:root {
  --bg: #EEF0F2;
  --bg-grid: rgba(16, 21, 27, 0.07);
  --surface: #FFFFFF;
  --surface-2: #E4E7EA;
  --text: #10151B;
  --text-muted: #52606D;
  --accent-cyan: #147F70;
  --accent-amber: #B36A14;
  --border: rgba(16, 21, 27, 0.14);
  --led: #1FAE86;
  --shadow: 0 1px 2px rgba(16,21,27,0.05), 0 12px 32px -16px rgba(16,21,27,0.18);

  --font-display: "Big Shoulders Display", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0A0D10;
    --bg-grid: rgba(232, 230, 221, 0.06);
    --surface: #12171D;
    --surface-2: #1A2129;
    --text: #ECE8DD;
    --text-muted: #8D96A3;
    --accent-cyan: #52C7B8;
    --accent-amber: #E8A33D;
    --border: rgba(232, 230, 221, 0.13);
    --led: #52C7B8;
    --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 20px 48px -20px rgba(0,0,0,0.6);
  }
}
:root[data-theme="dark"] {
  --bg: #0A0D10;
  --bg-grid: rgba(232, 230, 221, 0.06);
  --surface: #12171D;
  --surface-2: #1A2129;
  --text: #ECE8DD;
  --text-muted: #8D96A3;
  --accent-cyan: #52C7B8;
  --accent-amber: #E8A33D;
  --border: rgba(232, 230, 221, 0.13);
  --led: #52C7B8;
  --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 20px 48px -20px rgba(0,0,0,0.6);
}
:root[data-theme="light"] {
  --bg: #EEF0F2;
  --bg-grid: rgba(16, 21, 27, 0.07);
  --surface: #FFFFFF;
  --surface-2: #E4E7EA;
  --text: #10151B;
  --text-muted: #52606D;
  --accent-cyan: #147F70;
  --accent-amber: #B36A14;
  --border: rgba(16, 21, 27, 0.14);
  --led: #1FAE86;
  --shadow: 0 1px 2px rgba(16,21,27,0.05), 0 12px 32px -16px rgba(16,21,27,0.18);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 85%);
}

main {
  position: relative;
  z-index: 1;
  max-width: 920px;
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6.5rem) 1.5rem 3rem;
}

.hero { max-width: 720px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow .led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--led);
  box-shadow: 0 0 6px 1px var(--led);
  flex: none;
}

h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.75rem, 6.4vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
  text-wrap: balance;
}

.lede {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 58ch;
  margin: 0;
}

.panels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: clamp(3rem, 6vw, 4.5rem);
}
@media (max-width: 720px) {
  .panels { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem 1.5rem 1.75rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.panel__tag { color: var(--text-muted); }
.panel__status {
  display: flex;
  align-items: center;
  gap: 0.4em;
  color: var(--text);
}
.panel__status .led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--led);
  box-shadow: 0 0 6px 1px var(--led);
}

.panel__viz {
  width: 100%;
  height: 56px;
  display: block;
  border-radius: 6px;
  background: var(--surface-2);
}

.panel h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.7rem;
  letter-spacing: -0.005em;
  margin: 0.1rem 0 0;
}

.panel p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
  flex: 1;
}

.panel__cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.7rem 1rem;
  margin-top: 0.25rem;
  transition: border-color 0.15s ease, transform 0.15s ease, color 0.15s ease;
}
.panel--cyan .panel__cta:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }
.panel--amber .panel__cta:hover { border-color: var(--accent-amber); color: var(--accent-amber); }
.panel__cta:hover span { transform: translateX(3px); }
.panel__cta span { transition: transform 0.15s ease; display: inline-block; }
.panel__cta:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

.site-footer {
  margin-top: clamp(3rem, 6vw, 5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  display: flex;
  gap: 0.6em;
}
.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--text);
  text-decoration: underline;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}