:root {
  --paper: #f4f1ea;
  --paper-2: #ece8de;
  --ink: #1a1712;
  --ink-soft: #55503f;
  --line: #1a1712;
  --line-soft: #c9c3b4;
  --accent: #c8380d;
  --ok-bg: #e4ead8;
  --err-bg: #f0ddd6;
  --mono: 'Consolas', 'Cascadia Mono', 'Courier New', monospace;
  --serif: 'Georgia', 'Times New Roman', serif;
  --max: 960px;
}

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

::selection { background: var(--ink); color: var(--paper); }

body {
  font-family: var(--mono);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-size: 15px;
}

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
header {
  border-bottom: 2px solid var(--line);
  background: var(--paper);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 58px; gap: 16px;
}
.logo {
  font-family: var(--serif);
  font-size: 1.3rem; font-weight: 700; font-style: italic;
  text-decoration: none; letter-spacing: -0.01em;
}
.logo:hover { color: var(--ink); }
.logo .spark { color: var(--accent); font-style: normal; }
.nav-links { display: flex; gap: 18px; flex-wrap: wrap; }
.nav-links a {
  font-size: 0.78rem; text-decoration: none;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.nav-links a:hover { color: var(--accent); text-decoration: underline; }

/* Hero */
.hero {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--line-soft);
}
.hero .kicker {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--accent); margin-bottom: 14px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 700; line-height: 1.08; letter-spacing: -0.02em;
  max-width: 720px;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.hero p {
  color: var(--ink-soft); max-width: 560px;
  margin-top: 18px; font-size: 0.95rem;
}

/* Tool index — numbered ledger rows */
.grid { padding: 0 0 56px; }
.card {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 20px; align-items: baseline;
  padding: 26px 8px;
  border-bottom: 1px solid var(--line-soft);
  text-decoration: none;
  transition: background 0.1s;
}
.card:hover { background: var(--ink); color: var(--paper); text-decoration: none; }
.card:hover .icon, .card:hover p, .card:hover .cta { color: var(--paper); }
.card .icon {
  font-size: 0.85rem; color: var(--accent);
  letter-spacing: 0.05em;
}
.card h3 {
  font-family: var(--serif); font-size: 1.35rem; font-weight: 700;
  letter-spacing: -0.01em;
}
.card p { color: var(--ink-soft); font-size: 0.85rem; margin-top: 4px; max-width: 520px; }
.card .cta { font-size: 1.1rem; justify-self: end; }

/* Tool page */
.tool-wrap { padding: 48px 0 64px; flex: 1; }
.tool-head { margin-bottom: 36px; border-bottom: 1px solid var(--line-soft); padding-bottom: 28px; }
.tool-head .kicker {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--accent); margin-bottom: 10px;
}
.tool-head h1 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.1;
}
.tool-head p { color: var(--ink-soft); max-width: 580px; margin-top: 12px; font-size: 0.92rem; }

.tool-box {
  border: 2px solid var(--line);
  padding: 32px;
  max-width: 620px;
  background: var(--paper);
  box-shadow: 6px 6px 0 var(--line-soft);
}

label {
  display: block; font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  margin: 18px 0 6px; color: var(--ink);
}
label:first-child { margin-top: 0; }

input[type="text"], input[type="number"], input[type="date"], select {
  width: 100%; padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--ink); font-size: 1rem; font-family: var(--mono);
  outline: none;
}
input:focus, select:focus { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }

.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 160px; }

button.primary {
  width: 100%; margin-top: 26px; padding: 14px;
  background: var(--ink); color: var(--paper);
  border: 2px solid var(--ink); border-radius: 0;
  font-size: 0.85rem; font-weight: 700; font-family: var(--mono);
  text-transform: uppercase; letter-spacing: 0.12em;
  cursor: pointer;
}
button.primary:hover { background: var(--accent); border-color: var(--accent); }

.result {
  margin-top: 26px; padding: 20px;
  display: none; font-size: 0.9rem;
  border: 1px solid var(--line);
  word-break: break-word;
  background: var(--paper-2);
}
.result.show { display: block; }
.result.ok { background: var(--ok-bg); }
.result.err { background: var(--err-bg); }
.result.info { background: var(--paper-2); }
.result h4 {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 10px; padding-bottom: 8px;
  border-bottom: 1px dashed var(--ink-soft);
}
.result.ok h4 { color: #33591c; }
.result.err h4 { color: var(--accent); }
.result table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.result td { padding: 7px 4px; border-bottom: 1px dotted var(--line-soft); vertical-align: top; }
.result td:first-child { color: var(--ink-soft); white-space: nowrap; padding-right: 16px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.result td:last-child { text-align: right; }

.copy-btn {
  margin-top: 14px; padding: 9px 18px;
  background: transparent; border: 1px solid var(--line);
  border-radius: 0; color: var(--ink); cursor: pointer;
  font-size: 0.75rem; font-family: var(--mono);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.copy-btn:hover { background: var(--ink); color: var(--paper); }

/* SEO content */
.seo-content {
  max-width: 620px; margin: 56px 0 0;
  color: var(--ink-soft); font-size: 0.88rem;
}
.seo-content h2 {
  font-family: var(--serif); color: var(--ink);
  font-size: 1.25rem; margin: 28px 0 10px; letter-spacing: -0.01em;
}
.seo-content h2:first-child { margin-top: 0; }
.seo-content h3 { font-size: 0.95rem; color: var(--ink); margin: 18px 0 6px; letter-spacing: -0.005em; }
.seo-content h3:first-of-type { margin-top: 4px; }
.seo-content p { margin-bottom: 12px; }
.seo-content ul { margin: 0 0 12px 20px; }
.seo-content li { margin-bottom: 4px; }
.seo-content code { background: var(--paper-2); padding: 1px 5px; border: 1px solid var(--line-soft); }

/* Related tools */
.related { margin-top: 56px; border-top: 1px solid var(--line-soft); padding-top: 28px; }
.related-title {
  font-family: var(--serif); font-size: 1.25rem;
  letter-spacing: -0.01em; margin-bottom: 4px;
}
.related .grid { padding-bottom: 0; }
.related .card { padding: 20px 8px; }
.related .card h3 { font-size: 1.1rem; }

/* Ad slots */
.ad-slot {
  max-width: 620px; min-height: 90px;
  margin: 40px 0;
  border: 1px dashed var(--line-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--line-soft); font-size: 0.68rem; letter-spacing: 0.14em;
  text-transform: uppercase;
}
.center-ad { margin-left: auto; margin-right: auto; }

/* Range + checkboxes */
input[type="range"] { width: 100%; accent-color: var(--ink); margin-top: 8px; }
.checks { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 16px; }
.checks label {
  display: flex; align-items: center; gap: 7px; margin: 0;
  cursor: pointer; font-size: 0.72rem;
}
.checks input { accent-color: var(--ink); width: 15px; height: 15px; }

.password-display {
  margin-top: 24px; padding: 20px 16px;
  background: var(--ink); color: var(--paper);
  font-family: var(--mono);
  font-size: 1.1rem; text-align: center; word-break: break-all;
  min-height: 62px; display: flex; align-items: center; justify-content: center;
}

.strength-bar { height: 5px; background: var(--paper-2); border: 1px solid var(--line-soft); margin-top: 10px; overflow: hidden; }
.strength-bar div { height: 100%; width: 0; transition: width 0.3s, background 0.3s; }

/* Footer */
footer {
  border-top: 2px solid var(--line);
  padding: 24px 0; margin-top: auto;
  font-size: 0.72rem; color: var(--ink-soft);
}
footer .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer nav { display: flex; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--ink-soft); text-decoration: none; text-transform: uppercase; letter-spacing: 0.06em; }
footer a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .nav-links { gap: 10px; }
  .nav-links a { font-size: 0.68rem; }
  .nav { height: auto; padding: 12px 0; flex-direction: column; align-items: flex-start; }
  .tool-box { padding: 22px; box-shadow: 4px 4px 0 var(--line-soft); }
  .card { grid-template-columns: 44px 1fr; }
  .card .cta { display: none; }
}