@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --bg:#f7f8fb;
  --card:#ffffff;
  --text:#14161f;
  --muted:#636b7a;
  --border:#e6e8ee;
  --accent:#4353ff;
  --accent-dark:#2f3fe0;
  --accent-soft:#eef0ff;
  --accent-2:#00b894;
  --shadow:0 1px 2px rgba(20,22,31,0.04), 0 8px 24px rgba(20,22,31,0.05);
  --mono:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b0d12;
    --card:#12141b;
    --text:#eceef3;
    --muted:#9aa2b1;
    --border:#22252f;
    --accent:#7b89ff;
    --accent-dark:#98a3ff;
    --accent-soft:#181c33;
    --accent-2:#2ee6ae;
    --shadow:0 1px 2px rgba(0,0,0,0.3), 0 8px 24px rgba(0,0,0,0.35);
  }
}
*{box-sizing:border-box;}
[hidden]{display:none!important;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  position:relative;
  background:
    radial-gradient(680px 420px at 12% -8%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(560px 380px at 100% 0%, color-mix(in srgb, var(--accent-2) 12%, transparent), transparent 55%),
    var(--bg);
  background-attachment:fixed;
  color:var(--text);
  font-family:var(--sans);
  line-height:1.6;
  font-feature-settings:"tnum" 1, "cv11" 1;
}
body::before{
  content:'';
  position:fixed;inset:0;pointer-events:none;z-index:0;
  opacity:0.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}
a{color:inherit;}
::selection{background:color-mix(in srgb, var(--accent) 30%, transparent);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.wrap{max-width:880px;margin:0 auto;padding:0 20px;}

/* Header */
header.site{
  border-bottom:1px solid var(--border);
  position:sticky;top:0;
  background:color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  z-index:10;
}
.site-nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;
  max-width:880px;margin:0 auto;padding-left:20px;padding-right:20px;
  gap:16px;flex-wrap:wrap;
}
.brand{font-weight:800;font-size:1.05rem;text-decoration:none;display:flex;align-items:center;gap:9px;letter-spacing:-0.01em;}
.brand .dot{
  width:20px;height:20px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 2px 8px color-mix(in srgb, var(--accent) 45%, transparent);
  position:relative;
}
.brand .dot::after{content:'';width:6px;height:6px;border-radius:50%;background:#fff;opacity:0.95;}
.nav-links{display:flex;gap:20px;font-size:0.92rem;flex-wrap:wrap;}
.nav-links a{text-decoration:none;color:var(--muted);}
.nav-links a:hover, .nav-links a.active{color:var(--text);}
.nav-links details{position:relative;}
.nav-links summary{list-style:none;cursor:pointer;color:var(--muted);}
.nav-links summary::-webkit-details-marker{display:none;}
.nav-links details[open] summary{color:var(--text);}
.dropdown{
  position:absolute;top:24px;left:0;
  background:var(--card);border:1px solid var(--border);border-radius:10px;
  padding:8px;min-width:200px;box-shadow:0 8px 24px rgba(0,0,0,0.08);
}
.dropdown a{display:block;padding:8px 10px;border-radius:6px;font-size:0.9rem;text-decoration:none;color:var(--text);}
.dropdown a:hover{background:var(--accent-soft);}

main{padding:52px 0 80px;}

.breadcrumb{
  max-width:880px;margin:0 auto;padding:14px 20px 0;
  font-size:0.82rem;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap;
}
.breadcrumb a{color:var(--muted);text-decoration:none;}
.breadcrumb a:hover{color:var(--accent-dark);}
.breadcrumb .sep{color:var(--border);}
.breadcrumb .current{color:var(--text);font-weight:500;}

.hero{text-align:center;margin-bottom:40px;position:relative;}
.hero h1{font-size:2.35rem;font-weight:800;margin:0 0 14px;letter-spacing:-0.03em;line-height:1.12;}
.hero p{color:var(--muted);font-size:1.06rem;margin:0;max-width:540px;margin:0 auto;}
@media (max-width:600px){.hero h1{font-size:1.7rem;}}

.hero-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg, var(--accent-soft), color-mix(in srgb, var(--accent-2) 12%, var(--accent-soft)));
  border:1px solid color-mix(in srgb, var(--accent) 20%, var(--border));
  color:var(--accent-dark);
  box-shadow:0 8px 20px color-mix(in srgb, var(--accent) 18%, transparent);
}
.hero-icon svg{width:28px;height:28px;}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  padding:26px;
  margin-bottom:22px;
  box-shadow:inset 0 1px 0 color-mix(in srgb, #fff 40%, transparent), var(--shadow);
  scroll-margin-top:76px;
  position:relative;
  z-index:1;
}

/* FAQ accordions */
.explainer details{
  border-bottom:1px solid var(--border);
  padding:14px 0;
}
.explainer details:first-of-type{border-top:1px solid var(--border);margin-top:4px;}
.explainer details summary{
  cursor:pointer;font-weight:600;font-size:0.95rem;color:var(--text);
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.explainer details summary::-webkit-details-marker{display:none;}
.explainer details summary::after{
  content:'+';font-size:1.3rem;font-weight:400;color:var(--muted);flex-shrink:0;
  transition:transform 0.2s ease;line-height:1;
}
.explainer details[open] summary::after{transform:rotate(45deg);}
.explainer details p{margin:10px 0 0;color:var(--muted);font-size:0.9rem;}

/* Landing page extras */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--card);color:var(--text);
  border:1px solid var(--border);
  font-size:0.78rem;font-weight:600;padding:7px 14px 7px 10px;border-radius:999px;
  margin-bottom:22px;box-shadow:var(--shadow);
}
.badge .pulse{width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent-2) 25%, transparent);animation:pulse 2s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.4;}}

.hero h1{background:linear-gradient(135deg,var(--text) 45%,var(--accent) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;}

.stats-row{
  display:flex;justify-content:center;gap:32px;flex-wrap:wrap;margin:24px 0 8px;
}
.stat{text-align:center;}
.stat .num{font-family:var(--mono);font-size:1.5rem;font-weight:700;color:var(--text);}
.stat .label{font-size:0.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-top:2px;}

.category-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;}
.category-card{
  background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;
  text-decoration:none;color:var(--text);box-shadow:var(--shadow);
  transition:transform 0.15s ease, border-color 0.15s ease;
}
.category-card:hover{transform:translateY(-2px);border-color:var(--accent);}
.category-icon{
  width:38px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent-dark);
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.category-icon svg{width:20px;height:20px;}
.category-card h3{margin:0 0 4px;font-size:1rem;}
.category-card p{margin:0 0 8px;color:var(--muted);font-size:0.86rem;}
.category-card .count{font-size:0.78rem;color:var(--accent-dark);font-weight:600;}

.section-label{
  text-align:center;font-size:0.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--accent-dark);margin-bottom:8px;
}
.section-heading{text-align:center;font-size:1.4rem;margin:0 0 8px;letter-spacing:-0.01em;}
.section-desc{text-align:center;color:var(--muted);font-size:0.95rem;margin:0 0 28px;max-width:520px;margin-left:auto;margin-right:auto;}

.tiers{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;justify-content:center;}
.tier-btn{
  border:1px solid var(--border);
  background:var(--bg);
  color:var(--text);
  padding:8px 15px;
  border-radius:999px;
  cursor:pointer;
  font-size:0.88rem;
  font-family:var(--mono);
  transition:all 0.15s ease;
}
.tier-btn:hover{border-color:var(--accent);transform:translateY(-1px);}
.tier-btn.active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 4px 12px color-mix(in srgb, var(--accent) 35%, transparent);}

.custom-row{display:flex;gap:10px;align-items:center;justify-content:center;margin-top:8px;}
.custom-row label{font-size:0.9rem;color:var(--muted);white-space:nowrap;}
.field-input{
  font-family:var(--mono);font-size:1rem;padding:10px 12px;border-radius:8px;
  border:1px solid var(--border);background:var(--bg);color:var(--text);min-width:0;
}
.custom-row .field-input{max-width:160px;}

/* Result hero card */
.result-hero{text-align:center;padding:36px 24px;background:linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, var(--card)), var(--card));}
.result-hero .label{font-size:0.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px;}
.result-hero .pct{font-size:1.1rem;font-weight:600;color:var(--accent-dark);margin-bottom:18px;}
.result-hero .big-value{font-family:var(--mono);font-size:2.8rem;font-weight:800;margin-bottom:4px;letter-spacing:-0.02em;}
.result-hero .big-caption{color:var(--muted);font-size:0.9rem;}

.results{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-top:20px;
}
.result{background:var(--accent-soft);border-radius:10px;padding:14px 16px;}
.result .label{font-size:0.75rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px;}
.result .value{font-family:var(--mono);font-size:1.02rem;font-weight:600;color:var(--accent-dark);}

.actions{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap;}
.btn-ghost{
  border:1px solid var(--border);background:var(--bg);color:var(--text);
  padding:9px 16px;border-radius:9px;cursor:pointer;font-size:0.88rem;font-weight:500;
  transition:all 0.15s ease;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}

table.compare{width:100%;border-collapse:collapse;font-size:0.9rem;margin-top:6px;}
table.compare th, table.compare td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);}
table.compare th{color:var(--muted);font-weight:600;font-size:0.78rem;text-transform:uppercase;letter-spacing:.03em;}
table.compare td.num, table.compare th.num{text-align:right;}
table.compare a{color:var(--accent-dark);text-decoration:none;font-weight:600;}
table.compare a:hover{text-decoration:underline;}

.cta{
  background:linear-gradient(150deg, color-mix(in srgb, var(--accent) 10%, var(--card)), var(--card) 60%);
  border:1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  text-align:center;
}
.cta p{margin:0 0 16px;font-size:1rem;}
.cta a.btn{
  display:inline-block;background:var(--accent);color:#fff;text-decoration:none;
  padding:12px 26px;border-radius:10px;font-weight:600;
  box-shadow:0 6px 16px color-mix(in srgb, var(--accent) 35%, transparent);
  transition:all 0.15s ease;
}
.cta a.btn:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 8px 20px color-mix(in srgb, var(--accent) 45%, transparent);}

.maker-cta{
  background:linear-gradient(150deg, color-mix(in srgb, var(--accent-2) 8%, var(--card)), var(--card) 60%);
  border:1px dashed color-mix(in srgb, var(--accent-2) 45%, var(--border));
  text-align:center;
}
.maker-cta p{margin:0;font-size:0.92rem;color:var(--muted);}
.maker-cta a{color:var(--accent-2);font-weight:600;text-decoration:none;}
.maker-cta a:hover{text-decoration:underline;}

.footer-credit{font-size:0.8rem;margin-top:2px;}
.footer-credit a{color:var(--muted);font-weight:600;text-decoration:none;}
.footer-credit a:hover{color:var(--text);}
.disclosure{font-size:0.76rem;color:var(--muted);margin-top:12px;}

h2{font-size:1.15rem;margin:0 0 14px;}
.section-sub{color:var(--muted);font-size:0.9rem;margin-top:-8px;margin-bottom:16px;}

.reverse-row, .field-row{display:flex;gap:10px;flex-wrap:wrap;align-items:end;justify-content:center;}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:0.85rem;color:var(--muted);}
.field select, .field input{
  font-family:var(--mono);font-size:0.95rem;padding:9px 10px;border-radius:8px;
  border:1px solid var(--border);background:var(--bg);color:var(--text);
}
.reverse-result, .calc-result{margin-top:18px;font-size:1rem;text-align:center;}
.reverse-result .big, .calc-result .big{font-family:var(--mono);font-size:1.4rem;font-weight:700;color:var(--accent-dark);}

.progress-track{background:var(--accent-soft);border-radius:999px;height:14px;overflow:hidden;margin:14px 0 6px;}
.progress-fill{background:var(--accent);height:100%;border-radius:999px;}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;}
.tool-card{
  background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;
  text-decoration:none;color:var(--text);transition:transform 0.15s ease, border-color 0.15s ease;
}
.tool-card:hover{border-color:var(--accent);transform:translateY(-2px);}
.tool-card h3{margin:0 0 6px;font-size:1rem;}
.tool-card p{margin:0;color:var(--muted);font-size:0.86rem;}

.explainer h3{font-size:1rem;margin:20px 0 6px;}
.explainer h3:first-child{margin-top:0;}
.explainer p{color:var(--muted);font-size:0.92rem;margin:0 0 8px;}

/* Slider inputs (finance calculators) */
.calc-layout{display:grid;grid-template-columns:1fr 220px;gap:28px;align-items:start;}
@media (max-width:700px){.calc-layout{grid-template-columns:1fr;}}

.slider-field{margin-bottom:26px;}
.slider-field:last-child{margin-bottom:0;}
.slider-field .row{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;}
.slider-field label{font-size:0.88rem;color:var(--muted);}
.slider-field .value-badge{
  background:var(--accent-soft);color:var(--accent-dark);font-family:var(--mono);font-weight:700;
  padding:5px 12px;border-radius:7px;font-size:0.92rem;white-space:nowrap;
}
.slider-field input[type=range]{
  width:100%;height:4px;border-radius:2px;-webkit-appearance:none;appearance:none;
  background:var(--border);outline:none;cursor:pointer;
}
.slider-field input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:18px;height:18px;border-radius:50%;
  background:var(--accent);border:3px solid var(--card);
  box-shadow:0 2px 8px color-mix(in srgb, var(--accent) 45%, transparent);cursor:pointer;
}
.slider-field input[type=range]::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;background:var(--accent);border:3px solid var(--card);
  box-shadow:0 2px 8px color-mix(in srgb, var(--accent) 45%, transparent);cursor:pointer;
}
.slider-field .range-labels{display:flex;justify-content:space-between;font-size:0.72rem;color:var(--muted);margin-top:4px;font-family:var(--mono);}

.donut-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;position:sticky;top:90px;}
.donut{width:150px;height:150px;border-radius:50%;position:relative;flex-shrink:0;}
.donut::after{content:'';position:absolute;inset:24%;background:var(--card);border-radius:50%;}
.donut-legend{display:flex;flex-direction:column;gap:8px;font-size:0.8rem;color:var(--muted);width:100%;}
.donut-legend .item{display:flex;align-items:center;gap:8px;}
.donut-legend .swatch{width:9px;height:9px;border-radius:3px;flex-shrink:0;}
.donut-legend .item span.val{margin-left:auto;color:var(--text);font-weight:600;font-family:var(--mono);font-size:0.78rem;}

.result-list{margin-top:4px;}
.result-list .row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--border);font-size:0.92rem;}
.result-list .row:last-child{border-bottom:none;}
.result-list .row .label{color:var(--muted);}
.result-list .row .value{font-family:var(--mono);font-weight:700;}
.result-list .row.highlight .value{color:var(--accent-dark);font-size:1.1rem;}

/* Homepage hero search bar */
.hero-search{
  display:flex;align-items:center;gap:10px;
  max-width:600px;margin:26px auto 0;
  background:var(--card);border:1px solid var(--border);border-radius:999px;
  padding:8px 8px 8px 20px;box-shadow:var(--shadow);
  position:relative;
}
.hero-search svg{width:18px;height:18px;color:var(--muted);flex-shrink:0;}
.hero-search input{
  flex:1;border:none;background:none;outline:none;color:var(--text);
  font-family:var(--sans);font-size:0.95rem;min-width:0;
}
.hero-search input::placeholder{color:var(--muted);}
.hero-search button{
  border:none;border-radius:999px;padding:11px 20px;font-size:0.88rem;font-weight:600;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;cursor:pointer;
  flex-shrink:0;transition:transform 0.15s ease;
}
.hero-search button:hover{transform:translateY(-1px);}
.hero-search-results{
  position:absolute;top:calc(100% + 8px);left:0;right:0;
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  box-shadow:0 16px 40px rgba(20,22,31,0.12);overflow:hidden;text-align:left;z-index:20;
}
.hero-search-results a{display:block;padding:11px 18px;font-size:0.9rem;color:var(--text);text-decoration:none;border-bottom:1px solid var(--border);}
.hero-search-results a:last-child{border-bottom:none;}
.hero-search-results a:hover{background:var(--accent-soft);}
.hero-actions{display:flex;justify-content:center;gap:10px;margin-top:20px;flex-wrap:wrap;}
.btn-primary{
  border:none;border-radius:10px;padding:11px 20px;font-size:0.9rem;font-weight:600;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;text-decoration:none;
  display:inline-flex;align-items:center;gap:6px;transition:transform 0.15s ease;
}
.btn-primary:hover{transform:translateY(-1px);}
@media (max-width:480px){
  .hero-search{flex-wrap:wrap;border-radius:20px;padding:14px;}
  .hero-search input{width:100%;order:1;padding:8px 0;}
  .hero-search button{order:2;width:100%;}
}

/* Popular tools (homepage) */
.popular-header{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:18px;}
.popular-header .view-all{font-size:0.86rem;font-weight:600;color:var(--accent-dark);text-decoration:none;white-space:nowrap;}
.popular-header .view-all:hover{text-decoration:underline;}
.popular-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;}
.popular-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;
  text-decoration:none;color:var(--text);box-shadow:var(--shadow);position:relative;
  transition:transform 0.15s ease, border-color 0.15s ease;
}
.popular-card:hover{transform:translateY(-2px);border-color:var(--accent);}
.popular-card .popular-icon{
  width:38px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent-dark);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.popular-card .popular-icon svg{width:19px;height:19px;}
.popular-card .popular-tag{
  position:absolute;top:16px;right:16px;font-size:0.68rem;font-weight:700;
  background:color-mix(in srgb, var(--accent-2) 18%, transparent);color:var(--accent-2);
  padding:3px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:.02em;
}
.popular-card h3{margin:0 0 5px;font-size:0.98rem;}
.popular-card p{margin:0 0 12px;color:var(--muted);font-size:0.85rem;line-height:1.45;}
.popular-card .popular-foot{display:flex;justify-content:space-between;align-items:center;font-size:0.76rem;padding-top:10px;border-top:1px solid var(--border);}
.popular-card .popular-foot .free-label{color:var(--muted);text-transform:uppercase;letter-spacing:.03em;font-weight:600;}
.popular-card .popular-foot .use-link{color:var(--accent-dark);font-weight:700;}

/* Category grid v2 (homepage) */
.category-grid-v2{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;}
.category-card-v2{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px;
  text-decoration:none;color:var(--text);box-shadow:var(--shadow);display:flex;gap:14px;
  transition:transform 0.15s ease, border-color 0.15s ease;
}
.category-card-v2:hover{transform:translateY(-2px);border-color:var(--accent);}
.category-card-v2 .cat-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.category-card-v2 .cat-icon svg{width:22px;height:22px;}
.category-card-v2 h3{margin:0 0 5px;font-size:1rem;}
.category-card-v2 p{margin:0 0 10px;color:var(--muted);font-size:0.85rem;line-height:1.45;}
.category-card-v2 .cat-count{
  display:inline-block;font-size:0.74rem;font-weight:700;color:var(--accent-dark);
  background:var(--accent-soft);padding:4px 11px;border-radius:999px;
}

footer.site{border-top:1px solid var(--border);color:var(--muted);font-size:0.82rem;text-align:center;padding:28px 20px;}
footer.site a{color:var(--muted);}
footer.site .footer-links{margin-bottom:10px;font-size:0.85rem;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
footer.site .footer-links a{text-decoration:none;}
footer.site .footer-links a:hover{color:var(--text);}