/* BigDataBoy — design system (minimal, corporate) */
:root{
  --bg:#ffffff; --bg-subtle:#f7f8fa; --bg-muted:#f1f3f6;
  --line:#e4e7ec; --line-strong:#d0d5dd;
  --ink:#0c111d; --ink-2:#344054; --muted:#667085; --faint:#98a2b3;
  --accent:#1f4fd8; --accent-ink:#ffffff; --accent-soft:#eef3ff;
  --ok:#067647; --ok-soft:#ecfdf3; --warn:#b54708; --warn-soft:#fffaeb; --err:#b42318; --err-soft:#fef3f2;
  --code-bg:#0c111d; --code-ink:#e4e7ec;
  --r-sm:6px; --r:10px; --r-lg:14px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.05);
  --shadow:0 1px 3px rgba(16,24,40,.06),0 8px 24px -8px rgba(16,24,40,.08);
  --font:'Geist','Inter',system-ui,-apple-system,sans-serif;
  --mono:'Geist Mono','JetBrains Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;font-feature-settings:"ss01","cv11"}
a{color:inherit;text-decoration:none}
img,svg{display:block}
code,pre,kbd{font-family:var(--mono);font-size:.9em}
:not(pre)>code{background:var(--bg-muted);border:1px solid var(--line);padding:1px 6px;border-radius:5px;font-size:.84em;color:var(--ink-2)}
::selection{background:var(--accent-soft)}
.container{width:min(1120px,calc(100% - 48px));margin:0 auto}
.ico{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- Type ---------- */
h1,h2,h3,h4{font-weight:600;letter-spacing:-.022em;line-height:1.15;color:var(--ink)}
.display{font-size:clamp(2.4rem,5.2vw,3.9rem);letter-spacing:-.04em;line-height:1.04;font-weight:600}
.h2{font-size:clamp(1.7rem,3vw,2.3rem);letter-spacing:-.03em}
.h3{font-size:1.06rem}
.lead{font-size:1.125rem;color:var(--muted);line-height:1.65}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--r-sm);
  font:500 .9rem/1 var(--font);border:1px solid var(--line-strong);background:var(--bg);color:var(--ink);cursor:pointer;
  transition:background .15s,border-color .15s,box-shadow .15s,color .15s;white-space:nowrap;box-shadow:var(--shadow-sm)}
.btn:hover{background:var(--bg-subtle)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 4px var(--accent-soft)}
.btn-primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-primary:hover{background:#1d2939}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:#1a43b8}
.btn-ghost{border-color:transparent;background:none;box-shadow:none;color:var(--ink-2)}
.btn-ghost:hover{background:var(--bg-muted)}
.btn-lg{height:46px;padding:0 22px;font-size:.95rem}
.btn-sm{height:32px;padding:0 12px;font-size:.82rem}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---------- Nav ---------- */
.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid transparent;transition:border-color .2s}
.nav.scrolled{border-bottom-color:var(--line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.02em;font-size:1rem}
.brand-mark{width:26px;height:26px;border-radius:7px;background:var(--ink);display:grid;place-items:center}
.brand-mark svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:2}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a.link{padding:8px 12px;border-radius:var(--r-sm);color:var(--ink-2);font-size:.9rem;transition:background .15s}
.nav-links a.link:hover{background:var(--bg-muted)}
.nav-sep{width:1px;height:20px;background:var(--line);margin:0 10px}

/* ---------- Landing ---------- */
.hero{padding:96px 0 72px;border-bottom:1px solid var(--line);
  background:radial-gradient(900px 380px at 50% -120px,var(--accent-soft),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.hero .lead{margin:22px 0 32px;max-width:520px}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap}
.hero-meta{display:flex;gap:28px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.hero-meta div{font-size:.84rem;color:var(--muted)}
.hero-meta strong{display:block;font-size:1.25rem;color:var(--ink);font-weight:600;letter-spacing:-.02em}

.code-card{border-radius:var(--r-lg);background:var(--code-bg);color:var(--code-ink);box-shadow:0 24px 60px -20px rgba(16,24,40,.35);overflow:hidden;border:1px solid #1d2939}
.code-tabs{display:flex;gap:2px;padding:10px 12px 0;border-bottom:1px solid #1d2939}
.code-tabs button{background:none;border:none;color:#98a2b3;font:500 .8rem var(--font);padding:8px 12px;border-bottom:2px solid transparent;cursor:pointer}
.code-tabs button.active{color:#fff;border-bottom-color:#fff}
.code-card pre{padding:20px 22px;font-size:.8rem;line-height:1.75;overflow-x:auto;min-height:220px}
.t-c{color:#667085}.t-s{color:#a6e3a1}.t-k{color:#89b4fa}.t-n{color:#fab387}

section.block{padding:96px 0;border-bottom:1px solid var(--line)}
.section-head{max-width:620px;margin-bottom:48px}
.section-head .h2{margin:10px 0 12px}

.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.feature{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature .ico-wrap{width:36px;height:36px;border-radius:8px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-2);margin-bottom:18px;background:var(--bg)}
.feature h3{font-size:1rem;margin-bottom:6px}
.feature p{color:var(--muted);font-size:.92rem}

.ep-table{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.ep-row{display:grid;grid-template-columns:140px 1fr 1.3fr auto;gap:20px;align-items:center;padding:16px 22px;border-bottom:1px solid var(--line);transition:background .15s}
.ep-row:last-child{border-bottom:none}
.ep-row:hover{background:var(--bg-subtle)}
.ep-group{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.ep-name{font-weight:500}
.ep-path{font-family:var(--mono);font-size:.8rem;color:var(--ink-2)}
.verb{font-family:var(--mono);font-size:.7rem;font-weight:600;color:var(--accent);background:var(--accent-soft);padding:3px 7px;border-radius:4px;margin-right:8px}
.cost{font-size:.8rem;color:var(--muted)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.step-n{font-family:var(--mono);font-size:.8rem;color:var(--accent);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.step-n::after{content:"";flex:1;height:1px;background:var(--line)}
.step h3{font-size:1.05rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.93rem}

.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.plan{border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;background:var(--bg);display:flex;flex-direction:column;transition:border-color .15s,box-shadow .15s}
.plan:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.plan.featured{border-color:var(--ink);box-shadow:var(--shadow)}
.plan-top{display:flex;justify-content:space-between;align-items:center;min-height:24px;margin-bottom:14px}
.plan-name{font-size:.85rem;font-weight:500;color:var(--muted)}
.plan-price{font-size:2.1rem;font-weight:600;letter-spacing:-.035em}
.plan-price small{font-size:.9rem;color:var(--muted);font-weight:400;letter-spacing:0}
.plan-meta{color:var(--muted);font-size:.86rem;margin:4px 0 22px}
.plan .btn{margin-top:auto}

.cta-band{padding:80px 0;text-align:center}
.cta-band .h2{margin-bottom:12px}
.cta-band .hero-cta{justify-content:center;margin-top:28px}
footer.site{padding:32px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.86rem}
footer.site .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer.site nav{display:flex;gap:20px}
footer.site a:hover{color:var(--ink)}

/* ---------- Pills / tags ---------- */
.pill{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;color:var(--ink-2);border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:4px 12px 4px 8px;box-shadow:var(--shadow-sm)}
.pill .dot{width:6px;height:6px;border-radius:50%;background:#12b76a;box-shadow:0 0 0 3px #d1fadf}
.tag{display:inline-flex;align-items:center;font-size:.74rem;font-weight:500;padding:2px 8px;border-radius:999px;border:1px solid transparent}
.tag.ok{background:var(--ok-soft);color:var(--ok);border-color:#abefc6}
.tag.warn{background:var(--warn-soft);color:var(--warn);border-color:#fedf89}
.tag.err{background:var(--err-soft);color:var(--err);border-color:#fecdca}
.tag.neutral{background:var(--bg-muted);color:var(--ink-2);border-color:var(--line)}
.tag.accent{background:var(--accent-soft);color:var(--accent);border-color:#c7d7fe}

/* ---------- Forms ---------- */
.field{display:grid;gap:6px;margin-bottom:16px}
.field label{font-size:.85rem;font-weight:500;color:var(--ink-2)}
.input,input,select{width:100%;height:42px;padding:0 12px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--bg);color:var(--ink);font:inherit;font-size:.92rem;outline:none;transition:border-color .15s,box-shadow .15s;box-shadow:var(--shadow-sm)}
input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.alert{display:none;padding:10px 12px;border-radius:var(--r-sm);font-size:.86rem;margin-bottom:16px}
.alert.err{display:block;background:var(--err-soft);color:var(--err);border:1px solid #fecdca}
.alert.ok{display:block;background:var(--ok-soft);color:var(--ok);border:1px solid #abefc6}

/* ---------- Auth ---------- */
.auth{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-side{background:var(--bg-subtle);border-right:1px solid var(--line);padding:40px 56px;display:flex;flex-direction:column}
.auth-side blockquote{margin-top:auto;font-size:1.35rem;letter-spacing:-.02em;line-height:1.4;font-weight:500;max-width:440px}
.auth-side ul{list-style:none;margin-top:28px;display:grid;gap:12px;color:var(--ink-2);font-size:.93rem}
.auth-side li{display:flex;gap:10px;align-items:center}
.auth-side li .ico{color:var(--accent)}
.auth-main{display:grid;place-items:center;padding:40px 24px}
.auth-form{width:min(380px,100%)}
.auth-form h1{font-size:1.6rem;margin-bottom:6px}
.auth-switch{margin-top:22px;font-size:.88rem;color:var(--muted);text-align:center}
.auth-switch a{color:var(--accent);font-weight:500}

/* ---------- App shell ---------- */
.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh;background:var(--bg-subtle)}
.sidebar{background:var(--bg);border-right:1px solid var(--line);padding:18px 14px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.sidebar .brand{padding:4px 8px 18px}
.side-label{font-size:.72rem;font-weight:500;color:var(--faint);text-transform:uppercase;letter-spacing:.07em;padding:14px 10px 6px}
.side-nav{display:grid;gap:1px}
.side-nav a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--r-sm);color:var(--ink-2);font-size:.9rem;cursor:pointer;transition:background .12s,color .12s}
.side-nav a .ico{color:var(--faint)}
.side-nav a:hover{background:var(--bg-muted)}
.side-nav a.active{background:var(--bg-muted);color:var(--ink);font-weight:500}
.side-nav a.active .ico{color:var(--ink)}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding:14px 8px 0;display:flex;align-items:center;gap:10px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--bg-muted);border:1px solid var(--line);display:grid;place-items:center;font-size:.8rem;font-weight:600;color:var(--ink-2);flex:none}
.side-foot .who{min-width:0;font-size:.82rem;line-height:1.35}
.side-foot .who b{display:block;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-foot .who span{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}

.main{padding:36px clamp(20px,4vw,48px) 60px;max-width:1180px;width:100%}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.page-head h1{font-size:1.5rem}
.page-head p{color:var(--muted);font-size:.93rem;margin-top:4px}
.view{display:none}
.view.active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}}

.panel{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}
.panel-head h2{font-size:.98rem}
.panel-body{padding:20px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat{padding:20px}
.stat .label{font-size:.84rem;color:var(--muted);display:flex;align-items:center;gap:8px}
.stat .value{font-size:1.9rem;font-weight:600;letter-spacing:-.03em;margin-top:8px}
.stat .hint{font-size:.8rem;color:var(--faint);margin-top:2px}
.grid-2{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}

table{width:100%;border-collapse:collapse;font-size:.88rem}
th{text-align:left;font-weight:500;font-size:.78rem;color:var(--muted);padding:10px 20px;background:var(--bg-subtle);border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.04em}
td{padding:12px 20px;border-bottom:1px solid var(--line);color:var(--ink-2)}
tr:last-child td{border-bottom:none}
td.mono{font-family:var(--mono);font-size:.8rem}
.empty{padding:36px 20px;text-align:center;color:var(--muted);font-size:.9rem}
.table-wrap{overflow-x:auto}

.keybox{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--r-sm);background:var(--bg-subtle);border:1px solid var(--line);font-family:var(--mono);font-size:.84rem;word-break:break-all;color:var(--ink-2)}
.notice{display:flex;gap:10px;padding:12px 14px;border-radius:var(--r-sm);background:var(--warn-soft);border:1px solid #fedf89;color:var(--warn);font-size:.86rem;margin-top:14px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row>.grow{flex:1;min-width:200px}
pre.code{background:var(--code-bg);color:var(--code-ink);border-radius:var(--r);padding:16px 18px;font-size:.8rem;line-height:1.7;overflow:auto;max-height:520px;white-space:pre}
.pkgs{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.pkg{cursor:pointer}
.qr{display:flex;gap:28px;align-items:flex-start;flex-wrap:wrap}
.qr img{width:200px;height:200px;border-radius:var(--r);border:1px solid var(--line);padding:8px;background:#fff}
.spinner{width:14px;height:14px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite;display:inline-block;opacity:.7}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{position:fixed;bottom:24px;right:24px;padding:12px 16px;border-radius:var(--r);background:var(--ink);color:#fff;font-size:.88rem;box-shadow:0 12px 32px rgba(16,24,40,.25);transform:translateY(16px);opacity:0;transition:.25s;pointer-events:none;z-index:100}
.toast.show{transform:none;opacity:1}

/* ---------- Docs ---------- */
.docs{display:grid;grid-template-columns:220px 1fr;gap:56px;padding:48px 0 96px}
.docs-nav{position:sticky;top:88px;align-self:start;display:grid;gap:2px;font-size:.9rem}
.docs-nav .side-label{padding-left:10px}
.docs-nav a{padding:6px 10px;border-radius:var(--r-sm);color:var(--ink-2)}
.docs-nav a:hover{background:var(--bg-muted)}
.docs-content{max-width:760px;min-width:0}
.docs-content section{padding-bottom:48px;margin-bottom:48px;border-bottom:1px solid var(--line);scroll-margin-top:90px}
.docs-content h1{font-size:2.1rem;letter-spacing:-.035em;margin-bottom:12px}
.docs-content h2{font-size:1.35rem;margin-bottom:12px}
.docs-content h3{font-size:1rem;margin:24px 0 8px}
.docs-content p,.docs-content li{color:var(--ink-2)}
.docs-content p+p{margin-top:12px}
.docs-content ul{padding-left:20px;margin:10px 0}
.docs-content pre.code{margin:14px 0}
.docs-content table{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:14px 0;display:table}
.docs-content td,.docs-content th{padding:10px 14px}
.callout{display:flex;gap:12px;padding:14px 16px;border-radius:var(--r);background:var(--accent-soft);border:1px solid #c7d7fe;color:#1e3a8a;font-size:.92rem;margin:16px 0}
.callout .ico{color:var(--accent);margin-top:2px}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero-grid,.grid-2{grid-template-columns:1fr}
  .feature-grid,.steps{grid-template-columns:1fr}
  .ep-row{grid-template-columns:1fr;gap:4px}
  .auth{grid-template-columns:1fr}.auth-side{display:none}
  .docs{grid-template-columns:1fr}.docs-nav{display:none}
  .nav-links a.link,.nav-sep{display:none}
}
@media (max-width:820px){
  .app{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:6px;padding:12px}
  .sidebar .brand{padding:0 8px 0 0}
  .side-label,.side-foot{display:none}
  .side-nav{display:flex;flex-wrap:wrap}
}

/* ---------- Auth v2 ---------- */
.auth-side{background:var(--ink);color:#e4e7ec;border-right:none;position:relative;overflow:hidden}
.auth-side::before{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(ellipse at 30% 70%,#000 20%,transparent 70%)}
.auth-side>*{position:relative}
.auth-side .brand{color:#fff}
.auth-side .brand-mark{background:#fff}.auth-side .brand-mark svg{stroke:var(--ink)}
.auth-side blockquote{color:#fff;font-size:1.6rem;letter-spacing:-.03em;line-height:1.3}
.auth-side ul{color:#98a2b3}.auth-side li .ico{color:#fff}
.auth-snippet{margin-top:32px;border:1px solid #1d2939;border-radius:var(--r);background:#0a0e17;padding:14px 16px;font-family:var(--mono);font-size:.74rem;color:#98a2b3;line-height:1.7;max-width:440px}
.auth-snippet .ok{color:#a6e3a1}
.auth-foot{margin-top:40px;font-size:.8rem;color:#667085}
.auth-form h1{font-size:1.75rem;letter-spacing:-.03em}
.auth-main{position:relative}
.auth-top{position:absolute;top:28px;right:32px;font-size:.88rem;color:var(--muted)}
.auth-top a{color:var(--ink);font-weight:500;margin-left:6px}
.pw-wrap{position:relative}
.pw-wrap input{padding-right:44px}
.pw-toggle{position:absolute;right:4px;top:50%;transform:translateY(-50%);height:34px;width:36px;border:none;background:none;color:var(--faint);cursor:pointer;border-radius:5px;display:grid;place-items:center}
.pw-toggle:hover{color:var(--ink-2);background:var(--bg-muted)}
.label-row{display:flex;justify-content:space-between;align-items:baseline}
.label-row a{font-size:.82rem;color:var(--muted)}
.strength{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-top:8px}
.strength i{height:3px;border-radius:2px;background:var(--line);transition:background .2s}
.strength[data-s="1"] i:nth-child(-n+1){background:#f04438}
.strength[data-s="2"] i:nth-child(-n+2){background:#f79009}
.strength[data-s="3"] i:nth-child(-n+3){background:#2e90fa}
.strength[data-s="4"] i{background:#12b76a}
.field-hint{font-size:.8rem;color:var(--muted);margin-top:6px;display:block}
input.invalid{border-color:#fda29b}
input.invalid:focus{box-shadow:0 0 0 4px var(--err-soft)}
.legal{font-size:.78rem;color:var(--faint);text-align:center;margin-top:18px;line-height:1.5}