/* ===== Tokens ===== */
:root{
  --ink: #14213D;
  --navy: #1D4ED8;
  --navy-2: #1E3A8A;
  --paper: #FFFFFF;
  --paper-2: #EFF6FF;
  --card-bg: #ffffff;
  --line: #D6E4F5;
  --signal: #3B82F6;
  --signal-ink: #FFFFFF;
  --muted: #5B6B85;
  --muted-paper: #9FB2CC;
  --ondark: #FFFFFF;
  --ondark-muted: #C7DBFA;
  --radius: 3px;
  --max: 1080px;
  --shadow: none;
}

html[data-theme="dark"]{
  --ink: #E6EDFB;
  --navy: #0B1220;
  --navy-2: #111C33;
  --paper: #0B1220;
  --paper-2: #131C30;
  --card-bg: #131C30;
  --line: #23324D;
  --signal: #60A5FA;
  --signal-ink: #0B1220;
  --muted: #93A6C4;
  --muted-paper: #4C5C7A;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Source Serif 4", Georgia, serif;
  font-size:17px;
  line-height:1.6;
  transition:background .2s ease, color .2s ease;
}
h1,h2,h3,h4,.mono{
  font-family:"Space Grotesk", "Arial Narrow", sans-serif;
  letter-spacing:-0.01em;
}
a{color:inherit;}
img{max-width:100%;}

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

/* ===== Header ===== */
header.site{
  background:var(--navy);
  color:var(--ondark);
  border-bottom:3px solid var(--signal);
  position:sticky; top:0; z-index:50;
}
.site-nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px;
  max-width:var(--max); margin:0 auto;
}
.brand{
  font-family:"Space Grotesk", sans-serif;
  font-weight:700;
  font-size:1.35rem;
  color:#fff;
  text-decoration:none;
  display:flex; align-items:baseline; gap:6px;
  white-space:nowrap;
}
.brand .dot{color:var(--signal);}
.nav-right{display:flex; align-items:center; gap:20px;}
.site-nav nav{display:flex; gap:24px; font-size:.93rem;}
.site-nav nav a{text-decoration:none; color:#fff; opacity:.85; border-bottom:1px solid transparent; padding-bottom:2px;}
.site-nav nav a:hover{opacity:1; border-color:var(--signal);}

.theme-toggle, .menu-toggle{
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;
  width:36px; height:36px;
  border-radius:var(--radius);
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
}
.menu-toggle{display:none;}

/* ===== Hero ===== */
.hero{
  background:var(--navy);
  color:var(--ondark);
  padding:56px 24px 64px;
}
.hero h1{
  font-size:clamp(2rem, 4.5vw, 3.1rem);
  margin:0 0 10px;
  color:#fff;
  max-width:16ch;
}
.hero p.lede{
  color:var(--ondark);
  opacity:.82;
  max-width:52ch;
  font-size:1.08rem;
  margin:0 0 28px;
}
.search-box{
  display:flex;
  max-width:520px;
  border:1px solid rgba(243,240,231,0.35);
  background:rgba(255,255,255,0.04);
  border-radius:var(--radius);
  overflow:hidden;
}
.search-box input{
  flex:1; border:0; background:transparent; padding:14px 16px; color:#fff;
  font-family:"Space Grotesk", sans-serif; font-size:1rem; outline:none;
}
.search-box input::placeholder{color:var(--muted-paper);}
.search-box button{
  border:0; background:var(--signal); color:var(--signal-ink);
  font-family:"Space Grotesk", sans-serif; font-weight:600;
  padding:0 20px; cursor:pointer;
}
.hero-stats{display:flex; gap:28px; margin-top:30px; flex-wrap:wrap;}
.hero-stats div{font-family:"Space Grotesk",sans-serif;}
.hero-stats .n{font-size:1.5rem; font-weight:700; color:var(--signal);}
.hero-stats .l{font-size:.78rem; opacity:.75;}

/* ===== Recently used strip ===== */
.recent-strip{padding:22px 24px 0; display:none;}
.recent-strip.show{display:block;}
.recent-strip .wrap{display:flex; align-items:center; gap:14px; overflow-x:auto; padding-bottom:8px;}
.recent-strip .rlabel{font-family:"Space Grotesk",sans-serif; font-size:.8rem; color:var(--muted); white-space:nowrap;}
.recent-chip{
  white-space:nowrap; text-decoration:none; color:var(--ink);
  border:1px solid var(--line); border-radius:20px; padding:6px 14px;
  font-family:"Space Grotesk",sans-serif; font-size:.83rem; background:var(--card-bg);
}
.recent-chip:hover{border-color:var(--navy);}

/* ===== Catalog ===== */
.catalog{padding:40px 24px 80px;}
.cat-section{margin-bottom:44px;}
.cat-head{
  display:flex; align-items:baseline; gap:12px;
  border-bottom:1px solid var(--line);
  padding-bottom:8px; margin-bottom:18px;
}
.cat-head h2{font-size:1.15rem; margin:0; color:var(--ink);}
.cat-head .count{font-family:"Space Grotesk",sans-serif; color:var(--muted); font-size:.85rem;}

.tool-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(230px,1fr));
  gap:14px;
}
.tool-card{
  position:relative;
  display:block;
  text-decoration:none;
  color:var(--ink);
  background:var(--card-bg);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
  transition:border-color .15s ease, transform .12s ease, box-shadow .15s ease;
}
.tool-card:hover{border-color:var(--navy); transform:translateY(-2px);}
.tool-card .code{
  font-family:"Space Grotesk", sans-serif; font-size:.72rem;
  letter-spacing:.04em; color:var(--muted); display:block; margin-bottom:8px;
}
.tool-card h3{font-size:1.05rem; margin:0 0 6px;}
.tool-card p{font-size:.9rem; color:var(--muted); margin:0; line-height:1.45;}
.tool-card.disabled{opacity:.45; cursor:default;}
.tool-card.disabled:hover{border-color:var(--line); transform:none;}
.fav-btn{
  position:absolute; top:12px; right:12px;
  background:none; border:0; cursor:pointer;
  font-size:1rem; color:var(--muted-paper); line-height:1;
  padding:2px;
}
.fav-btn.active{color:var(--signal);}

/* ===== Tool page ===== */
.tool-header{background:var(--navy-2); color:var(--ondark); padding:34px 24px;}
.tool-header .code{font-family:"Space Grotesk",sans-serif; color:var(--signal); font-size:.85rem; letter-spacing:.05em;}
.tool-header h1{color:#fff; margin:8px 0 6px; font-size:1.8rem;}
.tool-header p{color:var(--ondark); opacity:.8; margin:0; max-width:60ch;}
.breadcrumb{font-size:.85rem; opacity:.7; margin-bottom:10px;}
.breadcrumb a{text-decoration:none; border-bottom:1px solid rgba(243,240,231,.4);}

.tool-body{padding:40px 24px 60px;}
.panel{
  background:var(--card-bg); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; max-width:760px;
}
.dropzone{
  border:2px dashed var(--line); border-radius:var(--radius); padding:36px 20px;
  text-align:center; color:var(--muted); font-family:"Space Grotesk",sans-serif;
  cursor:pointer; transition:border-color .15s;
}
.dropzone.drag{border-color:var(--signal); background:rgba(255,197,61,.08);}
.file-list{list-style:none; padding:0; margin:16px 0; font-family:"Space Grotesk",sans-serif; font-size:.9rem;}
.file-list li{display:flex; justify-content:space-between; align-items:center; padding:8px 10px; border-bottom:1px solid var(--line);}
.file-list li button{border:0; background:none; color:#C24444; cursor:pointer; font-size:.85rem;}

label{display:block; font-family:"Space Grotesk",sans-serif; font-size:.85rem; color:var(--muted); margin:16px 0 6px;}
label:first-child{margin-top:0;}
input[type=text], input[type=number], select{
  width:100%; padding:11px 12px; border:1px solid var(--line); border-radius:var(--radius);
  font-family:"Source Serif 4", serif; font-size:1rem; background:var(--paper); color:var(--ink);
}
input[type=range]{width:100%;}
textarea{
  width:100%; min-height:220px; padding:14px; border:1px solid var(--line); border-radius:var(--radius);
  font-family:"Source Serif 4", serif; font-size:1rem; background:var(--paper); color:var(--ink); resize:vertical;
}
.checkbox-row{display:flex; align-items:center; gap:8px; font-family:"Space Grotesk",sans-serif; font-size:.9rem; margin-top:10px;}
.checkbox-row input{width:auto;}

.btn{
  display:inline-block; background:var(--navy); color:#fff;
  font-family:"Space Grotesk",sans-serif; font-weight:600;
  border:0; padding:12px 22px; border-radius:var(--radius); cursor:pointer;
  font-size:.95rem; text-decoration:none;
}
.btn:hover{background:var(--navy-2);}
.btn:disabled{background:var(--muted-paper); cursor:not-allowed;}
.btn.secondary{background:transparent; color:var(--ink); border:1px solid var(--line);}
.btn-row{display:flex; gap:10px; flex-wrap:wrap; margin-top:14px;}

.result{margin-top:20px; padding:16px; background:var(--paper-2); border-radius:var(--radius); font-family:"Space Grotesk",sans-serif; font-size:.92rem;}
.stat-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:12px; margin-top:18px;}
.stat{background:var(--paper-2); border-radius:var(--radius); padding:14px;}
.stat .num{font-family:"Space Grotesk",sans-serif; font-size:1.5rem; font-weight:700; color:var(--navy);}
html[data-theme="dark"] .stat .num{color:var(--signal);}
.stat .lbl{font-size:.8rem; color:var(--muted); font-family:"Space Grotesk",sans-serif;}

.about-copy{max-width:70ch; margin:0 auto; padding:50px 24px;}
.about-copy h2{margin-top:36px;}

/* ===== Footer ===== */
footer.site{border-top:1px solid var(--line); padding:28px 24px 40px; color:var(--muted); font-size:.88rem;}
footer.site .wrap{display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; align-items:center;}
footer.site nav a{margin-left:16px; text-decoration:none; color:var(--muted);}
footer.site nav a:hover{color:var(--ink);}

@media (max-width:760px){
  .site-nav nav{
    position:fixed; top:64px; left:0; right:0; background:var(--navy);
    flex-direction:column; padding:16px 24px; gap:16px; border-bottom:3px solid var(--signal);
    transform:translateY(-150%); transition:transform .2s ease; z-index:40;
  }
  .site-nav nav.open{transform:translateY(0);}
  .menu-toggle{display:flex;}
  footer.site .wrap{flex-direction:column; align-items:flex-start;}
  footer.site nav a{margin-left:0; margin-right:14px;}
}

/* ===== Ad slots =====
   Hidden by default so empty placeholders don't clutter the site before
   AdSense approval. When you paste real ad code into a .ad-placeholder,
   also add class="ad-slot--live" to its parent .ad-slot div to reveal it. */
.ad-slot{
  margin:0 auto;
  max-width:var(--max);
  display:none;
  align-items:center;
  justify-content:center;
}
.ad-slot.ad-slot--live{
  display:flex;
  margin:28px auto;
}
.ad-slot .ad-placeholder{
  width:100%;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--paper-2);
  color:var(--muted);
  font-family:"Space Grotesk",sans-serif;
  font-size:.78rem;
  letter-spacing:.03em;
  text-transform:uppercase;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:10px;
}
.ad-slot--leaderboard .ad-placeholder{ min-height:90px; }
.ad-slot--banner .ad-placeholder{ min-height:100px; }
.ad-slot--rectangle{ max-width:336px; }
.ad-slot--rectangle .ad-placeholder{ min-height:280px; }
.ad-slot--infeed .ad-placeholder{ min-height:120px; }

@media (max-width:640px){
  .ad-slot .ad-placeholder{ min-height:100px !important; font-size:.7rem; }
}