/* Portfoliogram Tools — portfoliogram.shop */
:root{
  --bg:#ffffff;
  --ink:#16181d;
  --muted:#5f6570;
  --faint:#9aa0aa;
  --line:#e8e9ed;
  --card:#fafbfc;
  --accent:#175cd3;
  --accent-soft:#e9f0fd;
  --accent-dark:#1249ab;
  --danger:#b3372a;
  --radius:12px;
  --max:960px;
  --max-narrow:640px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--ink);
  font-size:16.5px;line-height:1.62;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.wrap-narrow{max-width:var(--max-narrow);margin:0 auto;padding:0 22px}

/* Header */
.site-header{border-bottom:1px solid var(--line);background:#fff}
.header-in{display:flex;align-items:center;justify-content:space-between;padding:15px 22px}
.brand{font-weight:700;font-size:1.12rem;color:var(--ink);text-decoration:none;letter-spacing:-0.01em}
.brand span{color:var(--accent);font-weight:400}

/* Hero */
.hero{padding:60px 22px 10px}
.hero-narrow{padding:44px 22px 6px}
.kicker{font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.hero h1,.hero-narrow h1{font-size:clamp(1.9rem,4.6vw,2.9rem);line-height:1.14;letter-spacing:-0.025em;margin-bottom:16px;max-width:18em}
.lede{font-size:1.1rem;color:var(--muted);max-width:38em}
.back{display:inline-block;margin-bottom:14px;color:var(--accent);text-decoration:none;font-size:.95rem;font-weight:600}
.back:hover{text-decoration:underline}

/* Tool cards (home) */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding-top:44px}
.card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;background:#fff;text-decoration:none;color:var(--ink);
  transition:border-color .15s ease, transform .15s ease;
}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card-num{font-size:.78rem;font-weight:700;letter-spacing:.1em;color:var(--faint);margin-bottom:12px}
.card h2{font-size:1.25rem;letter-spacing:-0.02em;margin-bottom:8px}
.card p{color:var(--muted);font-size:.95rem;flex:1}
.card-link{margin-top:16px;color:var(--accent);font-weight:600;font-size:.95rem}

/* Tool page layout */
.tool{padding-top:26px}
.tool-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;padding:28px;margin-top:8px;
}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.95rem;margin-bottom:7px}
.field .hint{font-weight:400;color:var(--muted);font-size:.86rem;display:block;margin-top:5px}
input[type="number"],input[type="text"],input[type="date"],select{
  width:100%;font-size:16px;padding:12px 14px;border:1px solid #d4d7dd;border-radius:8px;
  font-family:inherit;color:var(--ink);background:#fff;
}
input:focus,select:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}
.input-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.btn{
  display:inline-block;background:var(--accent);color:#fff;border:none;border-radius:8px;
  font-size:1rem;font-weight:600;padding:13px 26px;cursor:pointer;font-family:inherit;
}
.btn:hover{background:var(--accent-dark)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.btn-ghost{background:#fff;color:var(--accent);border:1px solid var(--accent)}

/* Results */
.result{
  margin-top:24px;border-radius:var(--radius);background:var(--accent-soft);
  border:1px solid #c9dcfa;padding:24px 26px;
}
.result[hidden]{display:none}
.result h3{font-size:1.05rem;margin-bottom:12px;letter-spacing:-0.01em}
.result-big{font-size:2rem;font-weight:700;letter-spacing:-0.02em;font-variant-numeric:tabular-nums;margin:6px 0 4px}
.result-lines{list-style:none;margin-top:10px;font-size:.95rem}
.result-lines li{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-top:1px solid #c9dcfa;font-variant-numeric:tabular-nums}
.result-lines li span:first-child{color:var(--muted)}
.result-note{margin-top:12px;font-size:.86rem;color:var(--muted)}
.result-note.warn{color:var(--danger);font-weight:600}
.swap-wrap{display:flex;justify-content:center;margin:2px 0 18px}
#swap{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:1.2rem;cursor:pointer;color:var(--accent)}
#swap:hover{border-color:var(--accent)}

/* Footer */
.site-footer{border-top:1px solid var(--line);margin-top:64px}
.site-footer .wrap{padding-top:22px;padding-bottom:26px}
.site-footer p{color:var(--faint);font-size:.86rem}

@media (max-width:720px){
  .cards{grid-template-columns:1fr}
  .hero{padding-top:40px}
  .input-row{grid-template-columns:1fr}
  .tool-card{padding:22px 20px}
  .result-big{font-size:1.6rem}
}