:root {
  --bg: #08080d;
  --bg-soft: #0f0f18;
  --ink: #f4f3f8;
  --ink-dim: #9b97b5;
  --ink-dimmer: #6b6788;
  --accent-1: #ff5d5d;
  --accent-2: #7c3aed;
  --accent-3: #22d3ee;
  --line: rgba(255, 255, 255, 0.08);
  --glass: rgba(255, 255, 255, 0.04);
  --radius: 20px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-2);
  color: white;
}

a {
  color: inherit;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Background FX ---------- */

.fx-blobs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.fx-blobs span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.45;
  will-change: transform;
}

.fx-blobs .b1 {
  width: 520px;
  height: 520px;
  top: -160px;
  right: -120px;
  background: var(--accent-1);
  animation: float1 22s ease-in-out infinite;
}

.fx-blobs .b2 {
  width: 480px;
  height: 480px;
  bottom: -200px;
  left: -140px;
  background: var(--accent-2);
  animation: float2 26s ease-in-out infinite;
}

.fx-blobs .b3 {
  width: 360px;
  height: 360px;
  top: 40%;
  left: 55%;
  background: var(--accent-3);
  opacity: 0.25;
  animation: float1 30s ease-in-out infinite reverse;
}

.fx-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, black 40%, transparent 100%);
  opacity: 0.5;
}

@keyframes float1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-60px, 60px) scale(1.12); }
}

@keyframes float2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(50px, -40px) scale(1.08); }
}

/* ---------- Nav ---------- */

header.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(140%);
  background: rgba(8, 8, 13, 0.55);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  text-decoration: none;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

nav.links {
  display: flex;
  gap: 28px;
  font-size: 0.92rem;
  color: var(--ink-dim);
}

nav.links a {
  text-decoration: none;
  position: relative;
  transition: color 0.2s var(--ease);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg) !important;
  font-weight: 700;
  font-size: 0.86rem;
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.15);
}

/* ---------- Hero ---------- */

main {
  position: relative;
  z-index: 1;
}

.hero {
  padding: 120px 0 90px;
  text-align: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass);
  font-size: 0.82rem;
  color: var(--ink-dim);
  margin-bottom: 28px;
  opacity: 0;
  animation: rise 0.8s var(--ease) 0.1s forwards;
}

.kicker .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
}

h1.display {
  font-size: clamp(2.8rem, 7vw, 6.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
  margin: 0 0 24px;
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.2s forwards;
}

h1.display .accent {
  color: var(--accent-1);
}

.sub {
  max-width: 640px;
  margin: 0 auto 40px;
  font-size: 1.18rem;
  color: var(--ink-dim);
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.32s forwards;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.42s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.96rem;
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.btn.primary {
  background: linear-gradient(100deg, var(--accent-1), var(--accent-2));
  color: white;
  box-shadow: 0 10px 40px -10px rgba(124, 58, 237, 0.6);
}

.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 50px -12px rgba(124, 58, 237, 0.75);
}

.btn.ghost {
  background: var(--glass);
  border: 1px solid var(--line);
  color: var(--ink);
}

.btn.ghost:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.08);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Stats ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 70px;
}

.stat {
  background: var(--bg-soft);
  padding: 30px 20px;
  text-align: center;
}

.stat .num {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(100deg, var(--accent-1), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat .lbl {
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--ink-dim);
}

/* ---------- Sections ---------- */

section {
  padding: 120px 0;
}

.section-head {
  max-width: 640px;
  margin: 0 0 56px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent-3);
  margin-bottom: 14px;
  display: block;
}

.section-head h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}

.section-head p {
  color: var(--ink-dim);
  font-size: 1.05rem;
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Feature grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  position: relative;
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--glass), transparent);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.18);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent);
}

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  display: none;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff, #ddd);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.card code {
  color: var(--accent-3);
  background: rgba(34, 211, 238, 0.1);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.85em;
}

/* ---------- Code showcase ---------- */

.code-panel {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #0a0a12;
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
}

.code-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.code-topbar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink-dimmer);
}

.code-topbar span:nth-child(1) { background: #ff5f56; }
.code-topbar span:nth-child(2) { background: #ffbd2e; }
.code-topbar span:nth-child(3) { background: #27c93f; }

.code-topbar .filename {
  margin-left: 10px;
  font-size: 0.8rem;
  color: var(--ink-dimmer);
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
}

pre.code {
  margin: 0;
  padding: 26px;
  overflow-x: auto;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.92rem;
  line-height: 1.7;
}

pre.code .c { color: #6b7280; }
pre.code .k { color: #ff5d5d; }
pre.code .s { color: #a3e635; }
pre.code .f { color: #22d3ee; }
pre.code .n { color: #f4f3f8; }

/* ---------- Views table ---------- */

.views-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.views-table th, .views-table td {
  text-align: left;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.views-table thead th {
  background: var(--glass);
  color: var(--ink-dim);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.views-table tbody tr:last-child td {
  border-bottom: none;
}

.views-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.views-table code {
  color: var(--accent-1);
  font-weight: 700;
}

/* ---------- Timeline / architecture ---------- */

.arch {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.arch .step {
  position: relative;
  padding: 28px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--glass);
}

.arch .step .no {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-3);
  letter-spacing: 0.1em;
}

.arch .step h4 {
  margin: 10px 0 8px;
  font-size: 1.05rem;
}

.arch .step p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.9rem;
}

.arch-arrow {
  display: none;
}

/* ---------- Citation ---------- */

.cite-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
}

.cite-box {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 28px;
  position: relative;
}

.cite-box pre {
  margin: 0;
  white-space: pre-wrap;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.86rem;
  color: var(--ink-dim);
  line-height: 1.7;
}

.copy-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 7px 12px;
  border-radius: 8px;
  background: var(--glass);
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.2s var(--ease);
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.authors {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--glass);
  text-decoration: none;
}

.author .av {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}

.author .meta strong {
  display: block;
  font-size: 0.95rem;
}

.author .meta span {
  font-size: 0.8rem;
  color: var(--ink-dim);
}

/* ---------- Final CTA ---------- */

.cta-final {
  text-align: center;
  padding: 100px 0 60px;
}

.cta-final h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}

.cta-final p {
  color: var(--ink-dim);
  margin: 0 0 36px;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
}

.foot-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--ink-dimmer);
  font-size: 0.86rem;
}

.foot-inner a {
  color: var(--ink-dim);
  text-decoration: none;
}

.foot-inner a:hover {
  color: var(--ink);
}

.foot-links {
  display: flex;
  gap: 22px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  nav.links { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: 1fr 1fr; }
  .arch { grid-template-columns: 1fr; }
  .cite-panel { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .hero { padding: 90px 0 60px; }
  section { padding: 80px 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}