/* =========================================================
   ToolCrate — Shared Design System
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --bg:#F7F4EE;
  --bg-elevated:#FFFFFF;
  --bg-sunken:#EFEBE2;
  --ink:#181512;
  --ink-soft:#5B564D;
  --ink-faint:#8B857A;
  --brass:#B8763B;
  --brass-dark:#93602E;
  --teal:#1F6F64;
  --teal-soft:#E4F0EE;
  --line:rgba(24,21,18,0.12);
  --line-strong:rgba(24,21,18,0.22);
  --radius-sm:6px;
  --radius:12px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(24,21,18,0.06);
  --shadow:0 4px 14px rgba(24,21,18,0.07);
  --shadow-lg:0 16px 40px rgba(24,21,18,0.12);
  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;
  --maxw:1200px;
  --safe-good:#2E8B57;
}

[data-theme="dark"]{
  --bg:#11151A;
  --bg-elevated:#181D24;
  --bg-sunken:#0C0F13;
  --ink:#F3F1EA;
  --ink-soft:#B4AFA5;
  --ink-faint:#7C7870;
  --brass:#E3A360;
  --brass-dark:#C88A3E;
  --teal:#54C4B2;
  --teal-soft:#16302B;
  --line:rgba(243,241,234,0.10);
  --line-strong:rgba(243,241,234,0.18);
  --shadow-sm:0 1px 2px rgba(0,0,0,0.35);
  --shadow:0 4px 14px rgba(0,0,0,0.35);
  --shadow-lg:0 16px 40px rgba(0,0,0,0.5);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease, color .25s ease;
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{
  font-family:var(--font-display);
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
p{ margin:0 0 1em; color:var(--ink-soft); }
code, .mono{ font-family:var(--font-mono); }

:focus-visible{
  outline:2px solid var(--brass);
  outline-offset:2px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
}

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

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border-radius:999px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--brass); color:#1A1310; }
.btn-primary:hover{ background:var(--brass-dark); box-shadow:var(--shadow); }
.btn-ghost{ background:transparent; border-color:var(--line-strong); color:var(--ink); }
.btn-ghost:hover{ background:var(--bg-sunken); }

.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--teal);
  font-weight:600;
}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.site-header{
  position:sticky; top:0; z-index:100;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.logo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:20px;
  display:flex; align-items:center; gap:8px;
}
.logo .dot{ width:8px; height:8px; border-radius:50%; background:var(--brass); }

.nav-menu{
  display:flex; align-items:center; gap:4px;
}
.nav-item{ position:relative; }
.nav-link{
  display:flex; align-items:center; gap:6px;
  padding:10px 16px;
  border-radius:999px;
  font-weight:600;
  font-size:14.5px;
  cursor:pointer;
}
.nav-link:hover, .nav-link[aria-expanded="true"]{ background:var(--bg-sunken); }
.nav-link .count{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
  font-weight:500;
}
.caret{ width:9px; height:9px; border-right:1.6px solid currentColor; border-bottom:1.6px solid currentColor; transform:rotate(45deg); margin-top:-3px; transition:transform .15s ease; }
.nav-link[aria-expanded="true"] .caret{ transform:rotate(225deg); margin-top:3px; }

.mega{
  position:absolute; top:calc(100% + 10px); left:50%; transform:translateX(-50%);
  width:520px;
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
  padding:18px;
  display:none;
  grid-template-columns:1fr 1fr;
  gap:2px 18px;
}
.nav-item.open .mega{ display:grid; }
.mega a{
  display:block;
  padding:9px 10px;
  border-radius:var(--radius-sm);
  font-size:14px;
  color:var(--ink-soft);
}
.mega a:hover{ background:var(--teal-soft); color:var(--teal); }
.mega-footer{
  grid-column:1/-1;
  margin-top:8px; padding-top:12px;
  border-top:1px solid var(--line);
}
.mega-footer a{ color:var(--brass); font-weight:600; }

.nav-right{ display:flex; align-items:center; gap:10px; }

.theme-toggle{
  width:42px; height:42px; border-radius:50%;
  border:1px solid var(--line-strong);
  background:var(--bg-elevated);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  color:var(--ink);
}
.theme-toggle:hover{ background:var(--bg-sunken); }
.theme-toggle svg{ width:19px; height:19px; }
.theme-toggle .icon-moon{ display:none; }
[data-theme="dark"] .theme-toggle .icon-sun{ display:none; }
[data-theme="dark"] .theme-toggle .icon-moon{ display:block; }

.hamburger{
  display:none;
  width:42px; height:42px; border-radius:50%;
  border:1px solid var(--line-strong);
  background:var(--bg-elevated);
  align-items:center; justify-content:center;
  cursor:pointer;
}
.hamburger span, .hamburger span::before, .hamburger span::after{
  content:''; display:block; width:18px; height:2px; background:var(--ink); position:relative; transition:.2s;
}
.hamburger span::before{ position:absolute; top:-6px; }
.hamburger span::after{ position:absolute; top:6px; }

/* Mobile nav drawer */
.mobile-nav{
  display:none;
  position:fixed; inset:72px 0 0 0; z-index:99;
  background:var(--bg); overflow-y:auto;
  padding:12px 20px 40px;
}
.mobile-nav.open{ display:block; }
.mobile-cat{ border-bottom:1px solid var(--line); }
.mobile-cat-head{
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 4px; font-weight:600; font-family:var(--font-display); font-size:17px;
  cursor:pointer;
}
.mobile-cat-list{ display:none; padding:0 4px 14px; }
.mobile-cat.open .mobile-cat-list{ display:block; }
.mobile-cat-list a{ display:block; padding:9px 0; color:var(--ink-soft); font-size:14.5px; }

@media (max-width:920px){
  .nav-menu{ display:none; }
  .hamburger{ display:flex; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; align-items:center;
}
.hero h1{
  font-size:clamp(32px, 4.4vw, 52px);
  margin-bottom:18px;
}
.hero h1 .accent{ color:var(--brass); }
.hero-sub{
  font-size:17.5px;
  max-width:46ch;
  margin-bottom:28px;
}
.search-box{
  display:flex; align-items:center; gap:10px;
  background:var(--bg-elevated);
  border:1px solid var(--line-strong);
  border-radius:14px;
  padding:6px 6px 6px 18px;
  box-shadow:var(--shadow-sm);
  max-width:480px;
}
.search-box svg{ width:18px; height:18px; color:var(--ink-faint); flex-shrink:0; }
.search-box input{
  border:none; outline:none; background:transparent;
  font-family:var(--font-body); font-size:15px; color:var(--ink);
  flex:1; padding:12px 0;
}
.search-box button{
  background:var(--ink); color:var(--bg);
  border:none; border-radius:10px; padding:10px 18px;
  font-weight:600; font-size:14px; cursor:pointer; white-space:nowrap;
}
[data-theme="dark"] .search-box button{ background:var(--brass); color:#1A1310; }
.hero-meta{ margin-top:16px; font-size:13.5px; color:var(--ink-faint); }

/* Live demo card in hero */
.demo-card{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  padding:22px;
}
.demo-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:14px; }
.demo-title{ font-weight:600; font-size:14px; }
.live-badge{
  display:flex; align-items:center; gap:6px;
  font-family:var(--font-mono); font-size:11px; color:var(--safe-good);
}
.live-dot{ width:7px; height:7px; border-radius:50%; background:var(--safe-good); animation:pulse 1.6s infinite; }
@keyframes pulse{ 0%,100%{opacity:1;} 50%{opacity:.35;} }
.demo-card textarea{
  width:100%; min-height:100px; resize:vertical;
  background:var(--bg-sunken); border:1px solid var(--line);
  border-radius:var(--radius-sm); padding:12px 14px;
  font-family:var(--font-mono); font-size:13.5px; color:var(--ink);
}
.demo-stats{
  display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-top:14px;
}
.demo-stat{ background:var(--bg-sunken); border-radius:var(--radius-sm); padding:12px; text-align:center; }
.demo-stat .num{ font-family:var(--font-mono); font-size:20px; font-weight:600; color:var(--brass); }
.demo-stat .lbl{ font-size:11.5px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.04em; }
.demo-foot{ margin-top:14px; font-size:12.5px; color:var(--ink-faint); text-align:center; }

@media (max-width:920px){
  .hero-grid{ grid-template-columns:1fr; }
}

/* =========================================================
   CATEGORY CARDS (homepage hero-menu)
   ========================================================= */
.cat-strip{ padding:8px 0 56px; }
.cat-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:18px;
}
.cat-card{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.cat-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow); border-color:var(--line-strong); }
.cat-icon{
  width:44px; height:44px; border-radius:10px;
  background:var(--teal-soft); color:var(--teal);
  display:flex; align-items:center; justify-content:center; margin-bottom:16px;
}
.cat-icon svg{ width:22px; height:22px; }
.cat-card h3{ font-size:18px; margin-bottom:4px; }
.cat-card .count{ font-family:var(--font-mono); font-size:12.5px; color:var(--ink-faint); }

@media (max-width:920px){
  .cat-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){
  .cat-grid{ grid-template-columns:1fr; }
}

/* =========================================================
   TOOL GRID (homepage + category pages)
   ========================================================= */
.section{ padding:56px 0; border-top:1px solid var(--line); }
.section-head{ display:flex; align-items:baseline; justify-content:space-between; margin-bottom:24px; flex-wrap:wrap; gap:8px; }
.section-head h2{ font-size:26px; }
.section-head .tag{ font-family:var(--font-mono); font-size:12.5px; color:var(--ink-faint); }
.tool-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:14px;
}
.tool-card{
  display:block;
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px 20px;
  transition:border-color .15s ease, transform .15s ease;
}
.tool-card:hover{ border-color:var(--brass); transform:translateY(-2px); }
.tool-card .name{ font-weight:600; font-size:15px; margin-bottom:4px; display:block; }
.tool-card .desc{ font-size:13px; color:var(--ink-faint); margin:0; }
.tool-card.hidden{ display:none; }

@media (max-width:920px){ .tool-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .tool-grid{ grid-template-columns:1fr; } }

/* =========================================================
   TOOL PAGE
   ========================================================= */
.breadcrumb{ font-size:13px; color:var(--ink-faint); padding:20px 0 0; }
.breadcrumb a{ color:var(--teal); }

.tool-hero{ padding:20px 0 40px; }
.tool-hero h1{ font-size:clamp(26px,3.4vw,38px); margin-bottom:8px; }
.tool-hero .lede{ font-size:16px; max-width:70ch; }

.tool-app{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:26px;
  margin-bottom:8px;
}
.app-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.app-col label{ font-weight:600; font-size:13.5px; display:block; margin-bottom:8px; }
.app-col textarea, .app-col .output-box{
  width:100%; min-height:220px;
  background:var(--bg-sunken);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:14px; font-family:var(--font-mono); font-size:13.5px;
  color:var(--ink); resize:vertical; white-space:pre-wrap; overflow-wrap:anywhere;
}
.app-actions{ display:flex; gap:10px; margin-top:16px; flex-wrap:wrap; }
.app-actions .btn-ghost{ padding:10px 16px; font-size:13.5px; }

.stat-row{
  display:flex; flex-wrap:wrap; gap:10px; margin-top:18px;
}
.stat-pill{
  background:var(--bg-sunken); border:1px solid var(--line);
  border-radius:999px; padding:8px 16px;
  font-family:var(--font-mono); font-size:12.5px; color:var(--ink-soft);
}
.stat-pill b{ color:var(--brass); font-size:14px; }

@media (max-width:760px){ .app-grid{ grid-template-columns:1fr; } }

.content-block{ max-width:76ch; }
.content-block h2{ font-size:22px; margin-top:8px; }
.steps{ counter-reset:step; margin:20px 0; }
.steps li{
  counter-increment:step;
  position:relative; padding-left:40px; margin-bottom:14px; color:var(--ink-soft);
}
.steps li::before{
  content:counter(step);
  position:absolute; left:0; top:0;
  width:26px; height:26px; border-radius:50%;
  background:var(--teal-soft); color:var(--teal);
  font-family:var(--font-mono); font-size:12.5px; font-weight:600;
  display:flex; align-items:center; justify-content:center;
}

.faq{ max-width:76ch; }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  display:flex; justify-content:space-between; align-items:center;
  padding:18px 0; cursor:pointer; font-weight:600; font-size:15px;
}
.faq-q .plus{ font-family:var(--font-mono); font-size:18px; color:var(--brass); transition:transform .15s ease; }
.faq-item.open .plus{ transform:rotate(45deg); }
.faq-a{ display:none; padding-bottom:18px; color:var(--ink-soft); font-size:14.5px; }
.faq-item.open .faq-a{ display:block; }

.related-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
@media (max-width:920px){ .related-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .related-grid{ grid-template-columns:1fr; } }

.badge-local{
  display:inline-flex; align-items:center; gap:6px;
  font-family:var(--font-mono); font-size:12px; color:var(--teal);
  background:var(--teal-soft); padding:6px 12px; border-radius:999px; margin-bottom:16px;
}
.badge-local .dot{ width:6px; height:6px; border-radius:50%; background:var(--teal); }

/* =========================================================
   TOOL APP — extra components (option chips, tabs, diff, tables)
   ========================================================= */
.option-row{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px; }
.option-btn{
  padding:9px 16px; border-radius:999px; font-size:13.5px; font-weight:600;
  background:var(--bg-sunken); border:1px solid var(--line); color:var(--ink-soft);
  cursor:pointer; transition:.15s ease;
}
.option-btn:hover{ border-color:var(--brass); color:var(--ink); }
.option-btn.active{ background:var(--brass); border-color:var(--brass); color:#1A1310; }

.field-row{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:16px; }
.field-group{ flex:1; min-width:180px; }
.field-group label{ font-size:12.5px; font-weight:600; display:block; margin-bottom:6px; color:var(--ink-soft); }
.field-group input[type="text"], .field-group input[type="number"]{
  width:100%; padding:10px 12px; border-radius:var(--radius-sm);
  border:1px solid var(--line-strong); background:var(--bg-elevated);
  font-family:var(--font-mono); font-size:13.5px; color:var(--ink);
}
.check-row{ display:flex; align-items:center; gap:8px; font-size:13.5px; color:var(--ink-soft); margin-bottom:10px; }
.check-row input{ width:16px; height:16px; accent-color:var(--brass); }

.tabs{ display:flex; gap:4px; margin-bottom:18px; background:var(--bg-sunken); padding:4px; border-radius:999px; width:fit-content; }
.tab-btn{ padding:9px 18px; border-radius:999px; font-size:13.5px; font-weight:600; background:transparent; border:none; cursor:pointer; color:var(--ink-soft); }
.tab-btn.active{ background:var(--bg-elevated); color:var(--ink); box-shadow:var(--shadow-sm); }
.tab-panel{ display:none; }
.tab-panel.active{ display:block; }

.diff-out{ line-height:1.9; }
.diff-line-add{ background:rgba(46,139,87,0.15); border-left:3px solid var(--safe-good); padding:2px 8px; display:block; }
.diff-line-del{ background:rgba(200,60,60,0.13); border-left:3px solid #C83C3C; padding:2px 8px; display:block; text-decoration:line-through; opacity:.8; }
.diff-line-same{ padding:2px 8px; display:block; color:var(--ink-faint); }

.freq-table{ width:100%; border-collapse:collapse; font-family:var(--font-mono); font-size:13.5px; }
.freq-table th, .freq-table td{ text-align:left; padding:8px 10px; border-bottom:1px solid var(--line); }
.freq-table th{ color:var(--ink-faint); font-weight:600; font-size:12px; text-transform:uppercase; letter-spacing:.04em; }

.result-banner{
  padding:16px 18px; border-radius:var(--radius-sm); font-weight:600; font-size:15px;
  background:var(--teal-soft); color:var(--teal); margin-bottom:14px;
}
.result-banner.negative{ background:rgba(200,60,60,0.13); color:#C83C3C; }

.preview-box{
  background:var(--bg-sunken); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:16px; min-height:220px; overflow:auto;
}
.preview-box h1,.preview-box h2,.preview-box h3{ margin-top:0; }
.preview-box p{ color:var(--ink); }
.preview-box code{ background:var(--bg-elevated); padding:1px 5px; border-radius:4px; }
.preview-box pre{ background:var(--bg-elevated); padding:10px; border-radius:6px; overflow:auto; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{
  background:var(--bg-sunken);
  border-top:1px solid var(--line);
  padding:52px 0 24px;
  margin-top:40px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;
  padding-bottom:32px; border-bottom:1px solid var(--line);
}
.footer-brand .logo{ margin-bottom:12px; }
.footer-brand p{ font-size:14px; max-width:32ch; }
.footer-col h4{ font-family:var(--font-body); font-size:13px; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-faint); margin-bottom:14px; }
.footer-col a{ display:block; font-size:14px; color:var(--ink-soft); margin-bottom:10px; }
.footer-col a:hover{ color:var(--brass); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px;
  padding-top:20px; font-size:13px; color:var(--ink-faint);
}
@media (max-width:760px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:480px){
  .footer-grid{ grid-template-columns:1fr; }
}