:root {
  --bg: #f6f7f4;
  --card: #ffffff;
  --text: #20221f;
  --muted: #62685f;
  --line: #dde2d8;
  --primary: #256f5b;
  --primary-dark: #195041;
  --accent: #b05a2c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.brand {
  font-weight: 800;
  color: var(--primary-dark);
  text-decoration: none;
}

nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
}

.container {
  width: min(1040px, 100%);
  margin: 0 auto;
  padding: 22px 16px 40px;
}

.hero {
  padding: 34px 0 26px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 8px;
}

h1 {
  font-size: clamp(30px, 8vw, 56px);
  line-height: 1.08;
  margin: 0 0 14px;
  letter-spacing: 0;
}

h2 {
  font-size: 20px;
  margin: 0 0 8px;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 0;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.btn,
button {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}

.btn.primary,
button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  box-shadow: 0 8px 18px rgba(37,111,91,.18);
}

.btn:hover,
button:hover {
  border-color: var(--primary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.quick-calculator {
  margin: 4px 0 18px;
  border-color: rgba(37,111,91,.28);
  box-shadow: 0 10px 26px rgba(25,80,65,.08);
}

.section-title {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-end;
  margin-bottom: 12px;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  max-width: 520px;
}

.link-card {
  text-decoration: none;
}

.link-card p,
.page-head p,
.note {
  color: var(--muted);
}

.warning-note {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #7c2d12;
  border-radius: 8px;
  padding: 10px 12px;
}

.page-head {
  margin-bottom: 16px;
}

.page-head h1 {
  font-size: clamp(28px, 7vw, 42px);
}

.form {
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.form-grid.compact {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px;
  font: inherit;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.result-card {
  background: var(--primary-dark);
  color: white;
  border-radius: 8px;
  padding: 16px;
}

.result-card span {
  display: block;
  opacity: .8;
  font-size: 14px;
}

.result-card strong {
  display: block;
  font-size: 24px;
  margin-top: 4px;
}

.quick-results {
  margin-top: 18px;
}

.recent-cases {
  margin: 22px 0 18px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}

.case-card {
  display: grid;
  gap: 10px;
}

.case-label {
  width: fit-content;
  background: #eef7f3;
  color: var(--primary-dark);
  border: 1px solid #cfe5dc;
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 13px;
  font-weight: 800;
}

.case-card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
}

.case-card dl {
  margin: 0;
  display: grid;
  gap: 8px;
}

.case-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 7px;
}

.case-card dt {
  color: var(--muted);
}

.case-card dd {
  margin: 0;
  font-weight: 800;
  text-align: right;
}

.case-card .total {
  border-bottom: 0;
  background: #f6faf8;
  border-radius: 8px;
  padding: 9px 10px;
}

.case-card .total dd {
  color: var(--primary-dark);
}

.case-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.checklist {
  display: grid;
  gap: 12px;
}

.checklist label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 500;
}

.checklist input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.word-list {
  display: grid;
  gap: 12px;
}

.word-card {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 1fr;
  gap: 12px;
}

.word-card p {
  margin: 0;
  color: var(--muted);
}

.table-card {
  margin-top: 16px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 10px 8px;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 13px;
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 18px 16px 30px;
  text-align: center;
  font-size: 13px;
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
  }
  nav a {
    padding: 3px 0;
  }
  .word-card {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 24px;
  }
  .actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .btn,
  button {
    width: 100%;
    min-height: 52px;
    font-size: 16px;
  }
  .btn.primary {
    font-size: 17px;
  }
  .section-title {
    display: block;
  }
  .section-title p {
    margin-top: 4px;
  }
  .form-grid.compact {
    grid-template-columns: 1fr;
  }
  .quick-calculator {
    padding: 14px;
  }
  .result-card strong {
    font-size: 22px;
  }
  .case-grid {
    grid-template-columns: 1fr;
  }
  .case-card dl div {
    align-items: flex-start;
  }
}