:root {
  --bg: #0d1218;
  --bg-soft: #141b22;
  --surface: rgba(19, 27, 35, 0.88);
  --surface-strong: rgba(25, 35, 45, 0.96);
  --line: rgba(189, 202, 214, 0.14);
  --text: #edf2f5;
  --muted: #9fadb8;
  --accent: #7aa7bf;
  --accent-strong: #5d859c;
  --accent-warm: #bea06a;
  --bone: #ddd2c2;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.26);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --content-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(122, 167, 191, 0.13), transparent 26%),
    radial-gradient(circle at 18% 12%, rgba(190, 160, 106, 0.08), transparent 22%),
    linear-gradient(180deg, #0d1218 0%, #121920 40%, #0b1015 100%);
  min-height: 100vh;
}

img {
  display: block;
  max-width: 100%;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

.page-glow {
  position: fixed;
  width: 24rem;
  height: 24rem;
  filter: blur(82px);
  opacity: 0.1;
  pointer-events: none;
  z-index: 0;
}

.page-glow-a {
  top: -8rem;
  right: -8rem;
  background: var(--accent);
}

.page-glow-b {
  bottom: -6rem;
  left: -10rem;
  background: var(--accent-warm);
}

.site-header,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-footer,
.hero,
.proof-strip,
.section {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  margin: 0;
  padding: 1rem;
  isolation: isolate;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(13, 18, 24, 0.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  z-index: -1;
}

.site-header-inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}

.brand img {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.18));
}

.brand strong,
.brand small,
.site-nav a,
.eyebrow,
.panel-label,
.metric-label,
.timeline-step,
.preview-chip,
.pill {
  font-family: "IBM Plex Mono", monospace;
}

.brand strong {
  display: block;
  font-size: 1rem;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.72rem 0.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
}

.site-nav a.is-current {
  color: #111820;
  background: var(--bone);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(280px, 0.76fr);
  gap: 1.4rem;
  padding: 4.25rem 0 1.25rem;
  align-items: start;
}

.hero-copy h1,
.section-heading h2,
.info-card h3,
.timeline-item h3,
.principle-card h3,
.contact-card h2 {
  margin: 0;
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero-copy h1 {
  max-width: 12ch;
  font-size: clamp(2.8rem, 5.4vw, 4.7rem);
}

.eyebrow,
.panel-label,
.timeline-step {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.lede,
.project-copy p,
.info-card p,
.timeline-item p,
.principle-card p,
.contact-card p,
.proof-strip p,
.site-footer p,
.preview-frame figcaption {
  color: var(--muted);
  line-height: 1.65;
}

.lede {
  max-width: 40rem;
  font-size: 1.12rem;
  margin: 1.5rem 0 0;
}

.cta-row,
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.button:hover,
.button:focus-visible,
.preview-chip:hover,
.preview-chip:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--bone), #eee5d9);
  color: #111820;
  box-shadow: 0 20px 40px rgba(221, 210, 194, 0.16);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--line);
}

.hero-panel,
.info-card,
.principle-card,
.contact-card,
.preview-frame,
.timeline-item {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 1.2rem;
  border-radius: var(--radius-lg);
  display: grid;
  gap: 0.85rem;
  align-self: start;
}

.hero-panel-title {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero-panel-copy,
.meta-card p,
.artifact-card figcaption,
.text-link {
  color: var(--muted);
  line-height: 1.58;
}

.artifact-card {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.artifact-card img {
  width: 100%;
  aspect-ratio: 1.25 / 1;
  object-fit: cover;
}

.artifact-card-compact img {
  height: clamp(170px, 18vw, 220px);
  aspect-ratio: auto;
}

.artifact-card figcaption {
  margin: 0;
  padding: 0.75rem 0.9rem 0.9rem;
}

.hero-facts {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.55rem;
}

.hero-facts li {
  color: var(--text);
  line-height: 1.55;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--bone);
}

.metric-grid {
  display: grid;
  gap: 0.9rem;
}

.metric-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(122, 167, 191, 0.12), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(122, 167, 191, 0.18);
}

.metric-value {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
}

.metric-label {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0.75rem 0 0;
}

.proof-strip p {
  margin: 0;
  padding: 1.05rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.025);
}

.section {
  padding: 4.6rem 0 0;
}

.section-heading {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 1.8rem;
}

.section-heading h2 {
  max-width: 15ch;
  font-size: clamp(2.2rem, 6vw, 4.1rem);
}

.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: 1.6rem;
  align-items: start;
}

.feature-list {
  padding-left: 1.1rem;
  color: var(--text);
}

.feature-list li + li {
  margin-top: 0.8rem;
}

.project-preview {
  display: grid;
  gap: 1rem;
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.4rem;
}

.visualizer-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 1rem;
  align-items: stretch;
}

.viewer-stage,
.viewer-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
}

.viewer-stage {
  padding: 1rem;
}

#material-preview {
  height: 460px;
  border-radius: calc(var(--radius-lg) - 10px);
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(122, 167, 191, 0.16), transparent 28%),
    radial-gradient(circle at bottom left, rgba(190, 160, 106, 0.12), transparent 24%),
    linear-gradient(180deg, #10161d 0%, #151d25 100%);
}

#material-preview canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.viewer-note {
  margin: 0.9rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.viewer-panel {
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
}

.viewer-group {
  display: grid;
  gap: 0.65rem;
}

.viewer-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.viewer-chip {
  cursor: pointer;
  padding: 0.75rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease, color 0.22s ease;
}

.viewer-chip:hover,
.viewer-chip:focus-visible {
  transform: translateY(-2px);
}

.viewer-chip.is-active {
  background: var(--bone);
  color: #111820;
  border-color: transparent;
}

.viewer-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.viewer-toggle span,
.range-row span {
  color: var(--text);
}

.range-row {
  display: grid;
  gap: 0.45rem;
}

.range-row input,
.viewer-toggle input {
  accent-color: var(--accent);
}

.meta-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line);
}

.meta-card p:last-child {
  margin: 0;
}

.preview-frame {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.preview-frame img {
  height: clamp(320px, 36vw, 430px);
  object-fit: cover;
  width: 100%;
}

.preview-frame figcaption {
  margin: 0;
  padding: 0.95rem 1rem 1.1rem;
}

.preview-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.preview-chip {
  cursor: pointer;
  padding: 0.8rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-chip.is-active {
  color: #111820;
  background: var(--bone);
  border-color: transparent;
}

.card-grid,
.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

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

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

.info-card,
.principle-card,
.blender-shot {
  border-radius: var(--radius-lg);
  padding: 1.3rem;
}

.info-card img {
  width: 100%;
  height: clamp(180px, 19vw, 220px);
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 10px);
  margin-bottom: 1rem;
}

.blender-shot {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.blender-shot img {
  width: 100%;
  height: clamp(180px, 19vw, 220px);
  object-fit: cover;
  border-radius: calc(var(--radius-lg) - 10px);
  margin-bottom: 1rem;
}

.blender-shot figcaption {
  color: var(--muted);
  line-height: 1.6;
}

.info-card h3,
.timeline-item h3,
.principle-card h3 {
  font-size: 1.4rem;
}

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

.timeline-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 1rem;
  border-radius: var(--radius-lg);
  padding: 1.3rem;
}

.timeline-step {
  margin: 0;
  color: var(--accent-warm);
}

.section-contact {
  padding-bottom: 4rem;
}

.contact-card {
  border-radius: calc(var(--radius-lg) + 6px);
  padding: 1.8rem;
  background:
    linear-gradient(180deg, rgba(122, 167, 191, 0.08), rgba(255, 255, 255, 0.02)),
    linear-gradient(120deg, rgba(190, 160, 106, 0.11), transparent 45%),
    var(--surface-strong);
}

.site-footer {
  padding: 1rem 0 2.5rem;
}

.site-footer p {
  max-width: 44rem;
  margin: 0 auto;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 980px) {
  .hero,
  .project-grid,
  .visualizer-shell,
  .card-grid,
  .gallery-grid,
  .principles,
  .proof-strip,
  .project-meta {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.2rem;
  }

  .section-heading h2,
  .hero-copy h1 {
    max-width: none;
  }

  .preview-frame img {
    height: 360px;
  }

  #material-preview {
    height: 380px;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 0.8rem 1rem;
  }

  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    flex-wrap: wrap;
    width: 100%;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .button,
  .preview-chip,
  .site-nav a {
    width: 100%;
  }

  .proof-strip p,
  .hero-panel,
  .viewer-panel,
  .viewer-stage,
  .info-card,
  .blender-shot,
  .principle-card,
  .timeline-item,
  .contact-card {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .artifact-card-compact img,
  .preview-frame img,
  .info-card img,
  .blender-shot img {
    height: 220px;
  }

  #material-preview {
    height: 320px;
  }
}