:root {
  --bg: #f7f4ee;
  --panel: #fffdf8;
  --ink: #242424;
  --muted: #6b706c;
  --line: #ded8cc;
  --blue: #06465a;
  --blue-soft: #dcebf0;
  --olive: #758538;
  --olive-soft: #eef2df;
  --slate: #586973;
  --shadow: 0 18px 48px rgba(36, 36, 36, .08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(6, 70, 90, .12), transparent 34rem),
    radial-gradient(circle at 100% 18%, rgba(117, 133, 56, .14), transparent 26rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 22px;
  align-items: center;
  padding: 14px 28px;
  border-bottom: 1px solid rgba(222, 216, 204, .78);
  background: rgba(247, 244, 238, .84);
  backdrop-filter: blur(12px);
}

.brand img { width: 190px; }

.nav {
  display: flex;
  justify-content: center;
  gap: 6px;
}

.nav a,
.header-action {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 8px 11px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
}

.nav a:hover,
.header-action {
  background: var(--blue-soft);
  color: var(--blue);
}

.hero,
.module-band,
.diagnostic-band,
.method-band {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 67px);
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
  gap: 28px;
  align-items: center;
  padding: 34px 0 28px;
}

.hero-logo {
  width: min(100%, 470px);
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--olive);
  font-size: 11px;
  font-weight: 950;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 680px;
  margin-bottom: 14px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: .96;
  letter-spacing: 0;
}

h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  line-height: 1.55;
}

.hero-copy p:not(.eyebrow) {
  max-width: 620px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.button-primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #fffdf8;
}

.ops-console,
.module-detail,
.diagnostic-form,
.method-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, .86);
  box-shadow: var(--shadow);
}

.ops-console {
  padding: 18px;
}

.console-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
  margin-bottom: 14px;
  padding: 16px;
  border-radius: 8px;
  background: #222523;
  color: #fffdf8;
}

.console-head span,
.console-head b,
.metric-tile span,
.metric-tile small {
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.console-head strong {
  display: block;
  margin-top: 4px;
  font-size: 22px;
}

.console-head b {
  color: #cbdc8d;
  white-space: nowrap;
}

.console-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric-tile {
  min-height: 134px;
  display: grid;
  align-content: space-between;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.metric-tile span,
.metric-tile small { color: var(--muted); }
.metric-tile strong { font-size: 30px; color: var(--blue); }

.ops-list {
  display: grid;
  gap: 9px;
  margin-top: 12px;
}

.ops-list div {
  display: grid;
  grid-template-columns: 12px minmax(120px, .7fr) minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, .72);
}

.ops-list span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--olive);
}

.ops-list strong { font-size: 14px; }
.ops-list em { color: var(--muted); font-size: 14px; font-style: normal; }

.module-band,
.diagnostic-band,
.method-band {
  padding: 72px 0;
}

.section-title {
  display: grid;
  gap: 4px;
  margin-bottom: 22px;
}

.module-layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: 16px;
}

.module-tabs {
  display: grid;
  gap: 8px;
}

.module-tab {
  min-height: 54px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  text-align: left;
  font-weight: 900;
  cursor: pointer;
}

.module-tab.is-active {
  border-color: var(--blue);
  background: var(--blue);
  color: #fffdf8;
}

.module-detail {
  min-height: 270px;
  display: grid;
  align-content: center;
  padding: 28px;
}

.module-detail h3 {
  max-width: 700px;
  font-size: 34px;
  line-height: 1.05;
}

.module-detail p {
  max-width: 760px;
  font-size: 17px;
}

.module-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.module-points span {
  padding: 8px 10px;
  border-radius: 999px;
  background: var(--olive-soft);
  color: #586629;
  font-size: 12px;
  font-weight: 900;
}

.diagnostic-band {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(420px, 1fr);
  gap: 28px;
  align-items: start;
}

.diagnostic-copy p {
  max-width: 560px;
  font-size: 17px;
}

.diagnostic-form {
  display: grid;
  gap: 14px;
  padding: 18px;
}

label,
fieldset {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 750;
}

fieldset {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

legend {
  padding: 0 7px;
  color: var(--muted);
  text-transform: uppercase;
}

fieldset label {
  grid-template-columns: 18px 1fr;
  align-items: center;
  padding: 9px;
  border-radius: 7px;
  background: rgba(6, 70, 90, .05);
}

input[type="checkbox"] { accent-color: var(--blue); }

.diagnostic-result {
  display: grid;
  gap: 5px;
  padding: 14px;
  border-radius: 8px;
  background: var(--blue-soft);
}

.diagnostic-result span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 950;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.diagnostic-result strong { font-size: 22px; }
.diagnostic-result p { margin-bottom: 0; }

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.method-grid article {
  min-height: 230px;
  display: grid;
  align-content: start;
  padding: 18px;
}

.method-grid span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 34px;
  border-radius: 8px;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 950;
}

.footer {
  width: min(1180px, calc(100% - 40px));
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin: 0 auto;
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.footer img { width: 170px; }

@media (max-width: 960px) {
  .site-header {
    position: static;
    grid-template-columns: 1fr;
  }
  .nav {
    justify-content: start;
    flex-wrap: wrap;
  }
  .hero,
  .module-layout,
  .diagnostic-band,
  .method-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    padding-top: 28px;
  }
}

@media (max-width: 640px) {
  .site-header { padding: 14px 20px; }
  .hero,
  .module-band,
  .diagnostic-band,
  .method-band,
  .footer {
    width: calc(100% - 32px);
  }
  .brand img { width: 165px; }
  .hero-logo { width: min(100%, 360px); }
  .console-grid,
  fieldset {
    grid-template-columns: 1fr;
  }
  .ops-list div {
    grid-template-columns: 12px 1fr;
  }
  .ops-list em {
    grid-column: 2;
  }
  .module-detail h3 { font-size: 27px; }
  .footer {
    display: grid;
  }
}