:root {
  --bg: #f7f6f2;
  --surface: #ffffff;
  --surface-soft: #f0f1ed;
  --ink: #202827;
  --muted: #697371;
  --line: #dfe2dc;
  --primary: #164b50;
  --primary-soft: #e8f0ef;
  --accent: #85643a;
  --danger: #a0493e;
  --shadow: 0 18px 48px rgba(32, 40, 39, 0.07);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(232, 240, 239, 0.5), transparent 380px),
    var(--bg);
  color: var(--ink);
  font-family: Aptos, "Segoe UI", sans-serif;
  line-height: 1.55;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  width: min(1060px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.62fr);
  gap: 18px;
  align-items: stretch;
  padding: 42px 0 20px;
}

.hero > div,
.hero-card,
.panel,
.case-study {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.hero > div {
  padding: clamp(26px, 5vw, 52px);
}

.hero-card {
  padding: 24px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.65rem, 7vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.08;
}

h3 {
  margin-bottom: 9px;
  font-size: 1rem;
}

.subtitle {
  max-width: 740px;
  margin-bottom: 14px;
  color: #33413f;
  font-size: clamp(1.05rem, 2vw, 1.24rem);
}

.intro-copy,
.section-heading p,
.small-note,
.report-card p,
.case-grid p,
.footer {
  color: var(--muted);
}

.button-row,
.controls,
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 7px;
  padding: 0 16px;
  font-weight: 780;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

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

.button.secondary {
  border-color: rgba(22, 75, 80, 0.28);
  background: var(--primary-soft);
  color: var(--primary);
}

.button.ghost {
  background: transparent;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  width: fit-content;
  margin-bottom: 16px;
  border: 1px solid rgba(22, 75, 80, 0.24);
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  padding: 0 10px;
  font-size: 0.76rem;
  font-weight: 850;
}

.badge-row .status-badge {
  margin-bottom: 0;
}

.status-badge.muted {
  margin-bottom: 0;
  color: var(--muted);
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.compact-steps {
  display: grid;
  gap: 12px;
  margin: 16px 0 18px;
}

.steps li {
  display: flex;
  gap: 12px;
  align-items: center;
}

.steps span {
  display: inline-grid;
  flex: 0 0 30px;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: 999px;
  color: var(--primary);
  font-weight: 850;
}

.steps p {
  margin: 0;
  font-weight: 750;
}

.panel,
.case-study {
  margin: 18px 0;
  padding: clamp(20px, 3.5vw, 34px);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 22px;
}

.demo-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid rgba(22, 75, 80, 0.18);
  background: var(--primary-soft);
  border-radius: var(--radius);
}

.demo-strip p {
  margin: 4px 0 0;
  color: var(--muted);
}

.demo-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
}

.demo-option {
  min-height: 36px;
  border: 1px solid var(--line);
  background: #fbfbf8;
  color: var(--muted);
  border-radius: 7px;
  padding: 0 12px;
  font-weight: 800;
}

.demo-option.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.inline-heading {
  display: flex;
  max-width: none;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

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

.field-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  background: #fbfbf8;
  border-radius: var(--radius);
}

.step-label {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #344341;
  font-weight: 850;
}

.step-label b {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.84rem;
}

textarea,
input {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 7px;
  padding: 12px;
  outline: none;
}

textarea {
  resize: vertical;
}

textarea:focus,
input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 75, 80, 0.12);
}

input[readonly] {
  background: var(--surface-soft);
  color: #45514f;
  cursor: default;
}

.input-error {
  border-color: var(--danger);
  background: #fff8f6;
}

.controls {
  align-items: flex-end;
  gap: 8px;
  margin-top: 14px;
}

.target-field {
  display: grid;
  flex: 0 1 230px;
  gap: 6px;
}

.target-field span {
  color: #344341;
  font-size: 0.88rem;
  font-weight: 800;
}

.validation-message {
  min-height: 24px;
  margin: 10px 0 0;
  color: var(--danger);
  font-weight: 760;
}

.snapshot-grid {
  display: grid;
  grid-template-columns: 0.85fr 1fr 1fr;
  gap: 14px;
}

.score-card,
.report-card,
.output-card,
.case-grid article {
  border: 1px solid var(--line);
  background: #fbfbf8;
  border-radius: var(--radius);
}

.score-card {
  display: grid;
  place-items: center;
  align-content: center;
  min-height: 235px;
  padding: 22px;
  text-align: center;
}

.score-ring {
  display: grid;
  place-items: center;
  width: 148px;
  height: 148px;
  margin-bottom: 14px;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fbfbf8 58%, transparent 59%),
    conic-gradient(var(--primary) calc(var(--score) * 1%), #dfe3de 0);
}

.score-ring strong {
  font-size: 2.75rem;
  line-height: 1;
}

.score-ring span {
  margin-top: -36px;
  color: var(--muted);
  font-size: 0.82rem;
}

.score-card p {
  margin-bottom: 0;
  font-weight: 850;
}

.report-card {
  padding: 18px;
}

.report-card.wide {
  grid-column: span 2;
}

.logic-note {
  margin: 14px 0 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  border-radius: var(--radius);
  font-size: 0.93rem;
}

ul {
  margin: 0;
  padding-left: 18px;
}

li + li {
  margin-top: 7px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list span {
  display: inline-flex;
  border: 1px solid #d9ccbd;
  background: #fbf6ed;
  color: #5e4425;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.84rem;
  font-weight: 780;
}

.tabs {
  margin-bottom: 10px;
  overflow-x: auto;
}

.tab {
  flex: 0 0 auto;
  min-height: 38px;
  border: 1px solid var(--line);
  background: #fbfbf8;
  color: var(--muted);
  border-radius: 7px;
  padding: 0 13px;
  font-weight: 850;
}

.tab.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.output-card {
  padding: 20px;
}

.output-content {
  color: #344341;
  white-space: pre-wrap;
}

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

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

.case-grid article,
.future-grid article {
  border: 1px solid var(--line);
  background: #fbfbf8;
  border-radius: var(--radius);
  padding: 18px;
}

.future-grid p {
  color: var(--muted);
}

.future-card {
  grid-column: 1 / -1;
}

.footer {
  width: min(1060px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0 34px;
  text-align: center;
}

@media (max-width: 820px) {
  .hero,
  .input-grid,
  .snapshot-grid,
  .case-grid,
  .future-grid {
    grid-template-columns: 1fr;
  }

  .inline-heading {
    flex-direction: column;
  }

  .demo-strip {
    align-items: stretch;
    flex-direction: column;
  }

  .report-card.wide {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .app-shell,
  .footer {
    width: min(100% - 24px, 1060px);
  }

  .button,
  .target-field {
    width: 100%;
  }

  .hero {
    padding-top: 18px;
  }
}