:root {
  --bg-color: #0c1017;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #60a5fa;
  --accent-gradient: linear-gradient(135deg, #60a5fa, #c084fc);
  --card-bg: rgba(30, 41, 59, 0.4);
  --card-border: rgba(255, 255, 255, 0.08);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 15% 10%, rgba(96, 165, 250, 0.15), transparent 40%),
              radial-gradient(circle at 85% 20%, rgba(192, 132, 252, 0.15), transparent 40%);
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  flex: 1;
}

/* Animations */
@keyframes fadeInSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(2deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 3rem 0 2rem;
  animation: fadeInSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo {
  width: 120px;
  height: 120px;
  border-radius: 28%;
  animation: float 6s ease-in-out infinite;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 
              0 0 0 1px rgba(255,255,255,0.1);
  background-color: #fff;
}

.hero {
  text-align: center;
  margin-bottom: 4rem;
  animation: fadeInSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.15s backwards;
}

.title {
  font-size: 4.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1.4rem;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

.content-section {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 3rem;
  margin-bottom: 2rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  animation: fadeInSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s backwards;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.content-section:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.content-section h2 {
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.content-section p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.content-section p:last-child {
  margin-bottom: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
  animation: fadeInSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.45s backwards;
}

.card {
  margin-bottom: 0; /* Override generic margin */
  background: rgba(255, 255, 255, 0.02);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card p {
  font-size: 1.1rem;
}

.table-wrapper {
  overflow-x: auto;
  margin-top: 2rem;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.2);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
}

tr:last-child td {
  border-bottom: none;
}

th {
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td {
  color: var(--text-secondary);
}

.indicator {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 12px;
}

.indicator-on { background-color: #3b82f6; box-shadow: 0 0 10px #3b82f6; }
.indicator-off { background-color: #475569; }
.indicator-flash-slow { background-color: #3b82f6; animation: blink 2s infinite; }
.indicator-flash-med { background-color: #eab308; animation: blink 1s infinite; }
.indicator-flash-fast { background-color: #ef4444; animation: blink 0.3s infinite; }
.indicator-breath { background-color: #3b82f6; animation: breathe 4s ease-in-out infinite; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@keyframes breathe {
  0%, 100% { opacity: 0.1; box-shadow: none; }
  50% { opacity: 1; box-shadow: 0 0 10px #3b82f6; }
}

/* KITT sweep */
.kitt-leds {
  display: inline-flex;
  gap: 6px;
  margin-right: 12px;
  vertical-align: middle;
}

.kitt-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #475569;
  transition: background-color 0.1s, box-shadow 0.1s;
}

.kitt-dot.kitt-bright {
  background-color: #ef4444;
  box-shadow: 0 0 10px #ef4444;
}

.kitt-dot.kitt-dim {
  background-color: #7f1d1d;
  box-shadow: none;
}

code {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2em 0.4em;
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: #e2e8f0;
  font-size: 0.9em;
}

ul, ol {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  font-size: 1.15rem;
}

li {
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

li::marker {
  color: var(--accent-color);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

a:hover {
  border-bottom-color: var(--accent-color);
}

footer {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-top: auto;
  opacity: 0.7;
}

@media (max-width: 768px) {
  .title { font-size: 3rem; }
  .grid { grid-template-columns: 1fr; }
  .content-section { padding: 2rem; }
}