/* ─────────────────────────────────────────────────
   textrepeat.net — design system
   Typography: Fraunces (serif headlines) + Geist (sans) + JetBrains Mono (mono)
   Accent: warm violet
───────────────────────────────────────────────── */

:root {
  /* Palette: paper-warm cream + ink + violet accent */
  --paper: #faf7f2;
  --paper-soft: #f5f0e7;
  --card: #ffffff;
  --ink: #14130f;
  --ink-muted: #6b6759;
  --ink-soft: #a09b8e;
  --line: #e8e2d5;
  --line-soft: #f0ebde;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-soft: #f3edff;
  --success: #2d8a4f;
  --warn: #d97706;
  --danger: #c1272d;
}
[data-theme="dark"] {
  --paper: #14130f;
  --paper-soft: #1c1a16;
  --card: #1f1e1a;
  --ink: #faf7f2;
  --ink-muted: #a59f93;
  --ink-soft: #6b6759;
  --line: #2a2823;
  --line-soft: #1f1e1a;
  --accent: #a78bfa;
  --accent-hover: #c4b5fd;
  --accent-soft: rgba(167, 139, 250, 0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

/* Headlines: Fraunces */
h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0;
}
h1 { font-size: clamp(36px, 5vw, 56px); }
h2 { font-size: clamp(28px, 3.5vw, 40px); }
h3 { font-size: clamp(22px, 2.6vw, 28px); }
h4 { font-size: 18px; letter-spacing: 0; }
em {
  font-style: italic;
  color: var(--accent);
  font-family: 'Fraunces', Georgia, serif;
}

p { margin: 0 0 16px; color: var(--ink); }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}
a:hover { border-bottom-color: var(--accent); }

code, pre, .mono {
  font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  font-size: 0.92em;
}
code {
  background: var(--paper-soft);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line);
}
[data-theme="dark"] code { background: var(--card); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

/* ─────────── NAVIGATION ─────────── */
.nav-bar {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 100;
  transition: background 0.2s, border-color 0.2s;
}
.nav-inner {
  max-width: 1180px; margin: 0 auto; padding: 16px 28px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Fraunces', serif;
  font-size: 20px;
  color: var(--ink);
  border-bottom: none;
  font-weight: 500;
}
.nav-brand:hover { border-bottom: none; }
.nav-brand-mark {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 12px;
}
.nav-brand-tld {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-left: 2px;
}
.nav-links {
  display: flex; align-items: center; gap: 24px;
  list-style: none; margin: 0; padding: 0;
}
.nav-links a {
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  border-bottom: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--accent); }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: 100px;
  font-family: 'Geist', sans-serif;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.btn:hover { background: var(--ink); color: var(--paper); border-bottom-color: var(--ink); }
.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #ffffff;
}
/* Specificity override: when btn-primary is inside .nav-links a, ensure white text wins over .nav-links a's color rule */
.nav-links a.btn-primary,
.nav-links a.btn-primary:hover {
  color: #ffffff;
  font-weight: 700;
}
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--paper-soft); color: var(--ink); border-color: var(--ink); }

.theme-toggle {
  width: 38px; height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink);
  font-size: 16px;
  transition: all 0.2s;
}
.theme-toggle:hover { background: var(--line-soft); border-color: var(--ink); }

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  color: var(--ink);
}
.mobile-nav {
  display: none;
  position: fixed; top: 0; right: 0; width: 280px;
  height: 100vh;
  background: var(--card);
  border-left: 1px solid var(--line);
  padding: 24px; z-index: 200;
  flex-direction: column; gap: 16px;
}
.mobile-nav.open { display: flex; }
.mobile-nav ul { list-style: none; padding: 0; margin: 0; }
.mobile-nav li { padding: 12px 0; border-bottom: 1px solid var(--line); }
.mobile-nav a { color: var(--ink); font-size: 16px; border-bottom: none; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-nav-toggle { display: inline-flex; }
}

/* ─────────── HERO ─────────── */
.hero {
  padding: 80px 0 56px;
}
.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 20px;
  font-weight: 600;
}
.hero h1 {
  max-width: 18ch;
  margin-bottom: 24px;
}
.hero p {
  max-width: 56ch;
  font-size: 18px;
  color: var(--ink-muted);
  line-height: 1.6;
}
.hero-features {
  display: flex; flex-wrap: wrap; gap: 24px;
  margin-top: 32px;
}
.hero-feature {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  display: flex; align-items: center; gap: 6px;
}
.hero-feature::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
}

/* ─────────── CALCULATOR / TOOL SHELL ─────────── */
.tool-section {
  padding: 32px 0 80px;
}
.tool-grid-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 32px;
}
@media (max-width: 900px) {
  .tool-grid-layout { grid-template-columns: 1fr; }
}
.tool-shell {
  background: var(--card);
  border-radius: 14px;
  padding: 36px;
  border: 1px solid var(--line);
}
.tool-header {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.tool-title {
  font-family: 'Fraunces', serif;
  font-size: 24px;
  font-weight: 400;
  margin: 0;
  color: var(--ink);
}

.field {
  margin-bottom: 24px;
}
.field-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
  font-weight: 700;
}
.field-hint {
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 6px;
  font-family: 'JetBrains Mono', monospace;
}

textarea.tool-input {
  width: 100%;
  min-height: 140px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 15px;
  line-height: 1.6;
  padding: 14px 16px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink);
  resize: vertical;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
textarea.tool-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.18);
}

input.tool-input-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 500;
  width: 130px;
  padding: 8px 14px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  text-align: center;
  -moz-appearance: textfield;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
input.tool-input-number:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}
input.tool-input-number::-webkit-outer-spin-button,
input.tool-input-number::-webkit-inner-spin-button {
  -webkit-appearance: none; margin: 0;
}

input.tool-input-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  padding: 10px 14px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--card);
  color: var(--ink);
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  min-width: 200px;
}
input.tool-input-text:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

/* Separator option pills */
.option-row {
  display: flex; flex-wrap: wrap; gap: 8px;
  align-items: center;
}
.option-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 100px;
  border: 2px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
}
.option-chip:hover { border-color: var(--ink); }
.option-chip.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* Quick preset buttons */
.preset-row {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 8px;
}
.preset-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink-muted);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.15s;
}
.preset-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

/* Live counts */
.input-meta {
  display: flex; gap: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.input-meta strong { color: var(--ink); font-weight: 600; }

/* Action row (Generate, Clear, Try sample) */
.action-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 8px;
}

/* ─────────── RESULT PANEL ─────────── */
.result-panel {
  background: #1a1a1a;
  color: #faf7f2;
  border-radius: 14px;
  padding: 28px;
  position: sticky;
  top: 88px;
  display: flex; flex-direction: column;
  min-height: 380px;
}
.result-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.result-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #faf7f2;
  font-weight: 700;
}
.result-count-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 100px;
  background: rgba(167, 139, 250, 0.25);
  color: #d4c5ff;
}
.result-output {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 1.5;
  color: #faf7f2;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  max-height: 360px;
  min-height: 180px;
}
.result-output:empty::before {
  content: 'Output will appear here';
  color: rgba(245, 247, 242, 0.4);
  font-style: italic;
}
.result-meta {
  display: flex; flex-wrap: wrap; gap: 14px;
  margin-top: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(245, 247, 242, 0.75);
  font-weight: 600;
}
.result-meta strong { color: #faf7f2; font-weight: 700; }
.result-actions {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 18px;
}
.btn-on-dark {
  background: transparent;
  color: #faf7f2;
  border: 1px solid rgba(245, 247, 242, 0.25);
  padding: 9px 16px;
  border-radius: 100px;
  font-family: 'Geist', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-on-dark:hover {
  background: rgba(245, 247, 242, 0.1);
  border-color: #faf7f2;
  color: #faf7f2;
}

/* ─────────── PROSE / BODY ─────────── */
.prose {
  max-width: 70ch;
}
.prose h2 { margin-top: 48px; margin-bottom: 16px; }
.prose h3 { margin-top: 32px; margin-bottom: 12px; }
.prose p, .prose li {
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
}
.prose ul, .prose ol {
  padding-left: 24px;
  margin: 0 0 16px;
}
.prose li { margin-bottom: 8px; }
.prose code {
  font-size: 14px;
}

/* ─────────── BREADCRUMB ─────────── */
.breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  padding: 16px 0;
}
.breadcrumb a {
  color: var(--ink);
  border-bottom: none;
  font-weight: 700;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { margin: 0 8px; color: var(--ink-soft); }

/* ─────────── SECTIONS ─────────── */
.section { padding: 64px 0; }
.section-tight { padding: 32px 0; }
.section-header { margin-bottom: 40px; max-width: 60ch; }
.section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
  font-weight: 600;
}
.section-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(28px, 3.5vw, 40px);
  margin-bottom: 12px;
}

/* ─────────── TOOL CARDS GRID ─────────── */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: var(--ink);
  transition: all 0.2s;
  display: flex; flex-direction: column; gap: 10px;
  border-bottom: 1px solid var(--line);
}
.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.08);
  border-bottom-color: var(--accent);
}
.tool-icon {
  font-size: 24px;
  margin-bottom: 4px;
}
.tool-card h4 {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 400;
  margin: 0;
  color: var(--ink);
}
.tool-card p {
  font-size: 14px;
  color: var(--ink-muted);
  margin: 0;
  line-height: 1.55;
}

/* ─────────── FAQ ─────────── */
.faq-list {
  max-width: 70ch;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 20px 0;
  font-family: 'Geist', sans-serif;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-question:hover { color: var(--accent); }
.faq-icon {
  display: inline-block;
  width: 12px; height: 12px;
  position: relative;
  transition: transform 0.2s;
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::before { width: 12px; height: 1.5px; }
.faq-icon::after { width: 1.5px; height: 12px; transition: transform 0.2s; }
.faq-question.open .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s;
}
.faq-answer.open { max-height: 500px; padding-bottom: 20px; }
.faq-answer p { color: var(--ink-muted); }

/* ─────────── FOOTER ─────────── */
.footer {
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin: 0 0 16px;
  font-weight: 700;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: var(--ink);
  font-size: 14px;
  border-bottom: none;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

/* ─────────── TOAST ─────────── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--paper);
  padding: 12px 24px; border-radius: 100px;
  font-size: 14px;
  z-index: 1000;
  opacity: 0; transition: opacity 0.2s;
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* ─────────── Tool directory cards (UUIDCore-style) ─────────── */
.directory-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: var(--ink);
  transition: all 0.2s;
  display: flex; flex-direction: column;
  border-bottom: 1px solid var(--line);
}
.directory-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.08);
  border-bottom-color: var(--accent);
}
.directory-card-head {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.directory-card-icon {
  font-size: 26px;
  line-height: 1;
}
.directory-card-cat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 100px;
  font-weight: 600;
}
.directory-card h4 {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 400;
  margin: 0 0 8px;
  color: var(--ink);
}
.directory-card-desc {
  font-size: 14px;
  color: var(--ink-muted);
  margin: 0 0 16px;
  line-height: 1.55;
  flex: 1;
}
.directory-card-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 14px;
}
.directory-card-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 100px;
  background: var(--paper-soft);
  color: var(--ink-muted);
  border: 1px solid var(--line);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.directory-card-domain {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  display: flex; align-items: center; gap: 6px;
}
.directory-card-domain::before { content: '🌐'; font-size: 11px; }
.directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

/* ─────────── Adsterra banner ─────────── */
.ad-banner {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  display: flex; justify-content: center; align-items: center;
}
.ad-banner-inner { display: flex; justify-content: center; align-items: center; }
.ad-banner-inner.desktop { display: flex; }
.ad-banner-inner.mobile { display: none; }
@media (max-width: 767px) {
  .ad-banner-inner.desktop { display: none; }
  .ad-banner-inner.mobile { display: flex; }
}
.ad-banner:has(.ad-banner-inner.desktop:empty):has(.ad-banner-inner.mobile:empty) { display: none; }

/* ─────────── Misc ─────────── */
.warn-box {
  background: rgba(217, 119, 6, 0.08);
  border: 1px solid rgba(217, 119, 6, 0.3);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--ink);
  margin-top: 12px;
  display: flex; gap: 10px;
  align-items: flex-start;
}
.warn-box::before {
  content: '⚠';
  color: var(--warn);
  font-size: 16px;
  flex-shrink: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 14px;
}
th, td {
  border: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
}
th {
  background: var(--paper-soft);
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

/* ──────────────────────────────────────────────────────────────────────────
   MOBILE POLISH — applied at <= 640px (phones in portrait)
   ────────────────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  /* Trim ambient body padding */
  body { font-size: 16px; }

  /* Tighten content padding & section spacing */
  .wrap { padding-left: 18px; padding-right: 18px; }
  .section { padding: 36px 0; }
  .section-tight { padding: 20px 0; }
  .section-header { margin-bottom: 24px; }
  .section-title { font-size: 28px; line-height: 1.1; }

  /* HERO — shrink vertical padding and font sizes for phones */
  .hero { padding: 28px 0 32px; }
  .hero h1 { font-size: clamp(32px, 9vw, 44px); line-height: 1.05; margin-bottom: 16px; }
  .hero p { font-size: 16px; line-height: 1.55; }
  .hero-eyebrow { margin-bottom: 14px; font-size: 11px; }
  .hero-features { gap: 10px 14px; margin-top: 22px; }
  .hero-feature { font-size: 11px; }

  /* BREADCRUMB — tighten on mobile */
  .breadcrumb { padding: 10px 0 6px; font-size: 11px; }

  /* TOOL SHELL — reduce padding, stack header */
  .tool-section { padding: 16px 0 56px; }
  .tool-shell { padding: 22px 18px; border-radius: 12px; }
  .tool-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-bottom: 16px;
    margin-bottom: 22px;
  }
  .tool-header .tool-actions, .tool-header > div:last-child {
    display: flex; flex-wrap: wrap; gap: 8px;
    width: 100%;
  }
  .tool-title { font-size: 22px; }

  /* INPUT/OUTPUT — improve tap-friendliness */
  textarea.tool-input { min-height: 110px; font-size: 16px; padding: 14px; }
  input.tool-input-text { font-size: 16px !important; padding: 12px 14px !important; }
  input.tool-input-number { font-size: 18px !important; padding: 12px 14px !important; }

  /* Preset chips — bigger tap targets, snug spacing */
  .option-chip, .preset-chip {
    min-height: 36px;
    padding: 8px 14px;
    font-size: 13px;
  }

  /* Action buttons — ensure 40px+ height for finger-friendliness */
  .btn { padding: 11px 18px; min-height: 40px; }

  /* Mobile-nav — ensure full overlay works */
  .mobile-nav.open { padding: 24px 22px 28px; }
  .mobile-nav ul li { padding: 6px 0; }
  .mobile-nav ul li a { font-size: 17px; padding: 8px 0; display: block; }

  /* RESULT PANEL — reduce padding */
  .result-panel { padding: 22px 18px; }
  .result-meta { font-size: 11px; gap: 10px; }

  /* Cards (tool-grid + directory-grid) — single-column on phones */
  .tool-grid, .directory-grid { grid-template-columns: 1fr !important; gap: 14px; }
  .tool-card, .directory-card { padding: 18px; }
  .tool-card h4, .directory-card h4 { font-size: 18px; }

  /* FAQ items — tap-friendly */
  .faq-question { padding: 16px 14px; font-size: 15px; }

  /* Footer — single column stack */
  .footer-grid { grid-template-columns: 1fr !important; gap: 28px; }
  .footer { padding: 36px 0 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  /* Nav-bar — slightly smaller on phones */
  .nav-inner { padding: 12px 18px; }
  .nav-brand { font-size: 17px; }
  .nav-brand-mark { width: 28px; height: 28px; font-size: 11px; }

  /* Prose — bigger line-height for readability */
  .prose { font-size: 16px; line-height: 1.65; }
  .prose h2 { font-size: 24px; margin-top: 28px; }
  .prose h3 { font-size: 19px; margin-top: 22px; }
  .prose code { font-size: 13px; padding: 1px 5px; }
  .prose pre { font-size: 12px; padding: 12px; overflow-x: auto; }

  /* Tables — horizontal scroll to prevent overflow */
  table { font-size: 13px; }
  .prose table {
    display: block; overflow-x: auto; -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
}

/* Extra-small phones (iPhone SE width) */
@media (max-width: 380px) {
  .hero h1 { font-size: clamp(28px, 8.5vw, 36px); }
  .tool-shell { padding: 18px 14px; }
  .wrap { padding-left: 14px; padding-right: 14px; }
}