/* BriefIde: gaya bersama halaman depan, panduan, dan privasi */
:root{
  --bg:#F3F5FA; --surface:#FFFFFF; --surface-2:#E9EDF6; --line:#D6DCEA;
  --ink:#0E1424; --ink-2:#51607E;
  --brand:#2457F5; --brand-ink:#FFFFFF; --brand-soft:#E0E8FF;
  --ai:#8A5200; --ai-soft:#FBE9C8;
  --ok:#0B7A4B; --bad:#B42318;
  --code-bg:#0B1226; --code-ink:#DCE5FF; --code-dim:#7F8FB8; --code-mark:rgba(109,149,255,.30);
  --display:'Sora','Plus Jakarta Sans',system-ui,sans-serif;
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#080D1A; --surface:#0F1629; --surface-2:#172038; --line:#25304D;
    --ink:#E8EDFA; --ink-2:#97A5C6;
    --brand:#6D95FF; --brand-ink:#061030; --brand-soft:#16264F;
    --ai:#F0B04A; --ai-soft:#33260F;
    --ok:#4ADE9A; --bad:#FF8A80;
    --code-bg:#050A17; --code-ink:#DCE5FF; --code-dim:#6F7FA8; --code-mark:rgba(109,149,255,.32);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#080D1A; --surface:#0F1629; --surface-2:#172038; --line:#25304D;
  --ink:#E8EDFA; --ink-2:#97A5C6;
  --brand:#6D95FF; --brand-ink:#061030; --brand-soft:#16264F;
  --ai:#F0B04A; --ai-soft:#33260F;
  --ok:#4ADE9A; --bad:#FF8A80;
  --code-bg:#050A17; --code-ink:#DCE5FF; --code-dim:#6F7FA8; --code-mark:rgba(109,149,255,.32);
  color-scheme:dark;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;
  padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
img,svg{max-width:100%}
a{color:var(--brand);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--display);letter-spacing:-.02em;line-height:1.18;margin:0}
p{margin:0 0 1em}

.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:10}
.skip:focus{left:12px}

/* Header */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:-.01em;color:var(--ink);text-decoration:none}
.brand em{font-style:normal;color:var(--brand)}
.mark{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--brand);color:var(--brand-ink)}
.nav{display:flex;align-items:center;gap:6px}
.nav a.l{color:var(--ink);text-decoration:none;font-weight:600;font-size:14.5px;padding:8px 10px;border-radius:8px}
.nav a.l:hover{background:var(--surface-2)}
.iconbtn{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}

/* Tombol */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 20px;border-radius:10px;border:1px solid transparent;
  font:700 15.5px/1.2 var(--font);text-decoration:none;cursor:pointer}
.btn.primary{background:var(--brand);color:var(--brand-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{background:var(--surface-2)}
.btn:disabled{opacity:.6;cursor:default}
.btn.sm{min-height:40px;padding:8px 14px;font-size:14px}

/* Hero */
.hero{padding:28px 0 8px}
.hero h1{font-size:clamp(30px,6.4vw,52px);font-weight:800;letter-spacing:-.035em;max-width:17em}
.hero .sub{font-size:clamp(16px,2.2vw,19px);color:var(--ink-2);max-width:40em;margin:18px 0 24px}
.hero .cta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}

/* Demo brief ke prompt */
.demo{margin:36px 0 0;display:grid;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface)}
.demo .in{padding:20px;display:grid;gap:14px;align-content:start}
.demo .in h2{font-size:15px;font-weight:700}
.demo .in p.hint{font-size:13.5px;color:var(--ink-2);margin:-6px 0 0}
.demo label{display:block;font-weight:600;font-size:13.5px;margin-bottom:5px}
.demo input{width:100%;min-height:46px;padding:10px 12px;border-radius:9px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:500 15.5px var(--font)}
.demo input:focus{border-color:var(--brand);outline:2px solid var(--brand-soft)}
.demo .out{background:var(--code-bg);color:var(--code-ink);min-width:0}
.demo .out .bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;border-bottom:1px solid rgba(255,255,255,.08);font:500 12px var(--mono);color:var(--code-dim)}
.demo .out pre{margin:0;padding:16px;font:400 12.5px/1.75 var(--mono);white-space:pre-wrap;word-break:break-word;max-height:420px;overflow:auto}
.demo mark{background:var(--code-mark);color:#fff;border-radius:4px;padding:1px 3px}
.demo .dim{color:var(--code-dim)}
@media (min-width:800px){
  .demo{grid-template-columns:minmax(260px,5fr) 7fr}
  .demo .in{padding:24px;border-right:1px solid var(--line)}
}

/* Bagian */
section.s{padding:56px 0 0}
section.s>h2,.s-h{font-size:clamp(24px,3.6vw,34px);font-weight:800;letter-spacing:-.03em;max-width:20em}
section.s>.lead{color:var(--ink-2);max-width:38em;margin:12px 0 0}

/* Daftar tools */
.rows{margin:22px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.rows li{display:grid;gap:4px;padding:16px 0;border-bottom:1px solid var(--line)}
.rows b{font:700 17px var(--display);letter-spacing:-.015em}
.rows span{color:var(--ink-2)}
@media (min-width:720px){.rows li{grid-template-columns:240px 1fr;gap:24px;align-items:baseline}}

/* Langkah berurutan */
.steps{margin:22px 0 0;padding:0;list-style:none;counter-reset:st;display:grid;gap:22px}
.steps li{counter-increment:st;display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start}
.steps li::before{content:counter(st);display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--brand);color:var(--brand-ink);font:800 17px var(--display)}
.steps b{display:block;font:700 17px var(--display);letter-spacing:-.015em;margin:2px 0 4px}
.steps p{color:var(--ink-2);margin:0}
@media (min-width:860px){.steps.row{grid-template-columns:repeat(3,1fr);gap:32px}}

/* Chip niche */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none}
.chips li{padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-weight:600;font-size:14.5px}

/* Catatan penting (tanpa kartu seragam) */
.facts{margin:22px 0 0;display:grid;gap:0;border-top:1px solid var(--line)}
.facts>div{padding:18px 0;border-bottom:1px solid var(--line)}
.facts h3{font-size:17px;margin-bottom:6px}
.facts p{margin:0;color:var(--ink-2);max-width:46em}
@media (min-width:860px){.facts{grid-template-columns:repeat(3,1fr);column-gap:36px;border-top:0}.facts>div{border-top:1px solid var(--line)}}

/* FAQ */
.faq{margin:22px 0 0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;padding:16px 0;font-weight:700;font-size:16.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font:500 22px/1 var(--mono);color:var(--brand)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:0 0 16px;color:var(--ink-2);max-width:46em}

/* Daftar */
.signup{margin:56px 0 0;display:grid;gap:24px;border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:24px}
.signup h2{font-size:clamp(24px,3.6vw,32px);font-weight:800;letter-spacing:-.03em}
.signup .lead{color:var(--ink-2);margin:10px 0 0}
.signup form{display:grid;gap:14px;align-content:start}
.signup label.t{display:block;font-weight:700;font-size:14px;margin-bottom:5px}
.signup input[type=text],.signup input[type=email]{width:100%;min-height:48px;padding:10px 12px;border-radius:9px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:500 16px var(--font)}
.signup input:focus{border-color:var(--brand);outline:2px solid var(--brand-soft)}
.signup .check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.signup .check input{margin-top:4px;width:18px;height:18px;flex:none}
.status{min-height:1.3em;font-size:14px;font-weight:600}
.status.bad{color:var(--bad)}
.status.ok{color:var(--ok)}
.signup .done{display:grid;gap:12px;align-content:start}
@media (min-width:860px){.signup{grid-template-columns:1fr 1fr;gap:48px;padding:36px}}

/* Footer */
.foot{margin:64px 0 0;padding:24px 0 40px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;color:var(--ink-2);font-size:14px}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 18px}
.foot a{color:var(--ink-2)}
.foot a:hover{color:var(--brand)}

/* Dokumen (panduan dan privasi) */
.doc{max-width:720px;padding:8px 0 0}
.doc h1{font-size:clamp(28px,5vw,40px);font-weight:800;letter-spacing:-.03em;margin:10px 0 12px}
.doc h2{font-size:clamp(21px,3vw,26px);font-weight:800;letter-spacing:-.025em;margin:44px 0 12px;scroll-margin-top:16px}
.doc h3{font-size:17px;margin:26px 0 8px;scroll-margin-top:16px}
.doc .lede{font-size:17.5px;color:var(--ink-2)}
.doc ul,.doc ol{padding-left:22px;margin:0 0 1em}
.doc li{margin:0 0 .45em}
.doc li::marker{color:var(--brand)}
.doc ol.steps{padding-left:0;margin:18px 0 20px}
.doc .toc{margin:22px 0 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.doc .toc b{display:block;font:700 14px var(--display);margin-bottom:8px}
.doc .toc ol{margin:0;padding-left:20px;columns:1}
.doc .toc a{text-decoration:none;font-weight:600}
@media (min-width:640px){.doc .toc ol{columns:2;column-gap:28px}}
.callout{margin:18px 0;padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink)}
.callout.warn{background:var(--ai-soft);border-color:transparent}
.callout b{font-family:var(--display)}
.callout p:last-child{margin-bottom:0}
code,.k{font:500 .9em var(--mono);background:var(--surface-2);padding:2px 6px;border-radius:5px;word-break:break-word}
.qa dt{font-weight:700;margin-top:18px}
.qa dd{margin:4px 0 0;color:var(--ink-2)}

@media (max-width:420px){.nav a.l.opt{display:none}}