:root {
  --bg: #f4efe6;
  --paper: #fffdf8;
  --ink: #1c1915;
  --muted: #5e574c;
  --line: #d9d0c2;
  --accent: #b4451a;
  --accent-dark: #8c3010;
  --ok: #1f6b3a;
  --warn: #8a5a12;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

a { color: var(--accent-dark); }
a:hover { color: var(--accent); }

.wrap { width: min(1040px, calc(100% - 32px)); margin: 0 auto; }

.site-header, .site-footer {
  border-bottom: 1px solid var(--line);
}
.site-footer { border-bottom: 0; border-top: 1px solid var(--line); margin-top: 64px; }

.site-header .wrap, .site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.logo {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.25rem;
}

nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--muted); font-size: 0.95rem; }
nav a:hover { color: var(--ink); }

h1, h2, h3 { font-family: Georgia, "Times New Roman", serif; letter-spacing: -0.03em; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); margin: 0 0 12px; }
h2 { font-size: 1.45rem; margin: 36px 0 12px; }
h3 { font-size: 1.1rem; margin: 0 0 8px; }

.hero { padding: 56px 0 28px; }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 38rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin: 28px 0 48px;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 18px 16px;
  text-decoration: none;
  color: inherit;
  display: block;
}
.card:hover { border-color: #c4b7a3; }
.card .kicker { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
  margin: 24px 0 40px;
}

label { display: block; font-size: 0.9rem; margin: 0 0 6px; color: var(--muted); }
input[type="number"], select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  background: #fff;
  margin-bottom: 14px;
}
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; margin: 0 0 14px; color: var(--ink); }
.check input { margin: 0; }

.stat { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.stat:last-child { border-bottom: 0; }
.stat b { font-variant-numeric: tabular-nums; }
.total { font-size: 1.15rem; margin-top: 8px; }
.keep { color: var(--ok); }
.note { font-size: 0.9rem; color: var(--muted); }

.faq details {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  margin: 0 0 10px;
}
.faq summary { cursor: pointer; font-weight: 600; }

.muted { color: var(--muted); }
.tiny { font-size: 0.85rem; color: var(--muted); }

@media (max-width: 800px) {
  .tool-layout, .row-2 { grid-template-columns: 1fr; }
  .site-header .wrap, .site-footer .wrap { flex-direction: column; align-items: flex-start; }
}