:root {
  --paper: #FFFFFF;
  --panel: #F7F7F9;
  --ink: #0B0B0C;
  --muted: #6B6B70;
  --line: #E3E3E6;
  --accent: #E5147A;
  --accent-dim: #FCE4F0;
  --valid: #1E9E5A;
  --invalid: #D6402C;
  --body-text: #33343A;
  --radius: 4px;
  --mono: 'Fira Code', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: 'Source Sans 3', sans-serif;
}

html[data-theme="dark"] {
  --paper: #121214;
  --panel: #1A1A1D;
  --ink: #F2F2F0;
  --muted: #9A9A9F;
  --line: #2C2C30;
  --accent: #FF4FA0;
  --accent-dim: #4A1530;
  --valid: #34C77E;
  --invalid: #FF5C42;
  --body-text: #C7C7CC;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.wordmark { font-weight: 600; font-size: 1.05rem; color: var(--ink); display: inline-flex; align-items: center; gap: 2px; }
.cursor {
  display: inline-block; width: 9px; height: 1.1em; background: var(--accent);
  margin-left: 2px; animation: blink 1.1s steps(1) infinite; vertical-align: text-bottom;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

header.nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 32px; border-bottom: 1px solid var(--line);
}
.nav-links { display: flex; align-items: center; gap: 20px; font-size: .82rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.theme-toggle {
  font-family: var(--mono); font-size: .76rem; background: none; border: 1px solid var(--line);
  color: var(--muted); padding: 6px 12px; border-radius: var(--radius); cursor: pointer;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink); }

main { max-width: 1040px; margin: 0 auto; padding: 0 32px; }

/* Hero */
.hero { padding: 56px 0 40px; max-width: 720px; }
.hero .eyebrow { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin: 0 0 16px; }
.hero h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); font-weight: 600; line-height: 1.15; margin: 0 0 16px; }
.hero p.lead { font-family: var(--sans); color: var(--body-text); font-size: 1.1rem; margin: 0; max-width: 600px; }

/* Tool cards on the hub page */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; padding: 8px 0 64px; }
.tool-card {
  border: 1px solid var(--line); border-radius: 6px; background: var(--panel);
  padding: 0; overflow: hidden; transition: border-color .15s ease, transform .15s ease;
  display: block; color: var(--ink);
}
.tool-card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.tool-card .bar { display: flex; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.tool-card .dot { width: 9px; height: 9px; border-radius: 50%; border: 1.5px solid var(--muted); opacity: .5; }
.tool-card .glyph {
  font-size: 1.6rem; padding: 22px 16px 10px; color: var(--accent); font-weight: 600;
}
.tool-card h3 { margin: 0; padding: 0 16px; font-size: 1.05rem; }
.tool-card p { font-family: var(--sans); color: var(--muted); font-size: .88rem; margin: 6px 0 20px; padding: 0 16px; }

/* Terminal-style tool window */
.term-window { border: 1px solid var(--line); border-radius: 6px; background: var(--panel); margin: 8px 0 24px; overflow: hidden; }
.term-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--paper); }
.term-bar .dot { width: 10px; height: 10px; border-radius: 50%; border: 1.5px solid var(--muted); opacity: .55; }
.term-bar .term-title { font-size: .8rem; color: var(--muted); margin-left: 6px; }
.term-body { padding: 20px; }

.field-label { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-bottom: 8px; }
textarea, input[type="text"], input[type="number"] {
  font-family: var(--mono); font-size: .92rem; padding: 12px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--paper); color: var(--ink); width: 100%; resize: vertical;
}
textarea { min-height: 160px; line-height: 1.5; }
select {
  appearance: none; -webkit-appearance: none;
  font-family: var(--mono); font-size: .88rem; padding: 9px 30px 9px 12px;
  border: 1px solid var(--line); border-radius: var(--radius); background-color: var(--paper); color: var(--ink);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path d='M0 0l5 6 5-6z' fill='%236B6B70'/></svg>");
  background-repeat: no-repeat; background-position: right 12px center; cursor: pointer;
}
.field-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; margin-bottom: 16px; }
.check-row { display: flex; align-items: center; gap: 8px; font-size: .86rem; }
.check-row input { width: auto; }

button.primary {
  font-family: var(--mono); font-size: .84rem; font-weight: 600; padding: 11px 20px;
  background: var(--ink); color: var(--paper); border: 1px solid var(--ink); border-radius: var(--radius); cursor: pointer;
}
button.primary:hover { background: var(--accent); border-color: var(--accent); }
button.secondary {
  font-family: var(--mono); font-size: .84rem; padding: 11px 20px;
  background: var(--paper); color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius); cursor: pointer;
}
button.secondary:hover { border-color: var(--ink); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0; }

.status-row { display: flex; align-items: center; gap: 8px; font-size: .84rem; margin: 10px 0; min-height: 1.4em; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.status-dot.valid { background: var(--valid); }
.status-dot.invalid { background: var(--invalid); }
.status-text.valid { color: var(--valid); }
.status-text.invalid { color: var(--invalid); }

.output-box {
  font-family: var(--mono); font-size: .88rem; white-space: pre-wrap; word-break: break-word;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; min-height: 60px; line-height: 1.6;
}
.output-box mark { background: var(--accent-dim); color: var(--ink); border-radius: 2px; padding: 0 1px; }

.groups-list { font-size: .84rem; margin-top: 10px; }
.groups-list code { background: var(--panel); padding: 2px 6px; border-radius: 3px; }

.tool-note { font-family: var(--sans); font-size: .84rem; color: var(--muted); margin-top: 14px; }

footer { border-top: 1px solid var(--line); padding: 32px; margin-top: 20px; }
.network-links { max-width: 1040px; margin: 0 auto 16px; text-align: center; font-family: var(--mono); font-size: .78rem; color: var(--muted); }
.network-links a { color: var(--muted); text-decoration: underline; }
.network-links a:hover { color: var(--ink); }

/* Homepage "more tools" section */
.network-section { padding: 8px 0 56px; }
.network-section h2 { font-family: var(--mono); font-size: 1.3rem; margin: 0 0 20px; }
.network-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.network-card {
  display: block; border: 1px solid var(--line); border-radius: 6px; background: var(--panel);
  padding: 20px; color: var(--ink); transition: border-color .15s ease, transform .15s ease;
}
.network-card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.network-card .glyph-small { font-size: 1.3rem; color: var(--accent); margin: 0 0 10px; font-weight: 600; }
.network-card h3 { margin: 0 0 6px; font-size: 1rem; }
.network-card p { font-family: var(--sans); color: var(--muted); font-size: .86rem; margin: 0; }
footer .foot-inner { max-width: 1040px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
footer nav { display: flex; gap: 16px; font-size: .78rem; }
footer p { color: var(--muted); font-size: .78rem; margin: 0; }

/* Legal pages */
.legal { padding: 48px 0 80px; max-width: 720px; font-family: var(--sans); }
.legal h1 { font-family: var(--mono); font-size: 1.9rem; margin-bottom: 6px; }
.legal .updated { font-size: .78rem; color: var(--muted); margin-bottom: 36px; font-family: var(--mono); }
.legal h2 { font-family: var(--mono); font-size: 1.1rem; margin-top: 32px; }
.legal p, .legal li { color: var(--body-text); font-size: 1rem; }
.legal ul { padding-left: 20px; }

.faq-item { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq-item summary {
  cursor: pointer; font-family: var(--mono); font-weight: 600; font-size: .98rem;
  list-style: none; display: flex; justify-content: space-between; gap: 16px; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); flex-shrink: 0; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { font-family: var(--sans); margin: 10px 0 0; color: var(--body-text); }

.contact-card { max-width: 480px; padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; margin: 22px 0; }
.contact-card p.kind { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 0 0 6px; }
.contact-card p:not(.kind) { font-family: var(--sans); color: var(--body-text); }
.mail-btn { display: inline-flex; align-items: center; font-size: .84rem; padding: 10px 18px; background: var(--ink); color: var(--paper); border-radius: var(--radius); margin-top: 8px; }
.mail-btn:hover { background: var(--accent); text-decoration: none; }

@media (max-width: 760px) {
  header.nav { padding: 16px; }
  main { padding: 0 16px; }
  .term-body { padding: 16px; }
}