:root {
  --ink: #0b0e14;
  --ink-soft: #5a6478;
  --paper: #f5f6f9;
  --white: #ffffff;
  --navy: #0f1420;
  --navy-deep: #060811;
  --brand: #4f7fff;
  --brand-deep: #2f52c8;
  --accent: #19d3b5;
  --line: #e1e4ec;
  --line-dark: #232b3d;
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Roboto Mono", monospace;
  --radius: 8px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main { flex: 1; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 640px; }

/* wordmark */
.bmark { display: inline-flex; align-items: baseline; font-weight: 800; letter-spacing: -0.01em; color: inherit; }
.bmark-i { position: relative; display: inline-block; width: 0.34em; height: 1em; margin: 0 0.01em; }
.bmark-i-stem {
  position: absolute; left: 50%; bottom: 0.02em; transform: translateX(-50%);
  width: 0.15em; height: 0.56em; background: currentColor; border-radius: 0.05em;
}
.bmark-i-spark {
  position: absolute; left: 50%; top: -0.05em; transform: translateX(-50%) rotate(45deg);
  width: 0; height: 0;
  border-left: 0.09em solid transparent;
  border-right: 0.09em solid transparent;
  border-bottom: 0.17em solid var(--accent);
}

.nav { background: var(--navy-deep); border-bottom: 1px solid var(--line-dark); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding-block: 16px; }
.brand { font-size: 1.25rem; color: var(--white); text-decoration: none; }
.nav-links { display: flex; gap: 22px; }
.nav-links a { color: #9aa4ba; text-decoration: none; font-weight: 600; font-size: 0.92rem; }
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-logout { margin: 0; }
.nav-link-btn {
  background: none; border: none; padding: 0; margin: 0; cursor: pointer;
  font: inherit; color: #9aa4ba; font-weight: 600; font-size: 0.92rem;
}
.nav-link-btn:hover { color: var(--white); }

.hero {
  background:
    linear-gradient(180deg, var(--navy-deep) 0%, var(--navy) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.035) 0 1px, transparent 1px 64px);
  color: var(--white);
  padding: 96px 0 76px;
  text-align: center;
  border-bottom: 1px solid var(--line-dark);
}
.hero-short { padding: 64px 0 56px; }
.eyebrow {
  display: inline-block; text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.72rem;
  font-weight: 700; color: var(--accent); font-family: var(--mono);
  border: 1px solid rgba(25, 211, 181, 0.35); border-radius: 999px; padding: 4px 12px;
}
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.2rem); line-height: 1.15; margin: 20px 0 8px; letter-spacing: -0.02em; }
.wordmark-lg { font-size: clamp(2.4rem, 6.4vw, 3.8rem); margin: 20px 0 8px; letter-spacing: -0.02em; }
.tagline { font-size: 1.2rem; font-weight: 600; margin: 0 0 14px; color: #c7cde0; font-family: var(--mono); }
.lede { font-size: 1.05rem; color: #9aa4ba; max-width: 560px; margin: 0 auto 28px; }

.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.btn {
  display: inline-block; background: var(--accent); color: var(--navy-deep);
  padding: 12px 24px; border-radius: var(--radius); font-weight: 700; text-decoration: none;
  border: 1px solid var(--accent); font: inherit; cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--white); border: 1px solid var(--line-dark); }
.btn-ghost:hover { border-color: #434d63; background: rgba(255, 255, 255, 0.04); }

.demo {
  background: var(--navy-deep);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  max-width: 540px;
  margin: 0 auto;
  text-align: left;
  font-family: var(--mono);
  overflow: hidden;
}
.demo-titlebar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; border-bottom: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.02);
}
.demo-dot { width: 9px; height: 9px; border-radius: 50%; background: #3a4458; }
.demo-dot + .demo-dot { opacity: 0.7; }
.demo-filename { margin-left: 8px; font-size: 0.72rem; color: #5a6478; }
.demo-body { padding: 18px 20px 20px; }
.demo-row { display: flex; flex-direction: column; gap: 4px; }
.demo-label { font-size: 0.74rem; color: #5a6478; }
.demo-label::before { content: "$ "; color: var(--accent); }
.demo-value { font-size: 0.88rem; word-break: break-all; color: #c7cde0; }
.demo-arrow { font-size: 0.8rem; color: #434d63; margin: 12px 0; }
.demo-result { align-items: flex-start; }
.demo-label.demo-label-out::before { content: "> "; color: #434d63; }
.demo-short { color: var(--accent); font-weight: 700; }
.demo-badge {
  display: inline-block; margin-top: 8px; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.03em; color: #5a6478;
}

code { font-family: var(--mono); background: var(--paper); padding: 2px 6px; border-radius: 4px; font-size: 0.88em; }

.code { background: var(--navy-deep); border: 1px solid var(--line-dark); border-radius: var(--radius); font-family: var(--mono); overflow: hidden; margin: 18px 0; }
.code-body { padding: 18px 20px; overflow-x: auto; }
.code-body pre { margin: 0; white-space: pre; color: #c7cde0; font-size: 0.85rem; line-height: 1.55; }
.code-body pre code { background: none; padding: 0; border-radius: 0; font-size: inherit; color: inherit; }

.params { width: 100%; border-collapse: collapse; margin: 18px 0 0; font-size: 0.92rem; }
.params th, .params td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.params th { color: var(--ink-soft); font-weight: 700; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }

.status-list { margin: 16px 0 0; padding: 0; list-style: none; }
.status-list li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
.status-list code { margin-right: 6px; }

.section { padding: 72px 0; }
.section .eyebrow { color: var(--brand-deep); border-color: rgba(47, 82, 200, 0.25); }
.section-alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { margin: 14px 0 0; font-size: clamp(1.4rem, 2.6vw, 1.85rem); letter-spacing: -0.01em; }
.text-link { color: var(--brand-deep); font-weight: 700; text-decoration: none; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1px; margin-top: 36px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.step { padding: 26px 24px; background: var(--white); }
.step-num {
  display: inline-block; font-family: var(--mono); font-weight: 700; font-size: 0.85rem;
  color: var(--brand); margin-bottom: 16px;
}
.step-num::before { content: "0"; }
.step h3 { margin: 0 0 8px; font-size: 1.02rem; }
.step p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1px; margin-top: 36px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.feature { background: var(--paper); padding: 24px 22px; }
.feature h3 { margin: 0 0 8px; font-size: 1rem; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

.cta { background: var(--navy-deep); color: var(--white); padding: 64px 0; text-align: center; border-top: 1px solid var(--line-dark); }
.cta h2 { margin: 0 0 10px; letter-spacing: -0.01em; }
.cta p { color: #9aa4ba; margin: 0 0 28px; }

.form label { display: block; font-weight: 700; font-size: 0.92rem; margin: 18px 0 6px; }
.form input, .form textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
  font: inherit; background: var(--white); color: var(--ink);
}
.form textarea { min-height: 140px; resize: vertical; }
.form .btn { margin-top: 22px; }
.hp { position: absolute; left: -9999px; }
.notice { padding: 14px 18px; border-radius: 8px; margin-bottom: 18px; font-weight: 600; }
.notice.ok { background: #e6f4ee; color: #1d5c3c; }
.notice.err { background: #fbeaea; color: #7a2222; }

.footer { background: var(--white); border-top: 1px solid var(--line); padding-block: 26px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-brand { display: flex; align-items: baseline; gap: 12px; color: var(--ink); }
.footer-tag { font-size: 0.85rem; color: var(--ink-soft); font-weight: 600; font-family: var(--mono); }
.footer a { color: var(--ink-soft); font-weight: 700; text-decoration: none; }
.footer a:hover { color: var(--brand-deep); }