:root {
  --bg: #1a1a1a;
  --bg-soft: #222;
  --line: #2f2f2f;
  --text: #e6f7ff;
  --muted: #9bb0b8;
  --accent: #00ffff;
  --accent-2: #33ff33;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Fira Code", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  scroll-behavior: smooth;
}

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

.container {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 92vh;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, #000 35%, transparent 100%);
  animation: drift 14s linear infinite;
}

@keyframes drift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(48px);
  }
}

.top-nav {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}

.brand {
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
}

.brand-logo {
  width: 1.6rem;
  height: 1.6rem;
}

.nav-links {
  display: flex;
  gap: 1.1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.hero-content {
  position: relative;
  z-index: 2;
  padding: 12vh 0 6rem;
}

.hero-label {
  color: var(--accent-2);
  margin: 0;
}

h1 {
  margin: 0.75rem 0 1rem;
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1.1;
}

.hero-subtitle {
  max-width: 700px;
  color: var(--muted);
  line-height: 1.7;
}

.search-wrap {
  margin-top: 2rem;
}

#searchInput {
  width: min(100%, 720px);
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid #2c5959;
  color: var(--text);
  padding: 0.95rem 1rem;
  border-radius: 0.5rem;
  outline: none;
}

#searchInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.15);
}

.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--line);
}

.section.alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.01), rgba(0, 255, 255, 0.02));
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
}

.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.landing-grid {
  margin-top: 1.6rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.landing-link {
  border: 1px solid #2e4f4f;
  background: #101515;
  padding: 0.85rem;
  color: var(--text);
  text-transform: lowercase;
}

.landing-link:hover {
  border-color: var(--accent);
}

.memory-layout {
  margin-top: 2rem;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr 1.2fr;
}

.pyramid {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.layer {
  border: 1px solid #2a3f3f;
  background: #101414;
  color: var(--text);
  padding: 0.9rem;
  text-align: left;
  cursor: pointer;
}

.layer:hover,
.layer.active {
  border-color: var(--accent);
  background: #0d1c1c;
}

.layer-panel {
  border: 1px solid #2a3f3f;
  background: #101414;
  padding: 1rem 1.1rem;
}

.tool-box {
  margin-top: 1.2rem;
  border: 1px solid #314848;
  background: #0f1212;
  padding: 1rem;
}

.tool-box label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-2);
  font-size: 0.85rem;
}

.tool-box textarea,
.tool-box input {
  width: 100%;
  background: #0a0e0e;
  border: 1px solid #2c4e4e;
  color: var(--text);
  padding: 0.8rem;
  border-radius: 0.35rem;
}

.cta-btn {
  margin-top: 0.8rem;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  padding: 0.55rem 0.85rem;
  cursor: pointer;
}

.cta-btn:hover {
  background: rgba(0, 255, 255, 0.08);
}

.result-grid {
  margin-top: 0.9rem;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.result-card {
  border: 1px solid #2f4a4a;
  background: #0d1010;
  padding: 0.75rem;
}

.timeline {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline-item {
  border: 1px solid #315151;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.25);
  animation: glow 3.2s ease-in-out infinite;
}

.timeline-item:nth-child(2) {
  animation-delay: 0.7s;
}

.timeline-item:nth-child(3) {
  animation-delay: 1.4s;
}

@keyframes glow {
  0%,
  100% {
    box-shadow: 0 0 0 rgba(0, 255, 255, 0);
  }
  50% {
    box-shadow: 0 0 24px rgba(0, 255, 255, 0.15);
  }
}

.timeline-item span {
  color: var(--accent-2);
  font-size: 0.8rem;
}

.card-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid #334646;
  background: #0f0f0f;
  padding: 1rem;
}

.tag {
  display: inline-block;
  margin-top: 0.6rem;
  border: 1px solid #2f6f6f;
  color: var(--accent);
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
}

.mcp-table-wrap {
  margin-top: 1.4rem;
  overflow-x: auto;
}

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

.mcp-table th,
.mcp-table td {
  border: 1px solid #2e4848;
  padding: 0.75rem;
  text-align: left;
}

.mcp-table th {
  color: var(--accent);
  background: #0e1313;
}

.guide-grid {
  margin-top: 1.4rem;
}

.code-grid {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.code-card {
  border: 1px solid #314949;
  background: #0d0d0d;
  padding: 1rem;
}

pre {
  margin: 0.5rem 0 0;
  overflow-x: auto;
  background: #0b0b0b;
  border: 1px solid #293232;
  padding: 0.8rem;
}

.action-list {
  margin-top: 1.5rem;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.8;
}

.footer {
  padding: 1.4rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.85rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hidden-by-search {
  display: none;
}

@media (max-width: 900px) {
  .landing-grid,
  .memory-layout,
  .result-grid,
  .timeline,
  .card-grid,
  .code-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }
}