:root {
  --bg: #0c1117;
  --bg-accent: #172331;
  --panel: rgba(12, 17, 23, 0.58);
  --text: #f3efe6;
  --muted: #b2bcc8;
  --line: rgba(243, 239, 230, 0.14);
  --signal: #f37b2b;
  --cool: #4f87b8;
  --surface: rgba(8, 12, 18, 0.42);
}

html[data-theme="light"] {
  --bg: #f6f0e7;
  --bg-accent: #dfe7ef;
  --panel: rgba(255, 252, 247, 0.76);
  --text: #1d252d;
  --muted: #55606d;
  --line: rgba(29, 37, 45, 0.12);
  --surface: rgba(255, 255, 255, 0.58);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(243, 123, 43, 0.22), transparent 32%),
    radial-gradient(circle at bottom right, rgba(79, 135, 184, 0.24), transparent 28%),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-accent) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
  pointer-events: none;
}

.page-frame {
  position: relative;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.2rem 0 2rem;
}

.site-header,
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: var(--surface);
  backdrop-filter: blur(18px);
}

.site-header {
  margin-bottom: 1.8rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: inherit;
  text-decoration: none;
}

.header-mark {
  width: 3rem;
  height: 3rem;
}

.wordmark,
.wordmark-meta,
.footer-title,
.footer-copy,
.footer-meta p {
  margin: 0;
}

.wordmark {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.wordmark-meta,
.footer-copy,
.footer-meta {
  color: var(--muted);
}

.wordmark-meta {
  font-size: 0.88rem;
  text-transform: lowercase;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.toggle-group,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
}

.toggle-btn,
.theme-toggle {
  font: inherit;
  color: var(--text);
  background: transparent;
  cursor: pointer;
}

.toggle-btn {
  border: 0;
  padding: 0.6rem 0.85rem;
}

.toggle-btn.is-active {
  background: rgba(243, 123, 43, 0.16);
  color: var(--signal);
}

.theme-toggle {
  padding: 0.6rem 0.95rem;
}

.shell {
  display: grid;
  gap: 2rem;
  min-height: calc(100vh - 14rem);
  align-content: center;
}

.hero {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2.2rem;
  align-items: center;
}

.brand-mark-frame {
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(12, 17, 23, 0.18));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px);
}

html[data-theme="light"] .brand-mark-frame {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(223, 231, 239, 0.5));
}

.hero-mark-frame {
  width: 240px;
  height: 240px;
}

.brand-mark {
  width: 100%;
  height: auto;
}

.hero-copy {
  display: grid;
  gap: 1rem;
}

.eyebrow,
.principle-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.22rem;
  color: var(--signal);
  font-size: 0.8rem;
}

.brand-name,
.hero h2 {
  margin: 0;
  letter-spacing: -0.06em;
}

.brand-name {
  font-size: clamp(3.4rem, 8vw, 6.6rem);
  line-height: 0.9;
}

.concept-tag {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.lead {
  margin: 0;
  max-width: 44rem;
  font-size: clamp(1.02rem, 2vw, 1.24rem);
  line-height: 1.72;
  color: var(--muted);
}

.panel {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  width: fit-content;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  backdrop-filter: blur(18px);
}

.panel p {
  margin: 0;
}

.dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 999px;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(243, 123, 43, 0.6);
  animation: pulse 2.2s infinite;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.principle-card {
  display: grid;
  gap: 0.8rem;
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: rgba(8, 12, 18, 0.38);
}

html[data-theme="light"] .principle-card {
  background: rgba(255, 255, 255, 0.52);
}

.principle-card h2,
.principle-card p {
  margin: 0;
}

.principle-card p:last-child {
  color: var(--muted);
  line-height: 1.6;
}

.site-footer {
  margin-top: 1.8rem;
}

.footer-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.footer-meta {
  display: grid;
  gap: 0.3rem;
  text-align: right;
}

.footer-meta span {
  color: var(--text);
}

.footer-meta p {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.color-chip {
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  flex: 0 0 auto;
}

.color-chip-primary {
  background: #F37B2B;
}

.color-chip-secondary {
  background: #4F87B8;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(243, 123, 43, 0.6);
  }

  70% {
    box-shadow: 0 0 0 14px rgba(243, 123, 43, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(243, 123, 43, 0);
  }
}

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

@media (max-width: 820px) {
  .site-header,
  .site-footer,
  .hero {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .header-controls,
  .footer-meta {
    justify-content: flex-start;
    text-align: left;
  }

  .hero-mark-frame {
    width: min(240px, 100%);
  }
}

@media (max-width: 640px) {
  .page-frame {
    width: min(100% - 1rem, 100%);
  }

  .panel {
    border-radius: 1.25rem;
    align-items: flex-start;
  }
}