:root {
  color-scheme: dark;
  --bg: #10110f;
  --surface: #171915;
  --surface-raised: #1d201b;
  --text: #f1f0e7;
  --muted: #a7aa9f;
  --faint: #6f746a;
  --line: rgba(241, 240, 231, 0.14);
  --line-strong: rgba(241, 240, 231, 0.28);
  --accent: #b8f35d;
  --accent-ink: #11150a;
  --blue: #80bfff;
  --orange: #f5a95b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  --max-width: 1180px;
  --radius: 22px;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f1e8;
  --surface: #e9e7dd;
  --surface-raised: #fcfbf6;
  --text: #171915;
  --muted: #5f645b;
  --faint: #81867b;
  --line: rgba(23, 25, 21, 0.13);
  --line-strong: rgba(23, 25, 21, 0.25);
  --accent: #5b7f16;
  --accent-ink: #f8faef;
  --blue: #2671b8;
  --orange: #b66418;
  --shadow: 0 24px 70px rgba(71, 64, 46, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 75% 8%, rgba(184, 243, 93, 0.07), transparent 27rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  transition: background-color 180ms ease, color 180ms ease;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.13;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 50;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
main,
.site-footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 62px;
  margin-top: 16px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 9px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
}

.main-nav {
  display: flex;
  gap: 6px;
}

.main-nav a,
.theme-toggle {
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.main-nav a {
  padding: 8px 11px;
}

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

.theme-toggle {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.theme-icon {
  width: 9px;
  height: 9px;
  border: 2px solid currentColor;
  border-radius: 50%;
  box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 18%, transparent);
}

.hero {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
  min-height: calc(100vh - 96px);
  padding: 90px 0 70px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.principles h2 {
  margin: 0;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(3.6rem, 7.6vw, 7.4rem);
  font-weight: 650;
}

.hero-text {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 700;
  transition: transform 140ms ease, background-color 140ms ease, border-color 140ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

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

.signal-panel {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(145deg, var(--surface-raised), var(--surface));
  box-shadow: var(--shadow);
  isolation: isolate;
}

.signal-grid {
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 0, transparent 72%);
}

.signal-panel::after {
  position: absolute;
  inset: 12%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 243, 93, 0.12), transparent 68%);
  content: "";
}

.signal-orbit {
  position: absolute;
  left: 50%;
  top: 46%;
  border: 1px solid var(--line);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-12deg);
}

.signal-orbit-a {
  width: 66%;
  aspect-ratio: 1;
}

.signal-orbit-b {
  width: 88%;
  aspect-ratio: 1;
  border-style: dashed;
  animation: orbit-spin 26s linear infinite;
}

.signal-node {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-raised) 84%, transparent);
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.13);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}

.signal-node-main {
  left: 50%;
  top: 46%;
  gap: 9px;
  min-height: 48px;
  padding: 0 18px;
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  transform: translate(-50%, -50%);
  font-weight: 700;
}

.signal-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(184, 243, 93, 0.45);
  animation: pulse 2.4s ease-out infinite;
}

.signal-node-project {
  left: 12%;
  top: 25%;
}

.signal-node-note {
  right: 10%;
  top: 33%;
}

.signal-node-idea {
  left: 25%;
  bottom: 20%;
}

.signal-caption {
  position: absolute;
  right: 26px;
  bottom: 20px;
  left: 26px;
  margin: 0;
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  text-align: center;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 130px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.status-strip > div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 54px;
  border-right: 1px solid var(--line);
}

.status-strip > div:last-child {
  border-right: 0;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.section {
  padding: 30px 0 140px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(240px, 0.6fr);
  column-gap: 70px;
  align-items: end;
  margin-bottom: 52px;
}

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

.section-heading h2,
.principles h2 {
  font-size: clamp(2.5rem, 5vw, 5rem);
  font-weight: 620;
}

.section-heading > p:last-child {
  margin: 0;
  color: var(--muted);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  display: flex;
  min-height: 510px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.project-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}

.project-card-featured {
  grid-row: span 2;
  min-height: 740px;
}

.card-topline,
.card-links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
}

.card-index,
.status-tag,
.card-links,
.idea-state,
.idea-footer {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.68rem;
}

.card-index {
  color: var(--faint);
}

.status-tag {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}

.status-active {
  border-color: color-mix(in srgb, var(--accent) 42%, transparent);
  color: var(--accent);
}

.status-archive {
  color: var(--orange);
}

.project-visual {
  position: relative;
  flex: 1;
  min-height: 210px;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface-raised);
}

.visual-console {
  display: flex;
  min-height: 390px;
  flex-direction: column;
  justify-content: center;
  padding: 12%;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(0.9rem, 2vw, 1.35rem);
}

.console-line {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.72em;
}

.console-cursor {
  margin-top: 6px;
  animation: blink 1s step-end infinite;
}

.visual-browser {
  display: grid;
  width: 74%;
  min-height: 190px;
  margin: 32px auto;
  grid-template-rows: 32px 1fr;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 11px;
  border-bottom: 1px solid var(--line);
}

.browser-bar i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--faint);
}

.browser-content {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 24px;
}

.browser-content span {
  height: 8px;
  border-radius: 4px;
  background: var(--line-strong);
}

.browser-content span:nth-child(1) {
  width: 46%;
  height: 15px;
  background: color-mix(in srgb, var(--accent) 70%, var(--surface));
}

.browser-content span:nth-child(2) {
  width: 88%;
}

.browser-content span:nth-child(3) {
  width: 64%;
}

.visual-map {
  min-height: 215px;
}

.map-node,
.map-line {
  position: absolute;
}

.map-node {
  z-index: 2;
  width: 23px;
  height: 23px;
  border: 5px solid var(--surface-raised);
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 1px var(--line-strong);
}

.map-a {
  left: 20%;
  top: 55%;
}

.map-b {
  left: 48%;
  top: 28%;
  background: var(--accent);
}

.map-c {
  right: 18%;
  bottom: 22%;
  background: var(--orange);
}

.map-line {
  height: 1px;
  background: var(--line-strong);
  transform-origin: left center;
}

.line-a {
  left: 23%;
  top: 57%;
  width: 35%;
  transform: rotate(-35deg);
}

.line-b {
  left: 51%;
  top: 33%;
  width: 34%;
  transform: rotate(35deg);
}

.card-body {
  padding: 22px 20px 24px;
}

.card-body h3,
.idea-card h3 {
  margin: 0 0 9px;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.card-body p,
.idea-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.card-links {
  margin-top: auto;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.notes-section {
  position: relative;
}

.notes-list {
  border-top: 1px solid var(--line-strong);
}

.note-row {
  display: grid;
  grid-template-columns: 90px 1fr auto 32px;
  gap: 18px;
  align-items: center;
  min-height: 90px;
  border-bottom: 1px solid var(--line);
  transition: padding 160ms ease, color 160ms ease;
}

.note-row:hover,
.note-row:focus-visible {
  padding-inline: 12px;
  color: var(--accent);
  outline: none;
}

.note-date,
.note-meta {
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
}

.note-title {
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 580;
  letter-spacing: -0.02em;
}

.note-arrow {
  justify-self: end;
}

.idea-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.idea-card {
  display: flex;
  min-height: 280px;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.idea-state {
  width: fit-content;
  margin-bottom: 56px;
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--blue) 42%, transparent);
  border-radius: 999px;
  color: var(--blue);
}

.state-testing {
  border-color: color-mix(in srgb, var(--accent) 42%, transparent);
  color: var(--accent);
}

.state-dropped {
  border-color: color-mix(in srgb, var(--orange) 42%, transparent);
  color: var(--orange);
}

.idea-footer {
  margin-top: auto;
  padding-top: 22px;
  color: var(--faint);
}

.principles {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 80px;
  margin-bottom: 90px;
  padding: clamp(34px, 6vw, 72px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
}

.principles-grid {
  border-top: 1px solid var(--line-strong);
}

.principles-grid p {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  margin: 0;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.principles-grid span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 120px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.8rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a:hover {
  color: var(--text);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(184, 243, 93, 0.45); }
  70% { box-shadow: 0 0 0 12px rgba(184, 243, 93, 0); }
  100% { box-shadow: 0 0 0 0 rgba(184, 243, 93, 0); }
}

@keyframes orbit-spin {
  from { transform: translate(-50%, -50%) rotate(-12deg); }
  to { transform: translate(-50%, -50%) rotate(348deg); }
}

@keyframes blink {
  50% { opacity: 0; }
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 100px;
  }

  .signal-panel {
    min-height: 430px;
  }

  .status-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .status-strip > div:nth-child(2) {
    border-right: 0;
  }

  .status-strip > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .section-heading,
  .principles {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .project-grid,
  .idea-board {
    grid-template-columns: 1fr;
  }

  .project-card-featured {
    grid-row: auto;
    min-height: 620px;
  }

  .principles {
    padding: 36px 28px;
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .site-footer {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .site-header {
    top: 8px;
    margin-top: 8px;
  }

  .theme-label {
    display: none;
  }

  .hero {
    gap: 46px;
    padding-top: 78px;
  }

  .hero h1 {
    font-size: clamp(3rem, 17vw, 5rem);
  }

  .signal-panel {
    min-height: 360px;
  }

  .signal-node-project {
    left: 7%;
  }

  .signal-node-note {
    right: 5%;
  }

  .status-strip {
    margin-bottom: 92px;
  }

  .section {
    padding-bottom: 104px;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .note-row {
    grid-template-columns: 1fr auto;
    gap: 6px 14px;
    min-height: 104px;
    padding: 16px 0;
  }

  .note-date,
  .note-meta {
    grid-row: 1;
  }

  .note-title {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .note-arrow {
    display: none;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 28px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}