:root {
  color-scheme: light;
  --bg: #f5f6f2;
  --surface: #ffffff;
  --surface-2: #e8f0ed;
  --ink: #171a18;
  --muted: #5d6761;
  --line: #d7ded8;
  --teal: #0b7f79;
  --coral: #d7574f;
  --gold: #c58a12;
  --blue: #2d65b7;
  --green: #2f7d46;
  --violet: #7153b8;
  --shadow: 0 20px 60px rgba(22, 28, 25, 0.12);
  --radius: 8px;
  --max: 1180px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101412;
  --surface: #171d1a;
  --surface-2: #202924;
  --ink: #f2f6f0;
  --muted: #adb8b0;
  --line: #303b35;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

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

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 70px;
  padding: 14px clamp(16px, 4vw, 48px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--surface);
  font-size: 0.94rem;
  box-shadow: 4px 4px 0 var(--teal);
}

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

.main-nav a {
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: var(--surface);
  color: var(--ink);
  outline: none;
}

.icon-button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.icon-button:hover,
.icon-button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--teal);
  outline: none;
}

.icon-button svg {
  width: 19px;
  height: 19px;
}

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: calc(100svh - 70px);
  align-content: center;
  overflow: hidden;
  padding: clamp(88px, 12vh, 136px) clamp(18px, 5vw, 72px) 0;
}

#heroMap {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  background: var(--bg);
}

.hero-content {
  width: min(790px, 100%);
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 12ch;
  margin: 0 auto;
  font-size: 5.8rem;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 760px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 8px;
  padding: 12px 16px;
  font-weight: 850;
}

.primary-action {
  gap: 10px;
  background: var(--ink);
  color: var(--bg);
}

.primary-action svg {
  width: 18px;
  height: 18px;
}

.secondary-action {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(var(--max), 100%);
  margin: clamp(48px, 8vh, 78px) auto 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px 8px 0 0;
  background: var(--line);
  box-shadow: var(--shadow);
}

.signal-strip div {
  min-width: 0;
  padding: 18px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
}

.signal-strip dt {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.signal-strip dd {
  margin: 7px 0 0;
  font-weight: 750;
}

.section {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(76px, 10vw, 118px) 0;
}

.section-heading {
  display: grid;
  gap: 10px;
  max-width: 740px;
  margin-bottom: 30px;
}

.section-heading h2 {
  margin: 0;
  font-size: 3.6rem;
  line-height: 1;
  letter-spacing: 0;
}

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

.feature-card,
.tool-card,
.limits-panel,
.brief-output,
.brief-controls {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(16, 20, 18, 0.06);
}

.feature-card {
  position: relative;
  min-height: 236px;
  padding: 24px;
  overflow: hidden;
}

.feature-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--accent);
  content: "";
}

.feature-card svg {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.feature-card h3,
.tool-card h3,
.flow-list h3,
.limits-panel h3 {
  margin: 18px 0 8px;
  font-size: 1.1rem;
  letter-spacing: 0;
}

.feature-card p,
.tool-card p,
.flow-list p,
.limits-panel li {
  margin: 0;
  color: var(--muted);
}

.accent-teal {
  --accent: var(--teal);
}

.accent-coral {
  --accent: var(--coral);
}

.accent-gold {
  --accent: var(--gold);
}

.accent-blue {
  --accent: var(--blue);
}

.accent-green {
  --accent: var(--green);
}

.accent-violet {
  --accent: var(--violet);
}

.tools-section {
  width: 100%;
  max-width: none;
  padding-inline: max(18px, calc((100vw - var(--max)) / 2));
  background: var(--surface-2);
}

.tool-layout {
  display: grid;
  gap: 18px;
}

.segmented-control {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
}

.segment {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  padding: 9px 13px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 800;
}

.segment.active,
.segment:hover,
.segment:focus-visible {
  background: var(--surface);
  color: var(--ink);
  outline: none;
}

.tool-card {
  display: grid;
  align-content: start;
  min-height: 194px;
  padding: 20px;
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.tool-card.is-hidden {
  display: none;
}

.tool-token {
  justify-self: start;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 9px;
  background: var(--surface-2);
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 900;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.58fr);
  gap: 24px;
  align-items: start;
}

.split-section .section-heading {
  grid-column: 1 / -1;
  margin-bottom: 6px;
}

.flow-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-list li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.flow-list span {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 900;
}

.flow-list h3 {
  margin-top: 0;
}

.limits-panel {
  position: sticky;
  top: 92px;
  padding: 24px;
}

.limits-panel h3 {
  margin-top: 0;
}

.limits-panel ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 20px;
}

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

.brief-builder {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 16px;
}

.brief-controls {
  display: grid;
  gap: 18px;
  padding: 20px;
}

fieldset {
  display: grid;
  gap: 10px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 8px;
  font-weight: 900;
}

label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  color: var(--muted);
  font-weight: 750;
}

input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--teal);
}

.brief-output {
  display: grid;
  align-content: space-between;
  min-height: 312px;
  padding: 22px;
}

.output-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

#briefText {
  margin: 30px 0;
  font-size: 1.82rem;
  font-weight: 850;
  line-height: 1.22;
}

.copy-state {
  min-height: 24px;
  margin: 0;
  color: var(--teal);
  font-weight: 800;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 28px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .main-nav {
    order: 3;
    width: 100%;
    flex: 0 0 100%;
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
    padding-top: 72px;
  }

  h1 {
    max-width: 10ch;
    font-size: 4.2rem;
  }

  .signal-strip,
  .capability-grid,
  .tool-grid,
  .split-section,
  .brief-builder {
    grid-template-columns: 1fr;
  }

  .limits-panel {
    position: static;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-inline: 14px;
  }

  .brand span:last-child {
    max-width: 118px;
    line-height: 1.1;
  }

  .main-nav a {
    padding-inline: 9px;
    font-size: 0.85rem;
  }

  .main-nav {
    justify-content: space-between;
  }

  .hero {
    padding-inline: 16px;
  }

  .hero-actions a {
    width: 100%;
  }

  .section {
    width: min(100% - 28px, var(--max));
  }

  h1 {
    font-size: 3.08rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .section-heading h2 {
    font-size: 2.32rem;
  }

  #briefText {
    font-size: 1.28rem;
  }

  .feature-card,
  .tool-card,
  .flow-list li,
  .limits-panel,
  .brief-output,
  .brief-controls {
    padding: 18px;
  }

  .flow-list li {
    grid-template-columns: 1fr;
  }

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

  .segment {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}