/* ===== Tokens ===== */
:root {
  --ink: #161A1E;
  --paper: #FAFAF8;
  --steel: #5B6570;
  --steel-light: #DADFE2;
  --accent: #157A73;
  --accent-dark: #0F5D57;
  --warn: #C24A2B;
  --tile-bg: #FFFFFF;
  --radius: 3px;
  --max-w: 1040px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.5;
}

a { color: var(--accent-dark); }
a:focus, button:focus, input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  border-bottom: 1px solid var(--steel-light);
  background: var(--paper);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand img {
  border-radius: 6px;
  display: block;
}
.brand span { color: var(--accent); }
.site-nav a {
  text-decoration: none;
  color: var(--steel);
  font-size: 0.9rem;
  font-weight: 500;
  margin-left: 24px;
}
.site-nav a:hover { color: var(--ink); }

/* ===== Hero ===== */
.hero {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--steel-light);
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 14ch;
  margin: 0 0 16px;
}
.hero p {
  color: var(--steel);
  font-size: 1.1rem;
  max-width: 52ch;
  margin: 0;
}

/* ===== Tool grid ===== */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--steel-light);
  border: 1px solid var(--steel-light);
  margin: 48px 0 80px;
}
@media (max-width: 720px) {
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .tool-grid { grid-template-columns: 1fr; }
}

.tool-tile {
  background: var(--tile-bg);
  padding: 28px 24px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background 0.15s ease;
}
.tool-tile:hover { background: #F1F5F4; }
.tool-tile .tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tool-tile h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}
.tool-tile p {
  margin: 0;
  color: var(--steel);
  font-size: 0.9rem;
}

/* ===== Tool page ===== */
.tool-page { padding: 48px 0 96px; }
.tool-page .breadcrumb {
  font-size: 0.85rem;
  color: var(--steel);
  margin-bottom: 24px;
}
.tool-page .breadcrumb a { color: var(--steel); text-decoration: none; }
.tool-page .breadcrumb a:hover { color: var(--accent-dark); }

.tool-page h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.tool-page > .wrap > p.lead {
  color: var(--steel);
  max-width: 60ch;
  margin: 0 0 40px;
}

.panel {
  background: var(--tile-bg);
  border: 1px solid var(--steel-light);
  padding: 32px;
  max-width: 640px;
}

.dropzone {
  border: 1.5px dashed var(--steel-light);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  color: var(--steel);
  font-size: 0.95rem;
}
.dropzone:hover { border-color: var(--accent); color: var(--ink); }
.dropzone.drag-over { border-color: var(--accent); background: #F1F5F4; }

label.field-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 6px;
}

input[type="text"], input[type="number"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--steel-light);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  color: var(--ink);
}
textarea { resize: vertical; min-height: 120px; }

.btn {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  border: none;
  padding: 12px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--accent-dark); }
.btn.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--steel-light);
}
.btn.secondary:hover { border-color: var(--ink); background: transparent; }

.field-row { margin-bottom: 20px; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.result-box {
  margin-top: 24px;
  padding: 16px 20px;
  background: #F1F5F4;
  border: 1px solid var(--steel-light);
  font-size: 0.95rem;
}
.result-box.hidden { display: none; }
.hidden { display: none !important; }

.stats-row {
  display: flex;
  gap: 32px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.stat { }
.stat .num { font-size: 1.6rem; font-weight: 700; display: block; }
.stat .label { font-size: 0.8rem; color: var(--steel); }

canvas { max-width: 100%; }

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--steel-light);
  padding: 32px 0;
  color: var(--steel);
  font-size: 0.85rem;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer a { color: var(--steel); }

/* ===== Simple pages (privacy/about/contact) ===== */
.simple-page { padding: 56px 0 96px; }
.simple-page h1 { font-size: 2rem; margin-bottom: 24px; }
.simple-page h2 { font-size: 1.2rem; margin-top: 32px; }
.simple-page p, .simple-page li { color: var(--steel); line-height: 1.7; }
.simple-page .wrap { max-width: 700px; }

/* ===== Ad slots ===== */
.ad-slot-wrap {
  display: none; /* only shown by js/ads.js once an ad is really being rendered */
  margin: 36px auto;
  text-align: center;
}
.ad-slot-wrap.is-live { display: block; }
.ad-slot__label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 8px;
}
.ad-slot {
  margin: 0 auto;
  max-width: 100%;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ad-slot--leaderboard { width: 728px; height: 90px; }
.ad-slot--rectangle { width: 336px; height: 280px; }
@media (max-width: 600px) {
  .ad-slot--leaderboard { width: 320px; height: 50px; }
  .ad-slot--rectangle { width: 300px; height: 250px; }
}

/* ===== Page content sections (tool guides, FAQ) ===== */
.content-section { max-width: 700px; margin: 40px auto 0; }
.content-section h2 { font-size: 1.25rem; margin: 28px 0 10px; }
.content-section h3 { font-size: 1rem; margin: 18px 0 4px; }
.content-section p, .content-section li { color: var(--steel); line-height: 1.7; }
.content-section ol, .content-section ul { padding-left: 22px; }
.simple-page h2 { margin-top: 28px; }