:root {
  --ink: #17211d;
  --muted: #5c6962;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --line: #dfe5df;
  --accent: #23745a;
  --accent-strong: #14513f;
  --warm: #f2c46d;
  --cool: #dceceb;
  --danger: #8a4b24;
  --shadow: 0 18px 48px rgba(23, 33, 29, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.94);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 14px 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px 16px;
  font-size: 0.94rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  color: var(--accent-strong);
}

main {
  min-height: 70vh;
}

.section {
  border-bottom: 1px solid var(--line);
}

.wrap {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  gap: 40px;
  align-items: center;
  padding: 54px 0 38px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
}

h1 {
  max-width: 760px;
  font-size: clamp(2.2rem, 5vw, 4.6rem);
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}

h3 {
  font-size: 1.1rem;
}

p {
  margin: 0;
}

.lead {
  max-width: 720px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.08rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-strong);
  border-radius: 7px;
  padding: 10px 16px;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 720;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--accent-strong);
}

.visual-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.visual-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
  background: var(--cool);
  font-weight: 760;
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.visual-cell {
  min-height: 122px;
  padding: 16px;
  background: #fff;
}

.visual-cell strong {
  display: block;
  margin-top: 8px;
  font-size: 1.3rem;
}

.bars {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.bar {
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--warm));
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.content-band {
  padding: 42px 0;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel);
}

.card p,
.prose p,
.prose li {
  color: var(--muted);
}

.card h3 + p,
.prose h2 + p,
.prose h3 + p {
  margin-top: 10px;
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 28px;
  align-items: start;
  padding: 38px 0;
}

.tool-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.tool-panel > * {
  padding: 20px;
}

.tool-panel > * + * {
  border-top: 1px solid var(--line);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 700;
}

input[type="number"] {
  width: 100%;
  min-height: 44px;
  border: 1px solid #cbd4cd;
  border-radius: 7px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

input[type="number"]:focus,
input[type="checkbox"]:focus {
  outline: 3px solid rgba(35, 116, 90, 0.22);
  outline-offset: 2px;
}

.result {
  display: grid;
  gap: 10px;
  border-left: 5px solid var(--accent);
  background: #f3faf7;
}

.result strong {
  font-size: 1.8rem;
}

.note,
.warning {
  border-radius: 8px;
  padding: 16px;
}

.note {
  border: 1px solid #c9ded6;
  background: #f2faf6;
}

.warning {
  border: 1px solid #e5c6aa;
  background: #fff6ed;
  color: var(--danger);
}

.checklist {
  display: grid;
  gap: 10px;
}

.check-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.check-item span {
  color: var(--muted);
  font-weight: 500;
}

.progress {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: #e7ece8;
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-strong), var(--warm));
}

.prose {
  max-width: 860px;
  padding: 40px 0;
}

.prose h2,
.prose h3 {
  margin-top: 30px;
}

.prose ul {
  padding-left: 22px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: start;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

@media (max-width: 860px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero,
  .tool-layout,
  .grid.four,
  .grid.three,
  .grid.two,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .visual-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .wrap {
    width: min(100% - 28px, 1160px);
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}