:root {
  color-scheme: light;
  --bg: #f2f1ec;
  --ink: #17150f;
  --ink-soft: #57564e;
  --muted: #8a897f;
  --muted-2: #a8a79d;
  --border: #e2e0d8;
  --accent: #2b34e0;
  --accent-dark: #1c23a8;
  --code-bg: #e6e4dc;
  --panel: #17150f;
  --panel-text: #f0eee6;
  --panel-muted: #7d7c72;
  --ok-bg: #eaf7ef;
  --ok-border: #bfe6cd;
  --ok-dot: #12986a;
  --ok-text: #0d7a54;
  --bad-bg: #fdeded;
  --bad-border: #f3c9c9;
  --bad-dot: #d64545;
  --bad-text: #b23434;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }
::selection { background: var(--accent); color: #fff; }

code {
  font-family: var(--font-mono);
  background: var(--code-bg);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 0.9em;
}

.wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 28px;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(242, 241, 236, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}
.logo-mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotate(45deg);
  flex: none;
}
.logo-dot {
  width: 9px;
  height: 9px;
  background: #e6a32b;
  border-radius: 2px;
}
.logo-word {
  font: 700 19px/1 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--ink);
}
.logo-tld { color: var(--muted); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 7px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
}
.nav-link:hover { color: var(--ink); }
.nav-link.is-active {
  color: var(--accent);
  font-weight: 600;
}

/* hub */
.screen { display: none; }
.screen.is-active { display: block; }

.hub-intro { padding: 76px 0 40px; }
.eyebrow {
  font: 500 13px/1 var(--font-mono);
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hub-h1 {
  font: 700 52px/1.04 var(--font-display);
  letter-spacing: -0.03em;
  margin: 0;
  max-width: 18ch;
}
.hub-lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 58ch;
  margin: 22px 0 0;
}
.hub-lede code { font-size: 16px; }

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-bottom: 80px;
}
.tool-card {
  text-align: left;
  background: #fff;
  border: 1px solid var(--border);
  border-top: 3px solid var(--ink);
  border-radius: 12px;
  padding: 26px 26px 24px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-top-color 0.12s ease;
  color: inherit;
}
.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -14px rgba(23, 21, 15, 0.28);
  border-top-color: var(--accent);
  color: inherit;
}
.tool-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.tool-tag {
  font: 500 12px/1 var(--font-mono);
  color: var(--muted);
}
.tool-arrow { color: var(--accent); font-size: 18px; }
.tool-title {
  font: 700 21px/1.15 var(--font-display);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 6px;
}
.tool-desc {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* tool screens */
.tool-screen { padding: 44px 0 80px; max-width: 720px; }
.tool-screen-wide { max-width: 820px; }
.back-link {
  display: inline-block;
  font: 500 13px/1 var(--font-mono);
  color: var(--muted);
  margin-bottom: 22px;
  cursor: pointer;
}
.back-link:hover { color: var(--ink-soft); }
.tool-h1 {
  font: 700 34px/1.1 var(--font-display);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.tool-h1-flush { margin-bottom: 0; }
.tool-lede {
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 30px;
  max-width: 52ch;
}
.tool-lede code { font-size: 14px; }

.field-label {
  display: block;
  font: 600 13px/1 var(--font-body);
  color: #3d3c35;
  margin-bottom: 9px;
}
.field-label-spaced { margin-top: 22px; }

.field-row { display: flex; gap: 10px; }
.field-row-wrap { align-items: flex-end; flex-wrap: wrap; }
.field-grow { flex: 1; min-width: 240px; }
.field-cost { width: 120px; }

.text-input {
  flex: 1;
  padding: 13px 15px;
  border: 1px solid #d9d7cf;
  border-radius: 9px;
  background: #fff;
  font-size: 15px;
  line-height: 1.4;
  color: var(--ink);
  width: 100%;
}
.text-input.full-width { width: 100%; margin-bottom: 18px; }
.mono { font-family: var(--font-mono); }
.select-input {
  width: 100%;
  padding: 13px 12px;
  border: 1px solid #d9d7cf;
  border-radius: 9px;
  background: #fff;
  font-size: 15px;
  color: var(--ink);
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 9px;
  padding: 0 20px;
  height: 47px;
  font: 600 14px/1 var(--font-body);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-dark { background: var(--ink); color: #fff; padding: 0 22px; }
.btn-dark:hover { background: var(--accent); }
.btn-secondary { background: #fff; color: var(--ink-soft); border: 1px solid #d9d7cf; }
.btn-secondary:hover { color: var(--ink); border-color: var(--muted); }
.btn-tall { height: 47px; }

.output-panel {
  position: relative;
  margin-top: 22px;
  background: var(--panel);
  border-radius: 12px;
  padding: 22px;
}
.output-panel-block { padding: 22px; }
.output-label {
  font: 500 11px/1 var(--font-mono);
  color: var(--panel-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.output-value {
  font: 400 15px/1.6 var(--font-mono);
  color: var(--panel-text);
  word-break: break-all;
  padding-right: 70px;
  min-height: 1.6em;
}
.output-block {
  margin: 0;
  font: 400 13px/1.85 var(--font-mono);
  color: var(--panel-text);
  white-space: pre;
  overflow-x: auto;
}
.btn-ghost-dark {
  background: rgba(255, 255, 255, 0.09);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 7px;
  padding: 7px 12px;
  font: 600 12px/1 var(--font-body);
  cursor: pointer;
  height: auto;
}
.btn-ghost-dark:hover { background: rgba(255, 255, 255, 0.16); }
.output-copy {
  position: absolute;
  top: 18px;
  right: 18px;
}
.output-copy-top { top: 16px; right: 16px; z-index: 2; }

.fine-print {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--muted);
  margin: 16px 2px 0;
}
.fine-print code { background: var(--code-bg); color: var(--ink-soft); }

.salts-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.verify-result {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-radius: 12px;
  padding: 18px 20px;
}
.verify-result.ok { background: var(--ok-bg); border: 1px solid var(--ok-border); }
.verify-result.bad { background: var(--bad-bg); border: 1px solid var(--bad-border); }
.verify-result.warn { background: var(--code-bg); border: 1px solid var(--border); }
.verify-icon {
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 700 18px/1 var(--font-body);
}
.verify-result.ok .verify-icon { background: var(--ok-dot); }
.verify-result.bad .verify-icon { background: var(--bad-dot); }
.verify-result.warn .verify-icon { background: var(--muted); }
.verify-title { font: 600 16px/1.2 var(--font-body); }
.verify-result.ok .verify-title { color: var(--ok-text); }
.verify-result.bad .verify-title { color: var(--bad-text); }
.verify-result.warn .verify-title { color: var(--ink-soft); }
.verify-sub {
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--ink-soft);
  margin-top: 3px;
}

/* footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 20px; }
.footer-inner {
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-note {
  font: 400 13px/1.4 var(--font-body);
  color: var(--muted);
}
.footer-domain {
  font: 500 12px/1 var(--font-mono);
  color: var(--muted-2);
}

@media (max-width: 640px) {
  .hub-h1 { font-size: 38px; }
  .card-grid { grid-template-columns: 1fr; }
  .main-nav { gap: 0; }
  .nav-link { padding: 8px 8px; font-size: 13px; }
}