:root {
  color-scheme: dark;
  --bg: #0d1020;
  --bg-2: #12182c;
  --surface: #18213a;
  --surface-2: #202b47;
  --text: #f4f7fb;
  --muted: #aab6cc;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #52d6b5;
  --accent-2: #7aa7ff;
  --accent-3: #f2c36b;
  --danger: #ff7a90;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius: 8px;
  --header-height: 76px;
}

body.light-theme {
  color-scheme: light;
  --bg: #f6f8fb;
  --bg-2: #edf2f7;
  --surface: #ffffff;
  --surface-2: #e8eef7;
  --text: #182033;
  --muted: #5d6a7f;
  --line: rgba(24, 32, 51, 0.14);
  --accent: #087f68;
  --accent-2: #315fca;
  --accent-3: #b46b00;
  --danger: #bd2f48;
  --shadow: 0 24px 70px rgba(35, 46, 72, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top left, rgba(82, 214, 181, 0.14), transparent 32rem),
    radial-gradient(circle at top right, rgba(122, 167, 255, 0.16), transparent 34rem),
    linear-gradient(145deg, var(--bg), var(--bg-2));
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

button,
select,
textarea {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

textarea,
select {
  color: var(--text);
  background: color-mix(in srgb, var(--surface-2) 82%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

textarea:focus,
select:focus,
button:focus-visible,
a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 50%, transparent);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #061219;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(82, 214, 181, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  color: var(--muted);
  font-size: 0.94rem;
}

.nav-links a {
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
  border-color: var(--accent);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 42px;
  padding: 0.55rem 0.8rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.sun-icon {
  position: relative;
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent-3);
  border-radius: 50%;
}

.sun-icon::after {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--accent-3);
  border-radius: inherit;
}

.section-band {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.hero {
  min-height: calc(100svh - var(--header-height));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding-top: clamp(2.5rem, 6vw, 5rem);
}

.hero-copy {
  max-width: 700px;
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 8vw, 6.7rem);
}

h2 {
  max-width: 16ch;
  font-size: clamp(2rem, 4.8vw, 4rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.hero-lede,
.section-heading p,
.intro-grid p {
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
}

.hero-lede {
  max-width: 66ch;
  margin: 1.35rem 0 0;
}

.hero-actions,
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover,
.filter-chip:hover,
.roadmap-step:hover,
.theme-toggle:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #061219;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  box-shadow: 0 18px 44px rgba(82, 214, 181, 0.2);
}

.button.secondary {
  color: var(--text);
  background: var(--surface);
  border-color: var(--line);
}

.full-width {
  width: 100%;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: 560px;
  margin-top: 2rem;
}

.hero-stats div,
.capability-card,
.roadmap-detail,
.api-console,
.project-card,
.workflow-grid article {
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-stats div {
  padding: 1rem;
}

.hero-stats strong {
  display: block;
  color: var(--accent-3);
  font-size: 1.7rem;
  line-height: 1;
}

.hero-stats span {
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-visual {
  position: relative;
  min-height: 540px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--surface) 78%, transparent), color-mix(in srgb, var(--surface-2) 70%, transparent)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 42px);
  box-shadow: var(--shadow);
}

#stackCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.system-panel {
  position: absolute;
  width: min(260px, 56%);
  padding: 1rem;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

.system-panel span {
  display: block;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.system-panel strong {
  display: block;
  margin-top: 0.35rem;
}

.panel-front {
  top: 12%;
  left: 8%;
}

.panel-back {
  top: 40%;
  right: 8%;
}

.panel-data {
  bottom: 12%;
  left: 14%;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro-grid p {
  margin: 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.9fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: end;
  margin-bottom: 2rem;
}

.section-heading.compact {
  display: block;
  max-width: 780px;
}

.section-heading p {
  margin: 0;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
}

.filter-chip {
  min-height: 42px;
  padding: 0.65rem 0.95rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.filter-chip.active {
  color: #061219;
  background: var(--accent);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.capability-card {
  min-height: 310px;
  padding: 1.15rem;
  transition: transform 180ms ease, opacity 180ms ease, border-color 180ms ease;
}

.capability-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
}

.capability-card.hidden {
  display: none;
}

.card-icon {
  display: inline-grid;
  min-width: 48px;
  height: 34px;
  place-items: center;
  margin-bottom: 1rem;
  padding: 0 0.5rem;
  color: #061219;
  background: var(--accent-3);
  border-radius: var(--radius);
  font-size: 0.76rem;
  font-weight: 900;
}

.capability-card p {
  color: var(--muted);
}

.capability-card ul {
  display: grid;
  gap: 0.45rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.capability-card li {
  position: relative;
  padding-left: 1.2rem;
  color: var(--text);
  font-size: 0.93rem;
}

.capability-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
}

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

.roadmap-shell {
  display: grid;
  grid-template-columns: minmax(230px, 0.45fr) minmax(0, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.roadmap-steps {
  display: grid;
  gap: 0.65rem;
}

.roadmap-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 58px;
  padding: 0.7rem;
  color: var(--text);
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.roadmap-step span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #061219;
  background: var(--surface-2);
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 900;
}

.roadmap-step.active {
  background: color-mix(in srgb, var(--accent-2) 28%, var(--surface));
  border-color: color-mix(in srgb, var(--accent-2) 70%, var(--line));
}

.roadmap-step.active span {
  background: var(--accent);
}

.roadmap-detail {
  min-height: 390px;
  padding: clamp(1.25rem, 4vw, 2rem);
}

.roadmap-detail p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.08rem;
}

.progress-track {
  width: 100%;
  height: 10px;
  margin-bottom: 2rem;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}

.progress-track span {
  display: block;
  width: 16.6%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  border-radius: inherit;
  transition: width 220ms ease;
}

.mini-checklist {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.mini-checklist span {
  padding: 0.8rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
}

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

.api-console {
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
}

.request-panel {
  display: grid;
  align-content: start;
  gap: 0.8rem;
}

label {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

select {
  min-height: 46px;
  padding: 0 0.8rem;
}

textarea {
  width: 100%;
  padding: 0.9rem;
  resize: vertical;
  min-height: 190px;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

.response-panel {
  min-width: 0;
  background: #071019;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
}

body.light-theme .response-panel {
  background: #101827;
}

.console-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  color: #dce8f7;
  background: rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.status-pill {
  color: #061219;
  background: var(--accent);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
  font-weight: 900;
}

pre {
  min-height: 350px;
  margin: 0;
  padding: 1rem;
  color: #dce8f7;
  overflow: auto;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.project-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
}

.project-section .section-heading {
  margin: 0;
}

.generator {
  display: grid;
  gap: 1rem;
}

.generator-controls {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) auto;
  gap: 0.8rem;
  align-items: end;
  padding: 1rem;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.generator-controls label {
  grid-column: 1 / -1;
}

.project-card {
  min-height: 300px;
  padding: clamp(1.25rem, 4vw, 2rem);
}

.project-tag {
  display: inline-flex;
  margin-bottom: 1rem;
  padding: 0.35rem 0.65rem;
  color: #061219;
  background: var(--accent);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 900;
}

.project-card p {
  color: var(--muted);
  font-size: 1.06rem;
}

.stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.stack-list span {
  padding: 0.5rem 0.65rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 800;
}

.build-board {
  border-top: 1px solid var(--line);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.workflow-grid article {
  padding: 1.1rem;
}

.workflow-grid span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  margin-bottom: 1rem;
  color: #061219;
  background: var(--accent-2);
  border-radius: var(--radius);
  font-weight: 900;
}

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

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer a {
  color: var(--accent);
  font-weight: 800;
}

@media (max-width: 980px) {
  .hero,
  .intro-grid,
  .section-heading,
  .roadmap-shell,
  .api-console,
  .project-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 460px;
  }

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

  .project-section .section-heading {
    max-width: none;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: relative;
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  h1 {
    max-width: 10ch;
  }

  .hero-stats,
  .capability-grid,
  .mini-checklist,
  .workflow-grid,
  .generator-controls {
    grid-template-columns: 1fr;
  }

  .system-panel {
    width: min(245px, 72%);
  }

  .panel-front {
    left: 5%;
  }

  .panel-back {
    right: 5%;
  }

  .panel-data {
    left: 8%;
  }

  .api-console {
    padding: 0.75rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

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