:root {
  --bg: #f7f8f3;
  --card: #ffffff;
  --ink: #17221f;
  --muted: #65706b;
  --line: #d9dfd7;
  --solar: #f2b705;
  --leaf: #1f7a5c;
  --deep: #12362c;
  --warn: #9a4d12;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  background:
    linear-gradient(180deg, #fbfcf7 0%, var(--bg) 42%, #eff3ea 100%);
  color: var(--ink);
  margin: 0;
}

a {
  color: inherit;
}

.shell {
  display: grid;
  gap: 18px;
  margin: 0 auto;
  max-width: 1180px;
  padding: 24px;
}

.hero,
.notice-strip,
.panel,
.ops-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(18, 54, 44, 0.08);
}

.hero {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 480px);
  min-height: 520px;
  overflow: hidden;
  padding: clamp(24px, 5vw, 54px);
}

.hero-copy {
  align-content: center;
  display: grid;
  gap: 18px;
}

.eyebrow {
  color: var(--leaf);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  margin: 0;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(2.3rem, 6vw, 5.3rem);
  line-height: 0.96;
  max-width: 780px;
}

h2 {
  font-size: 1.45rem;
}

h3 {
  font-size: 1rem;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.button-row,
.output-head,
.fineprint,
.notice-strip {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.button-row {
  flex-wrap: wrap;
  justify-content: flex-start;
}

.primary,
.secondary,
button {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  text-decoration: none;
}

.primary,
button.primary {
  background: var(--deep);
  border: 1px solid var(--deep);
  color: #fff;
}

.secondary,
button {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--deep);
}

.solar-board {
  align-self: center;
  background:
    linear-gradient(160deg, rgba(18, 54, 44, 0.9), rgba(31, 122, 92, 0.92)),
    linear-gradient(45deg, #dce7e0, #f3d169);
  color: #f8fbf6;
  display: grid;
  gap: 18px;
  min-height: 420px;
  padding: 24px;
}

.roof-card,
.permit-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  padding: 16px;
}

.roof-card {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.roof-card span {
  aspect-ratio: 1.45;
  background: linear-gradient(135deg, #1a4d3f, #f2b705);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
}

.roof-card strong {
  grid-column: 1 / -1;
}

.line-diagram {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: 64px 1fr 64px 1fr 64px;
}

.line-diagram span {
  background: #f8fbf6;
  border-radius: 8px;
  color: var(--deep);
  display: grid;
  font-weight: 900;
  min-height: 48px;
  place-items: center;
}

.line-diagram i {
  background: var(--solar);
  height: 3px;
}

.permit-card p {
  color: #f7d66b;
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.notice-strip {
  padding: 18px;
}

.notice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(300px, 430px) minmax(0, 1fr);
}

.panel {
  padding: 18px;
}

.controls {
  align-content: start;
  display: grid;
  gap: 14px;
}

label,
fieldset {
  color: var(--deep);
  display: grid;
  font-size: 0.9rem;
  font-weight: 800;
  gap: 7px;
}

fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

fieldset label {
  align-items: center;
  display: flex;
  font-weight: 700;
}

input,
select,
textarea {
  background: #fbfcf8;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font: inherit;
  min-height: 42px;
  padding: 10px;
  width: 100%;
}

textarea {
  resize: vertical;
}

.output {
  display: grid;
  gap: 16px;
}

.output article {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  padding-top: 14px;
}

pre {
  background: #f3f6ef;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #1f2f2a;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.55;
  margin: 0;
  overflow: auto;
  padding: 14px;
  white-space: pre-wrap;
}

.fineprint {
  border-top: 1px solid var(--line);
  color: var(--muted);
  flex-wrap: wrap;
  font-size: 0.82rem;
  padding-top: 12px;
}

.fineprint a {
  margin-left: 10px;
}

.seo-page {
  max-width: 860px;
}

.seo-page h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

.seo-page ul {
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
  padding-left: 20px;
}

@media (max-width: 860px) {
  .shell {
    padding: 14px;
  }

  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .notice-strip,
  .output-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .notice-actions {
    justify-content: flex-start;
  }
}