:root {
  --bg-base: #07090d;
  --bg-soft: #0c121c;
  --panel: rgba(16, 22, 32, 0.85);
  --panel-strong: rgba(24, 32, 45, 0.95);
  --text: #f4f5f8;
  --muted: #a2aab8;
  --accent: #7df3c4;
  --accent-2: #ffb454;
  --accent-3: #6aa9ff;
  --border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 25px 65px rgba(0, 0, 0, 0.45);
  font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #07090d;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(900px 400px at 10% 0%, rgba(125, 243, 196, 0.12), transparent 60%),
    radial-gradient(700px 400px at 90% 10%, rgba(106, 169, 255, 0.15), transparent 55%),
    radial-gradient(800px 500px at 50% 120%, rgba(255, 180, 84, 0.1), transparent 60%),
    linear-gradient(160deg, var(--bg-base), var(--bg-soft) 40%, #05070c 100%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  background: rgba(8, 11, 17, 0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.logo {
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--accent);
}

nav a {
  margin-left: 18px;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

nav a:hover {
  background: var(--panel);
  color: var(--accent);
}

nav a.is-active {
  background: var(--panel-strong);
  color: var(--accent);
  box-shadow: 0 10px 30px rgba(125, 243, 196, 0.12);
}

main {
  padding: 34px 22px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero {
  margin: 24px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  align-items: stretch;
}

.eyebrow {
  color: var(--accent);
  letter-spacing: 0.18em;
  font-size: 11px;
  text-transform: uppercase;
  margin: 0 0 6px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.1;
}

.lede {
  margin: 0;
  max-width: 72ch;
  color: var(--muted);
  line-height: 1.6;
}

.section-block {
  margin-top: 26px;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.section-title {
  margin: 0;
  font-size: 20px;
}

.section-lede {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(6px);
  transition: border 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.card:hover {
  border-color: rgba(125, 243, 196, 0.4);
  transform: translateY(-4px);
  background: var(--panel-strong);
}

.card h2 {
  margin: 6px 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.tag {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(125, 243, 196, 0.12);
  border: 1px solid rgba(125, 243, 196, 0.28);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.inline-link {
  color: var(--accent);
  font-weight: 600;
}

.status-card {
  background: rgba(10, 14, 22, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--card-shadow);
}

.status-card h2 {
  margin: 0 0 10px;
}

.status-card p {
  margin: 0 0 10px;
  color: var(--muted);
}

.status-list {
  display: grid;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 12px;
  margin-right: 6px;
}

.pill strong {
  color: var(--text);
  font-weight: 600;
}

.footer {
  padding: 18px 22px 30px;
  display: flex;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--border);
}

/* Page specific helpers */
.page-grid {
  display: grid;
  gap: 14px;
}

.section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--card-shadow);
}

.section h2 {
  margin: 0 0 8px;
}

.section p {
  margin: 0 0 8px;
  color: var(--muted);
}

.stacked {
  display: grid;
  gap: 10px;
}

.canvas-shell {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(125, 243, 196, 0.12), rgba(106, 169, 255, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.canvas-shell.tall {
  min-height: 60vh;
}

.canvas-shell canvas {
  width: 100%;
  height: 420px;
  display: block;
}

.canvas-shell.tall canvas {
  height: 100%;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

label {
  font-size: 14px;
  color: var(--muted);
}

input[type="text"],
input[type="range"] {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: var(--text);
  padding: 8px 10px;
  font-family: inherit;
}

textarea {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  color: var(--text);
  padding: 12px 14px;
  font-family: inherit;
  min-height: 120px;
  resize: vertical;
}

select {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: var(--text);
  padding: 8px 10px;
  font-family: inherit;
}

button {
  background: var(--accent);
  color: #091016;
  border: none;
  border-radius: 10px;
  padding: 9px 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 12px 30px rgba(125, 243, 196, 0.2);
}

button:hover {
  transform: translateY(-1px);
}

.grid-squares {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.square {
  border-radius: 12px;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  position: relative;
  overflow: hidden;
}

.square span {
  position: absolute;
  left: 10px;
  bottom: 8px;
  font-size: 12px;
  color: var(--muted);
}

.note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.data-card {
  background: rgba(8, 12, 18, 0.8);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  font-size: 14px;
  color: var(--muted);
}

.data-card code {
  color: var(--text);
  font-size: 16px;
}

@media (max-width: 720px) {
  nav a {
    margin-left: 8px;
    padding: 6px 10px;
  }

  .footer {
    flex-direction: column;
    gap: 6px;
  }

  .canvas-shell canvas {
    height: 320px;
  }

  .canvas-shell.tall {
    min-height: 50vh;
  }
}