/* Design system — markdanielwilliams.com */
:root {
  --bg-base: #070808;
  --bg-surface: #0d1117;
  --bg-elevated: #161b22;
  --border: #30363d;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --accent-glow: rgba(0, 212, 255, 0.25);
  --green: #39ff14;
  --green-dim: rgba(57, 255, 20, 0.12);
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.6;
}

/* ----- Nav ----- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-elevated);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 1000;
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--green);
}

.nav-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ----- Hero ----- */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  padding-top: 60px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 2rem;
  min-height: 85vh;
  align-items: center;
  padding: 3rem 0;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(3.5rem, 10vw, 9rem);
  line-height: 0.95;
  margin: 0;
  letter-spacing: -0.02em;
}

.hero-name-line1 {
  display: block;
  color: var(--text-primary);
}

.hero-name-line2 {
  display: block;
  color: var(--accent);
  text-shadow: 0 0 60px var(--accent-glow);
}

.hero-typing-wrap {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin: 0.5rem 0 0;
}

.hero-cursor {
  animation: cursorBlink 1s step-end infinite;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-tagline {
  font-style: italic;
  color: var(--text-secondary);
  margin: 0.25rem 0;
  font-size: 1.1rem;
}

.hero-cta {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  background: transparent;
  border: 2px solid var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: background 0.2s, box-shadow 0.2s;
}

.hero-cta:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ----- Metrics panel ----- */
.metrics-panel {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
}

.metrics-panel-border {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 4px 4px 0 0;
}

.metrics-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.metrics-row:last-of-type {
  border-bottom: none;
}

.metrics-label {
  color: var(--text-secondary);
}

.metrics-value {
  color: var(--green);
  font-weight: 500;
}

.metrics-value-infinite,
.metrics-value-static {
  color: var(--green);
}

.metrics-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--green);
  font-size: 0.75rem;
}

.metrics-blink {
  animation: blink 1.2s step-end infinite;
  margin-right: 0.25rem;
}