;width:100%;opacity:.95}
  .hero-visual .phone{position:absolute;left:0;bottom:0;width:172px;margin:0;padding:7px;border-radius:28px}
  .hero-visual .phone img{border-radius:22px}
  .toc{grid-template-columns:repeat(3,1fr)}
  .curve{max-width:780px}
  .wide-shot{max-width:900px}
  .steps.h{grid-template-columns:repeat(var(--n),1fr);gap:22px}
  .steps.h .step{grid-template-columns:1fr;gap:12px;padding:0}
  .steps.h .step:not(:last-child)::after{left:56px;right:-22px;top:27px;bottom:auto;border-left:0;border-top:2px dashed rgba(212,175,55,.45)}
  .btn.top-cta{display:inline-flex;min-height:40px;padding:0 16px;font-size:14px;border-radius:12px}
  .ctabar{display:none}
  footer{padding-bottom:40px}
  .split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
  .split.wide-l{grid-template-columns:1.25fr 1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ───────────── v2: site navigation, bands, feature layouts ───────────── */
.nav{display:none}
.nav a,.nav .dd>button{all:unset;cursor:pointer;font:500 14.5px/1 var(--sans);color:var(--sub);padding:10px 12px;border-radius:10px;display:inline-flex;align-items:center;gap:6px}
.nav a:hover,.nav .dd>button:hover,.nav a[aria-current="page"],.nav .dd.cur>button{color:var(--gold)}
.nav .dd{position:relative}
.nav .dd>button svg{width:14px;height:14px;transition:transform .2s}
.nav .dd .panel{position:absolute;top:calc(100% + 8px);left:-8px;min-width:300px;padding:8px;border-radius:16px;border:1px solid var(--line2);
  background:#0F0D09;box-shadow:0 30px 60px -20px rgba(0,0,0,.8);display:none}
.nav .dd:hover .panel,.nav .dd:focus-within .panel,.nav .dd.open .panel{display:block}
.nav .dd:hover>button svg,.nav .dd.open>button svg{transform:rotate(180deg)}
.nav .panel a{display:flex;gap:12px;align-items:flex-start;padding:12px;border-radius:12px;width:100%;box-sizing:border-box;color:var(--text)}
.nav .panel a:hover{background:#17140D;color:var(--text)}
.nav .panel a b{display:block;font:600 15px/1.3 var(--disp)}
.nav .panel a small{display:block;font:400 12.5px/1.4 var(--sans);color:var(--muted);margin-top:3px}
.nav .panel .ic{width:36px;height:36px;border-radius:10px}
.nav .panel .ic svg{width:18px;height:18px}
.menu .grp{font:500 11.5px var(--mono);letter-spacing:.18em;color:var(--muted);text-transform:uppercase;padding:18px 4px 4px}
.menu li.sub a{padding-left:20px;font-size:17px}

.band{padding:44px 0 0}
.band + .band{margin-top:8px}
.band .kick{margin-bottom:10px}
.band h2{margin-top:0}
.eyebrow-n{font:800 15px var(--mono);color:var(--gold)}
.feat{display:grid;gap:26px;align-items:center}
.feat .media{position:relative}
.feat .media .phone{margin:0 auto}
.list{display:grid;gap:10px;margin:14px 0 0;padding:0;list-style:none}
.list li{display:flex;gap:12px;align-items:flex-start;color:var(--sub)}
.list li b{color:var(--text);font-weight:600}
.list li .ic{width:38px;height:38px;border-radius:10px}
.list li .ic svg{width:18px;height:18px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.fcard{display:flex;flex-direction:column;text-decoration:none;overflow:hidden;padding:0}
.fcard .shot{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);background:#0B0A07}
.fcard .shot img{width:100%;height:100%;object-fit:cover;object-position:top left}
.fcard .txt{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.fcard .go{margin-top:auto;padding-top:10px;display:inline-flex;align-items:center;gap:8px;font:600 14px var(--disp);color:var(--gold)}
.fcard .go svg{width:16px;height:16px}
.fcard:hover{border-color:var(--line2)}
.pillar{text-align:left}
.pillar .big{font:800 30px/1 var(--disp);color:var(--gold);margin:14px 0 8px}
.ctaband{margin-top:50px;padding:34px 22px;border-radius:22px;text-align:center;border:1px solid var(--line2);
  background:linear-gradient(180deg,#1E1A10 0,#0F0D09 100%)}
.ctaband img{width:64px;margin:0 auto 14px}
.ctaband h2{margin:0 0 10px}
.ctaband p{margin:0 auto 18px;max-width:560px}
.risk{border:1px solid rgba(226,106,82,.42);background:var(--redbg);border-radius:14px;padding:14px 16px;color:#F2B4A6;font-size:13.5px;line-height:1.55;margin-top:16px;display:flex;gap:12px}
.risk svg{width:20px;height:20px;flex:none;margin-top:1px}
.loop{display:grid;gap:12px;counter-reset:lp}
.loop .card{display:flex;gap:14px;align-items:flex-start}
.loop .n{width:40px;height:40px;border-radius:50%;flex:none;display:grid;place-items:center;border:2px solid var(--gold);color:var(--gold);font:700 15px var(--disp)}
.loop .card:last-child .n{background:var(--gold);color:#0A0906}
.foot{max-width:var(--maxw);margin:0 auto;padding:34px var(--gutter) 120px;border-top:1px solid var(--line);display:grid;gap:26px}
.foot .brandmark{margin:0}
.foot h4{font:500 11.5px var(--mono);letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin:0 0 10px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot a{text-decoration:none;color:var(--sub);font-size:14px}
.foot a:hover{color:var(--gold)}
.foot .legal{grid-column:1/-1;color:var(--faint);font-size:12px;border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.wl-wrap{max-width:640px;margin:0 auto}
@media (min-width:720px){
  .foot{grid-template-columns:1.4fr 1fr 1fr}
}
@media (min-width:1024px){
  .nav{display:flex;align-items:center;gap:2px;margin-right:auto;margin-left:22px}
  .brandmark{margin-right:0}
  .menubtn[data-open-menu]{display:none}
  .feat{grid-template-columns:1fr 1fr;gap:56px}
  .feat.rev .media{order:-1}
  .feat.wide{grid-template-columns:1.1fr .9fr}
  .band{padding-top:72px}
  .ctaband{padding:52px 40px}
  .loop{grid-template-columns:repeat(5,1fr)}
  .loop .card{flex-direction:column}
  .foot{padding-bottom:40px}
}
.feat>*,.grid2>*,.grid3>*{min-width:0}
.ledger.wrap b{white-space:normal;text-align:right}
/* academy: featured coach */
.coach{display:grid;gap:22px;padding:22px}
.coach-ph{margin:0;border-radius:18px;overflow:hidden;border:2px solid var(--gold);aspect-ratio:1/1;max-width:340px;width:100%;justify-self:center;background:#f0f0f0}
.coach-ph img{width:100%;height:100%;object-fit:cover}
.coach-role{font:600 15px/1.4 var(--disp);color:var(--gold);margin:0 0 10px;letter-spacing:.01em}
.coach-quote{font:italic 500 17px/1.5 var(--disp);color:var(--text);margin:0 0 12px}
.creds{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.creds .chk{margin:6px 0;font-size:14.5px;line-height:1.45}
.spec{display:flex;gap:14px;align-items:flex-start}
@media (min-width:1024px){
  .coach{grid-template-columns:340px 1fr;gap:40px;padding:34px;align-items:start}
  .creds{grid-template-columns:1fr 1fr;column-gap:22px}
}
/* about: a 5th feature card spans the row */
@media (min-width:720px){
  .grid2>.fcard:last-child:nth-child(odd){grid-column:1/-1;flex-direction:row}
  .grid2>.fcard:last-child:nth-child(odd) .shot{flex:0 0 52%;border-bottom:0;border-right:1px solid var(--line)}
  .grid2>.fcard:last-child:nth-child(odd) .txt{justify-content:center;padding:26px 30px}
}
/* trading bot: backtest */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.tiles .card{padding:16px}
.tiles .tn{font:800 28px/1.05 var(--disp);color:var(--gold);margin-bottom:8px;white-space:nowrap}
.tiles b{display:block;font:600 14.5px/1.3 var(--disp);color:var(--text)}
@media (min-width:1024px){.tiles{grid-template-columns:repeat(4,1fr)}.tiles .tn{font-size:36px}}
.btchart{--s1:#B08E27;--s2:#3987e5;margin-top:14px;border:1px solid var(--line);border-radius:16px;background:#0F0D09;padding:14px 12px 6px}
.btchart .legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12.5px;color:var(--sub);padding:0 4px 8px}
.btchart .legend span{display:inline-flex;align-items:center;gap:7px}
.btchart .legend i{width:16px;height:3px;border-radius:2px;display:inline-block}
.btchart .legend i.s1{background:var(--s1)}
.btchart .legend i.s2{background:var(--s2)}
.btchart .plot{position:relative}
.btchart svg{display:block;width:100%;height:auto;overflow:visible}
.btchart .grid{stroke:rgba(212,175,55,.1);stroke-width:1}
.btchart .zero{stroke:rgba(240,230,200,.38);stroke-width:1}
.btchart .ax{fill:var(--muted);font:500 10.5px var(--mono)}
.btchart path{fill:none;stroke-width:2.2;stroke-linejoin:round;stroke-linecap:round}
.btchart path.s1{stroke:var(--s1)}
.btchart path.s2{stroke:var(--s2)}
.btchart .dot{stroke:#0F0D09;stroke-width:2}
.btchart .dot.d0,.btchart .hv.s1{fill:var(--s1)}
.btchart .dot.d1,.btchart .hv.s2{fill:var(--s2)}
.btchart .hv{stroke:#0F0D09;stroke-width:2;pointer-events:none}
.btchart .ln-lab{fill:var(--text);font:600 11.5px var(--sans);paint-order:stroke;stroke:#0F0D09;stroke-width:4px;stroke-linejoin:round}
.btchart .xh{stroke:rgba(240,230,200,.35);stroke-width:1;stroke-dasharray:3 3;opacity:0;pointer-events:none}
.btchart .hit{fill:transparent;cursor:crosshair}
.btchart .tip{position:absolute;top:0;z-index:3;min-width:150px;padding:9px 11px;border-radius:10px;border:1px solid var(--line2);background:#17140D;
  font-size:12.5px;line-height:1.5;color:var(--text);pointer-events:none;box-shadow:0 14px 30px -14px rgba(0,0,0,.9)}
.btchart .tip b{display:block;font:600 13px var(--disp);margin-bottom:3px}
.btchart .tip .r{display:flex;justify-content:space-between;gap:14px}
.btchart .tip .r span{display:inline-flex;align-items:center;gap:6px;color:var(--sub)}
.btchart .tip .r i{width:8px;height:8px;border-radius:50%;display:inline-block}
.bt-table{width:100%;border-collapse:collapse;margin-top:14px;font-size:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.bt-table th{font:500 11.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);text-align:right;padding:12px 14px;background:#121009}
.bt-table th:first-child,.bt-table td:first-child{text-align:left}
.bt-table td{padding:13px 14px;border-top:1px solid var(--line);text-align:right;font-variant-numeric:tabular-nums;color:var(--text)}
.bt-table td.pos,.bt-table td.neg{font-weight:600}
.finep{font-size:12.5px;line-height:1.6;color:var(--muted);margin:26px 0 0;max-width:900px}
@media (min-width:720px){.grid2>.fcard:last-child:nth-child(odd) .go{margin-top:8px}}
.btchart .hv{visibility:hidden}
.btchart .ln-lab.sub{fill:var(--muted);font-weight:500;font-size:10.5px}
.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tscroll .bt-table{min-width:520px}
.bt-table th:not(:first-child),.bt-table td:not(:first-child){white-space:nowrap}
@media (max-width:719px){
  .tscroll .bt-table{min-width:0;font-size:13.5px}
  .tscroll .bt-table th:nth-child(2),.tscroll .bt-table td:nth-child(2){display:none}
  .bt-table th,.bt-table td{padding:11px 9px}
  .bt-table th{font-size:10px;letter-spacing:.06em}
}
.btchart .band{fill:rgba(226,106,82,.16)}
.btchart .ax.evt{fill:#F2B4A6;font-weight:600;letter-spacing:.08em}
.btchart .legend i.bandkey{height:10px;width:12px;border-radius:2px;background:rgba(226,106,82,.35)}
.stress .ledger div{padding:8px 0;font-size:14px}
.stress .ledger b{font-variant-numeric:tabular-nums}
.bt-table.yr td.ybar{width:42%;padding-left:6px;padding-right:6px}
.yb{position:relative;display:block;height:12px;background:linear-gradient(90deg,transparent calc(50% - .5px),rgba(240,230,200,.35) calc(50% - .5px),rgba(240,230,200,.35) calc(50% + .5px),transparent calc(50% + .5px))}
.yb i{position:absolute;top:0;bottom:0;border-radius:3px}
.yb i.pos{background:#B08E27;border-radius:0 3px 3px 0}
.yb i.neg{background:#d55181;border-radius:3px 0 0 3px}
.bt-table sup{color:var(--muted);font-size:10px}
html.motion .rv .yb i{transform:scaleX(0);transition:transform 1s cubic-bezier(.2,.7,.2,1) .2s}
html.motion .rv .yb i.pos{transform-origin:left}
html.motion .rv .yb i.neg{transform-origin:right}
html.motion .rv.in .yb i{transform:none}
.tiles.t3>.card:first-child{grid-column:1/-1}
@media (min-width:1024px){.tiles.t3{grid-template-columns:repeat(3,1fr)}.tiles.t3>.card:first-child{grid-column:auto}}
@media (max-width:719px){.tscroll .bt-table th:nth-child(2),.tscroll .bt-table td:nth-child(2){display:table-cell}}

/* fonts for the scripts Sora/Inter don't cover */
html[lang="ja"]{--cjk:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo","Noto Sans JP","Noto Sans CJK JP",sans-serif}
html[lang="ko"]{--cjk:"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR","Noto Sans CJK KR",sans-serif}
html[lang="th"]{--cjk:"Thonburi","Leelawadee UI","Noto Sans Thai","Sukhumvit Set",sans-serif}
html[lang="th"] body{line-height:1.7}
html[lang="ko"] h1,html[lang="ko"] h2,html[lang="ko"] h3,html[lang="ko"] p,html[lang="ko"] li{word-break:keep-all}
html[lang="ja"] h1,html[lang="ja"] h2{line-break:strict}
/* Ark ship behind every page. First visit per session: full-screen intro with a loading bar,
   then the same looping video fades back to a faint background so content stays the focus. */
.bgvid{position:fixed;inset:0;width:100%;height:100%;object-fit:cover;object-position:88% center;z-index:-2;pointer-events:none;background:#0A0906;
  opacity:.2;filter:saturate(.85);transition:opacity 1.6s ease,filter 1.6s ease}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;transition:opacity 1.6s ease;
  background:linear-gradient(180deg,rgba(10,9,6,.55) 0,rgba(10,9,6,.2) 40%,rgba(10,9,6,.6) 100%)}
@media (min-width:1024px){.bgvid{object-position:center}}

html.intro{overflow:hidden}
html.intro .bgvid{opacity:1;filter:none;z-index:150}
html.intro body::after{opacity:0}
html.intro body>:not(.bgvid):not(.splash):not(script){visibility:hidden}
html.intro-out body>:not(.bgvid):not(.splash):not(script){animation:introIn 1s ease .35s both}
@keyframes introIn{from{opacity:0}to{opacity:1}}
.splash{display:none}
html.intro .splash,.splash.out{position:fixed;inset:0;z-index:160;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;
  padding:24px 16px max(56px,calc(env(safe-area-inset-bottom) + 40px));
  background:linear-gradient(180deg,rgba(0,0,0,.45) 0,rgba(0,0,0,0) 26%,rgba(0,0,0,0) 52%,rgba(0,0,0,.82) 100%);transition:opacity .9s ease}
.splash.out{opacity:0;pointer-events:none}
.sp-in{display:flex;flex-direction:column;align-items:center;gap:14px;animation:spUp 1.1s cubic-bezier(.2,.7,.2,1) .2s both}
.sp-in img{width:56px;height:56px;filter:drop-shadow(0 4px 18px rgba(0,0,0,.6))}
.sp-word{font:700 22px/1 Sora,system-ui,sans-serif;letter-spacing:.32em;color:#F4EFE3;padding-left:.32em;text-shadow:0 2px 16px rgba(0,0,0,.7)}
.sp-word i{font-style:normal;color:#D4AF37}
.sp-bar{width:min(260px,64vw);height:3px;border-radius:3px;background:rgba(244,239,227,.18);overflow:hidden;margin-top:6px}
.sp-bar i{display:block;height:100%;background:linear-gradient(90deg,#B08E27,#E9CB6B);transform-origin:left;transform:scaleX(0);box-shadow:0 0 12px rgba(212,175,55,.6)}
.sp-pct{font:500 11px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.24em;text-transform:uppercase;color:rgba(244,239,227,.72)}
.sp-skip{position:absolute;top:max(18px,env(safe-area-inset-top));right:16px;appearance:none;border:1px solid rgba(244,239,227,.28);background:rgba(10,9,6,.35);
  color:#F4EFE3;font:500 13px/1 Inter,system-ui,sans-serif;padding:9px 16px;border-radius:999px;cursor:pointer;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.sp-skip:hover,.sp-skip:focus-visible{border-color:#D4AF37;color:#E9CB6B;outline:none}
@keyframes spUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (min-width:1024px){.sp-skip{right:28px;top:24px}.sp-word{font-size:26px}}