:root {
  --bg: #0b0d10;
  --bg-2: #0e1117;
  --surface: #141822;
  --surface-2: #1a1f2c;
  --border: #242a38;
  --border-hi: #313849;
  --text: #e8eaf0;
  --muted: #7d8599;
  --faint: #4d5468;
  --accent: #d98f4a;
  --accent-2: #e99c59;
  --accent-soft: rgba(217, 143, 74, 0.13);
  --ok: #4ade80;
  --warn: #facc15;
  --err: #f87171;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow: 0 1px 0 rgba(255,255,255,.03) inset, 0 8px 28px rgba(0,0,0,.4);
  --font: -apple-system,BlinkMacSystemFont,'SF Pro Display','Inter',system-ui,sans-serif;
  --mono: ui-monospace,'SF Mono',Menlo,'Cascadia Code',monospace;
}

*,*::before,*::after { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font); font-feature-settings:'ss01','cv11';
  letter-spacing: -.005em; -webkit-font-smoothing: antialiased; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

code { font-family: var(--mono); font-size: .92em; background: var(--bg-2);
  padding: 2px 6px; border-radius: 5px; border: 1px solid var(--border); }

/* ─────────── auth pages ─────────── */
body.auth {
  min-height: 100vh; display: grid; place-items: center;
  background:
    radial-gradient(1200px 600px at 30% -10%, rgba(217,143,74,.08), transparent 60%),
    radial-gradient(900px 500px at 80% 110%, rgba(96,165,250,.06), transparent 60%),
    var(--bg);
}
.auth-shell { width: 100%; max-width: 420px; padding: 24px; }
.auth-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px 32px 28px;
  box-shadow: var(--shadow);
}
.auth-card h1 { font-size: 22px; font-weight: 600; margin: 6px 0 4px; letter-spacing: -.015em; }
.auth-card .sub { color: var(--muted); margin: 0 0 24px; font-size: 14px; }
.auth-card form { display: flex; flex-direction: column; gap: 14px; }
.auth-card label { display: flex; flex-direction: column; gap: 6px;
  font-size: 12px; color: var(--muted); letter-spacing: .02em; text-transform: uppercase;
  font-weight: 500; }
.auth-card input {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 12px; border-radius: 8px; font: inherit; font-size: 14px; letter-spacing: 0;
  text-transform: none;
}
.auth-card input:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217,143,74,.15); }
.auth-card button.primary, button.primary {
  background: var(--accent); color: #1a0f05; border: 1px solid var(--accent);
  padding: 10px 14px; border-radius: 8px; font: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: background .15s; margin-top: 4px;
}
.auth-card button.primary:hover, button.primary:hover { background: var(--accent-2); }
.auth-card .muted, .muted { color: var(--muted); font-size: 13px; margin-top: 18px; }
.auth-card .hint { color: var(--faint); font-size: 11.5px; font-family: var(--mono); margin-top: 2px; }
.alert { background: rgba(248,113,113,.12); border: 1px solid rgba(248,113,113,.3);
  color: #fca5a5; padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.brand-dot { width: 14px; height: 14px; border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), #b06e3a); box-shadow: 0 2px 8px rgba(217,143,74,.4); }
.brand-name { font-weight: 600; letter-spacing: -.01em; font-size: 15px; }
.brand-name span { color: var(--muted); font-weight: 400; }

/* ─────────── app shell ─────────── */
body.app { background: var(--bg); }
.nav {
  position: sticky; top: 0; z-index: 10; background: rgba(11,13,16,.85);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
          backdrop-filter: blur(14px) saturate(1.3);
  border-bottom: 1px solid var(--border);
}
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 14px 32px;
  display: flex; align-items: center; gap: 32px; }
.nav .brand { margin: 0; }
.nav-links { display: flex; gap: 8px; margin-left: 16px; flex: 1; }
.nav-links a { padding: 6px 12px; border-radius: 7px; color: var(--muted);
  font-size: 13.5px; font-weight: 500; }
.nav-links a:hover { background: var(--surface); color: var(--text); }
.nav-links a.active { background: var(--surface); color: var(--text); }
.nav-user { display: flex; align-items: center; gap: 14px; font-size: 13px; }
.nav-user .email { color: var(--muted); }
.plan { font-size: 11px; padding: 3px 8px; border-radius: 999px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .05em; }
.plan-free { background: var(--surface); color: var(--muted); }
.plan-pro { background: rgba(96,165,250,.15); color: #93c5fd; }
.plan-enterprise { background: rgba(217,143,74,.15); color: var(--accent-2); }
form.inline { display: inline; }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 7px; font: inherit; font-size: 13px; cursor: pointer; }
button.ghost:hover { background: var(--surface); color: var(--text); }

.app-shell { max-width: 1200px; margin: 0 auto; padding: 40px 32px 80px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end;
  gap: 24px; margin-bottom: 32px; }
.page-head h1 { font-size: 28px; font-weight: 600; margin: 0 0 6px; letter-spacing: -.02em; }
.page-head .sub { color: var(--muted); margin: 0; font-size: 14px; }

/* ─────────── quota card ─────────── */
.quota-card { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 18px; min-width: 220px; }
.quota-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin-bottom: 6px; }
.quota-value { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums;
  letter-spacing: -.01em; }
.quota-value span { color: var(--muted); font-size: 14px; font-weight: 400; }
.bar { height: 4px; background: var(--bg-2); border-radius: 2px; margin-top: 10px; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px; transition: width .3s; }

/* ─────────── panels ─────────── */
.panel { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); margin-bottom: 24px; overflow: hidden;
  box-shadow: var(--shadow-sm); }
.panel-head { padding: 16px 22px; border-bottom: 1px solid var(--border); }
.panel-head h2 { margin: 0; font-size: 14px; font-weight: 600; letter-spacing: -.005em; }
.panel-body { padding: 22px; }
.empty { color: var(--muted); text-align: center; padding: 28px 0; font-size: 13px; }

/* ─────────── tables ─────────── */
.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th { text-align: left; font-weight: 500; font-size: 11.5px;
  text-transform: uppercase; letter-spacing: .06em; color: var(--muted);
  padding: 8px 12px; border-bottom: 1px solid var(--border); }
.tbl td { padding: 12px; border-bottom: 1px solid var(--border);
  font-variant-numeric: tabular-nums; }
.tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover td { background: var(--surface-2); }
.tbl .key { font-size: 12px; color: var(--accent-2); background: var(--bg-2); padding: 3px 8px; }

/* ─────────── row form ─────────── */
.row-form { display: flex; gap: 8px; margin-bottom: 16px; }
.row-form input { flex: 1; background: var(--bg-2); border: 1px solid var(--border);
  color: var(--text); padding: 9px 12px; border-radius: 7px; font: inherit; font-size: 13.5px; }
.row-form input:focus { outline: none; border-color: var(--accent); }

.inline-form { display: flex; gap: 6px; align-items: center; }
.inline-form select, .inline-form input { background: var(--bg-2); border: 1px solid var(--border);
  color: var(--text); padding: 5px 8px; border-radius: 5px; font: inherit; font-size: 12.5px; }
button.ghost-sm { background: var(--surface-2); color: var(--text); border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 5px; font: inherit; font-size: 12px; cursor: pointer; }
button.ghost-sm:hover { border-color: var(--accent); color: var(--accent-2); }
button.danger { background: transparent; color: var(--err); border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 6px; font: inherit; font-size: 12.5px; cursor: pointer; }
button.danger:hover { border-color: var(--err); background: rgba(248,113,113,.08); }

/* ─────────── usage grid ─────────── */
.usage-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.usage-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; }
.usage-node { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.usage-runs { color: var(--accent-2); font-size: 13px; font-variant-numeric: tabular-nums; }
.usage-toks { color: var(--muted); font-size: 12px; margin-top: 2px; }

/* ─────────── admin stats ─────────── */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 32px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 20px; }
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin-bottom: 8px; }
.stat-value { font-size: 28px; font-weight: 600; font-variant-numeric: tabular-nums;
  letter-spacing: -.02em; }

.role { font-size: 11px; padding: 2px 8px; border-radius: 4px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .05em; }
.role-user { background: var(--surface-2); color: var(--muted); }
.role-admin { background: rgba(217,143,74,.15); color: var(--accent-2); }

.pill-ok { font-size: 11px; padding: 2px 8px; border-radius: 4px; font-weight: 600;
  background: rgba(74,222,128,.15); color: var(--ok); }
.pill-err { font-size: 11px; padding: 2px 8px; border-radius: 4px; font-weight: 600;
  background: rgba(248,113,113,.15); color: var(--err); }

/* ─────────── pricing ─────────── */
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; margin-top: 16px; }
.price-card { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 24px; text-align: center;
  box-shadow: var(--shadow-sm); transition: border-color .18s, transform .18s; }
.price-card:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.price-current { border-color: var(--accent); background: linear-gradient(180deg, var(--surface) 0%, rgba(217,143,74,.05) 100%); }
.price-name { font-size: 13px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin-bottom: 12px; font-weight: 600; }
.price-amount { margin-bottom: 8px; }
.price-big { font-size: 48px; font-weight: 600; letter-spacing: -.03em;
  font-variant-numeric: tabular-nums; }
.price-period { font-size: 15px; color: var(--muted); margin-left: 2px; }
.price-quota { color: var(--accent-2); font-size: 13px; font-weight: 500;
  margin-bottom: 20px; font-variant-numeric: tabular-nums; }
.price-feat { list-style: none; padding: 0; margin: 0 0 24px; font-size: 13.5px;
  color: var(--muted); line-height: 2; }
.price-feat li::before { content: "✓ "; color: var(--ok); font-weight: 600; }
.price-card button, .price-card .btn-ghost { width: 100%; padding: 11px 14px;
  border-radius: 8px; font: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  display: block; text-align: center; text-decoration: none; }
.btn-ghost { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); }
.notice { margin-top: 32px; padding: 16px 20px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); font-size: 13.5px;
  color: var(--muted); line-height: 1.6; }
.notice strong { color: var(--text); }

/* ─────────── landing page ─────────── */
body.landing {
  background:
    radial-gradient(1400px 700px at 20% -10%, rgba(217,143,74,.10), transparent 60%),
    radial-gradient(1000px 600px at 90% 10%, rgba(96,165,250,.06), transparent 60%),
    radial-gradient(900px 500px at 50% 120%, rgba(244,114,182,.05), transparent 60%),
    var(--bg);
}

.lp-nav {
  position: sticky; top: 0; z-index: 20;
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
          backdrop-filter: blur(14px) saturate(1.3);
  background: rgba(11,13,16,.72); border-bottom: 1px solid rgba(39,44,58,.6);
}
.lp-nav-inner { max-width: 1240px; margin: 0 auto; padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between; }
.lp-nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.lp-nav-links a { color: var(--muted); font-weight: 500; transition: color .15s; }
.lp-nav-links a:hover { color: var(--text); }
.btn-mini { background: var(--accent); color: #1a0f05 !important;
  padding: 8px 14px; border-radius: 7px; font-weight: 600; }
.btn-mini:hover { background: var(--accent-2); color: #1a0f05 !important; }

/* hero */
.hero { max-width: 1240px; margin: 0 auto; padding: 80px 32px 60px;
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; padding: 48px 24px 40px; } }
.hero-tag { display: inline-flex; align-items: center; gap: 8px;
  background: rgba(217,143,74,.1); border: 1px solid rgba(217,143,74,.3);
  padding: 6px 14px; border-radius: 999px; color: var(--accent-2);
  font-size: 12.5px; font-weight: 500; margin-bottom: 24px; }
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 3px rgba(217,143,74,.2); }
.hero-title { font-size: clamp(40px, 6vw, 68px); line-height: 1.02; margin: 0 0 22px;
  letter-spacing: -.035em; font-weight: 600; }
.hero-title .grad {
  background: linear-gradient(135deg, var(--accent) 0%, #f472b6 50%, #60a5fa 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub { color: var(--muted); font-size: 18px; line-height: 1.55;
  max-width: 560px; margin: 0 0 36px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.btn-primary {
  background: var(--accent); color: #1a0f05 !important; padding: 14px 24px;
  border-radius: 10px; font-weight: 600; font-size: 15px;
  box-shadow: 0 6px 16px rgba(217,143,74,.3); transition: all .18s;
}
.btn-primary:hover { background: var(--accent-2); color: #1a0f05 !important;
  transform: translateY(-1px); box-shadow: 0 8px 22px rgba(217,143,74,.4); }
.btn-primary.btn-big { padding: 18px 32px; font-size: 17px; }
.btn-secondary { color: var(--text) !important; padding: 14px 22px;
  border-radius: 10px; border: 1px solid var(--border); font-weight: 500;
  font-size: 15px; transition: border-color .15s; }
.btn-secondary:hover { border-color: var(--border-hi); }
.hero-ports { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12px;
  color: var(--muted); font-family: var(--mono); }
.port-dot { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--surface); }
.port-dot .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--off); }
.port-dot .dot.ok { background: var(--ok); box-shadow: 0 0 0 2px rgba(74,222,128,.15); }

/* hero art — stylized node graph */
.hero-art { display: flex; justify-content: center; align-items: center; min-height: 360px; }
.node-preview { display: flex; flex-direction: column; gap: 24px; width: 100%; max-width: 400px; }
.np-node {
  background: var(--surface); border: 1px solid var(--border-hi);
  border-radius: 12px; padding: 14px 18px; font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 16px rgba(0,0,0,.3); position: relative;
}
.np-node.llm { border-left: 3px solid var(--accent); }
.np-node.tok { border-left: 3px solid #8b5cf6; margin-left: 36px; }
.np-node.mem { border-left: 3px solid var(--ok); }
.np-slot { font-size: 11px; font-weight: 400; color: var(--muted);
  margin-top: 6px; font-family: var(--mono); }
.np-wire { width: 2px; height: 18px; background: linear-gradient(180deg, var(--accent), #8b5cf6);
  margin-left: 24px; opacity: .6; }

/* logos strip */
.logos { max-width: 1240px; margin: 0 auto; padding: 24px 32px 0; }
.logos-row { display: flex; align-items: center; justify-content: center; gap: 18px;
  flex-wrap: wrap; color: var(--muted); font-size: 12.5px;
  padding: 22px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.logos-row code { background: transparent; border: 0; color: var(--muted); font-size: 12.5px;
  padding: 0; }

/* features */
.section-title { text-align: center; font-size: clamp(28px, 4vw, 40px); font-weight: 600;
  letter-spacing: -.025em; margin: 0 0 48px; }
.features { max-width: 1240px; margin: 0 auto; padding: 96px 32px; }
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.feat { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 24px; transition: border-color .18s, transform .18s; }
.feat:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.feat-icon { width: 44px; height: 44px; border-radius: 10px;
  display: grid; place-items: center; font-size: 22px; font-weight: 400;
  margin-bottom: 16px; }
.feat-llm   .feat-icon { background: rgba(217,143,74,.14); color: var(--accent); }
.feat-tok   .feat-icon { background: rgba(139,92,246,.14); color: #a78bfa; }
.feat-mem   .feat-icon { background: rgba(74,222,128,.14); color: var(--ok); }
.feat-agent .feat-icon { background: rgba(96,165,250,.14); color: #60a5fa; }
.feat-know  .feat-icon { background: rgba(244,114,182,.14); color: #f472b6; }
.feat-dash  .feat-icon { background: rgba(250,204,21,.14); color: var(--warn); }
.feat h3 { font-size: 18px; font-weight: 600; margin: 0 0 10px; letter-spacing: -.01em; }
.feat p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 0; }

/* how */
.how { max-width: 1240px; margin: 0 auto; padding: 0 32px 96px; }
.how-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.step { background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 24px; position: relative; }
.step-n { width: 28px; height: 28px; border-radius: 50%; background: var(--accent);
  color: #1a0f05; font-weight: 600; display: grid; place-items: center;
  font-size: 14px; font-variant-numeric: tabular-nums; margin-bottom: 16px; }
.step h3 { font-size: 17px; font-weight: 600; margin: 0 0 8px; letter-spacing: -.01em; }
.step p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 0; }

/* pricing preview */
.pricing-preview { max-width: 1240px; margin: 0 auto; padding: 0 32px 96px; }

/* final cta */
.final-cta { max-width: 1240px; margin: 0 auto; padding: 0 32px 120px; }
.final-inner { background: linear-gradient(135deg, var(--surface) 0%, rgba(217,143,74,.08) 100%);
  border: 1px solid var(--border-hi); border-radius: 20px;
  padding: 72px 32px; text-align: center; }
.final-inner h2 { font-size: clamp(24px, 3.5vw, 36px); margin: 0 0 28px;
  letter-spacing: -.02em; font-weight: 600; }

/* footer */
.lp-foot { border-top: 1px solid var(--border); padding: 32px 0; }
.lp-foot-inner { max-width: 1240px; margin: 0 auto; padding: 0 32px;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  flex-wrap: wrap; font-size: 13px; }
.lp-foot-links { display: flex; gap: 20px; }
.lp-foot-links a { color: var(--muted); }
.lp-foot-links a:hover { color: var(--text); }