/* ============================================================
   NodeRefine.com — Aether Design System
   Color Palette:
     Primary:    #0A2F2F  (deep ink green)
     Accent:     #CCFF00  (neon mint/lime)
     Background: #060606  (near-black)
     Glass:      rgba(255,255,255,0.04)
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --c-bg:        #060606;
  --c-bg-alt:    #0a0a0a;
  --c-primary:   #0A2F2F;
  --c-primary-l: #0d3d3d;
  --c-accent:    #CCFF00;
  --c-accent-dim:#9ac200;
  --c-text:      #e2e2e2;
  --c-text-muted:#777;
  --c-glass:     rgba(255,255,255,0.04);
  --c-glass-h:   rgba(255,255,255,0.07);
  --c-glass-border: rgba(255,255,255,0.08);
  --c-glass-border-h: rgba(255,255,255,0.14);
  --radius-lg:   1rem;
  --radius-full: 9999px;
  --shadow-sm:   0 2px 12px rgba(0,0,0,0.4);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(204,255,0,0.08);
  --transition:  .32s cubic-bezier(.4,.0,.2,1);
  --transition-bounce: .45s cubic-bezier(.34,1.56,.64,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #e0ff44; }

img { max-width: 100%; display: block; }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: #fff;
}

::selection { background: rgba(204,255,0,0.25); color: #fff; }

/* --- Utility --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 6rem 0; }

.text-accent { color: var(--c-accent); }
.text-muted  { color: var(--c-text-muted); }
.text-center { text-align: center; }

.flex       { display: flex; }
.flex-col   { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

.grid       { display: grid; }
.grid-2     { grid-template-columns: repeat(2, 1fr); }
.grid-3     { grid-template-columns: repeat(3, 1fr); }
.grid-4     { grid-template-columns: repeat(4, 1fr); }

/* --- Glass Panel --- */
.glass {
  background: var(--c-glass);
  backdrop-filter: blur(20px) saturate(1.3) brightness(1.05);
  -webkit-backdrop-filter: blur(20px) saturate(1.3) brightness(1.05);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.glass:hover {
  border-color: var(--c-glass-border-h);
  background: var(--c-glass-h);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), var(--shadow-sm);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  font-size: .938rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform var(--transition-bounce), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:active { transform: scale(.97); }

.btn-primary {
  background: var(--c-accent);
  color: #0A2F2F;
}
.btn-primary:hover {
  background: #d9ff33;
  color: #0A2F2F;
  box-shadow: 0 0 28px rgba(204,255,0,0.25);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--c-accent);
  border: 1px solid rgba(204,255,0,0.3);
}
.btn-outline:hover {
  background: rgba(204,255,0,0.08);
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.btn-ghost {
  background: var(--c-glass);
  color: var(--c-text);
  border: 1px solid var(--c-glass-border);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover {
  background: var(--c-glass-h);
  border-color: var(--c-glass-border-h);
  transform: translateY(-2px);
}

.btn-sm {
  padding: .5rem 1.2rem;
  font-size: .8rem;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 3rem);
  max-width: 1200px;
  z-index: 1000;
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(6,6,6,0.65);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-lg);
  transition: background var(--transition), border-color var(--transition);
}

.navbar.scrolled {
  background: rgba(6,6,6,0.88);
  border-color: var(--c-glass-border-h);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.03em;
}

.nav-logo .logo-icon {
  width: 28px;
  height: 28px;
  background: var(--c-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  color: var(--c-primary);
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--c-text-muted);
  font-size: .875rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-accent);
  border-radius: var(--radius-full);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 6rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(10,47,47,0.5) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(204,255,0,0.03) 0%, transparent 60%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem 1rem;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-accent);
  border: 1px solid rgba(204,255,0,0.2);
  border-radius: var(--radius-full);
  background: rgba(204,255,0,0.06);
  margin-bottom: 1.5rem;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(204,255,0,0.4); }
  50% { opacity: .6; box-shadow: 0 0 0 6px rgba(204,255,0,0); }
}

.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -.04em;
  margin-bottom: 1.5rem;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--c-accent) 0%, #a0e600 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--c-text-muted);
  max-width: 560px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- Metrics Dashboard --- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.metric-card {
  padding: 2rem;
  text-align: center;
}

.metric-value {
  font-size: 3rem;
  font-weight: 800;
  color: var(--c-accent);
  letter-spacing: -.04em;
  line-height: 1;
  margin-bottom: .5rem;
  font-variant-numeric: tabular-nums;
}

.metric-label {
  font-size: .875rem;
  color: var(--c-text-muted);
  font-weight: 500;
}

.metric-sub {
  font-size: .75rem;
  color: rgba(204,255,0,0.5);
  margin-top: .25rem;
}

/* --- How It Works --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  counter-reset: step;
}

.step-card {
  padding: 2.5rem 2rem;
  position: relative;
  counter-increment: step;
}

.step-card::before {
  content: counter(step, decimal-leading-zero);
  font-size: 4rem;
  font-weight: 900;
  color: rgba(204,255,0,0.06);
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  line-height: 1;
}

.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(204,255,0,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  color: var(--c-accent);
}

.step-card h3 {
  font-size: 1.15rem;
  margin-bottom: .75rem;
}

.step-card p {
  font-size: .875rem;
  color: var(--c-text-muted);
  line-height: 1.7;
}

/* --- Integrations --- */
.integration-scroll {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.integration-item {
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-text-muted);
}

.integration-item .int-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(204,255,0,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  color: var(--c-accent);
  font-weight: 800;
}

/* --- Feature Sections --- */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }

.feature-text h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  letter-spacing: -.03em;
}

.feature-text p {
  color: var(--c-text-muted);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.feature-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
}

.feature-visual-inner {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--c-primary) 0%, #061a1a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 8rem 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(204,255,0,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
  letter-spacing: -.03em;
}

.cta-section p {
  color: var(--c-text-muted);
  max-width: 500px;
  margin: 0 auto 2.5rem;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--c-glass-border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--c-text-muted);
  font-size: .875rem;
  margin-top: .75rem;
  max-width: 280px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-text-muted);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.footer-col a {
  color: var(--c-text-muted);
  font-size: .875rem;
  transition: color var(--transition);
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--c-glass-border);
  font-size: .8rem;
  color: var(--c-text-muted);
}

/* --- Code Block --- */
.code-block {
  display: block;
  background: rgba(0,0,0,0.55);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem 1.35rem;
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.65;
  overflow-x: auto;
  color: #b0bec5;
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 2;
  -moz-tab-size: 2;
}

.code-block .keyword { color: #c792ea; }
.code-block .string  { color: #c3e88d; }
.code-block .func    { color: #82aaff; }
.code-block .comment { color: #546e7a; font-style: italic; }
.code-block .accent  { color: #f78c6c; }
.code-block .type    { color: #ffcb6b; }
/* JSON / API examples */
.code-block .key     { color: #89ddff; }
.code-block .method  { color: #c792ea; font-weight: 600; }
.code-block .path    { color: #e0e0e0; }
.code-block .bool    { color: #ff9e64; }
.code-block .num     { color: #f78c6c; }

/* --- Tabs --- */
.tabs {
  display: flex;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-glass-border);
  background: var(--c-glass);
  width: fit-content;
  margin-bottom: 2rem;
}

.tab-btn {
  padding: .65rem 1.5rem;
  font-size: .8rem;
  font-weight: 600;
  background: transparent;
  color: var(--c-text-muted);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.tab-btn.active {
  color: var(--c-accent);
  background: rgba(204,255,0,0.06);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* --- Badge / Tag --- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: .25rem .75rem;
  font-size: .7rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: rgba(204,255,0,0.08);
  color: var(--c-accent);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.tag-outline {
  background: transparent;
  border: 1px solid var(--c-glass-border);
  color: var(--c-text-muted);
}

/* --- Table --- */
.table-wrap {
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-glass-border);
  overflow: hidden;
  background: var(--c-glass);
}

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

.table-wrap th,
.table-wrap td {
  padding: 1rem 1.5rem;
  text-align: left;
  font-size: .875rem;
}

.table-wrap th {
  background: rgba(255,255,255,0.03);
  color: var(--c-text-muted);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
}

.table-wrap td {
  border-top: 1px solid var(--c-glass-border);
}

/* --- Pricing Card --- */
.pricing-card {
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pricing-card.featured {
  border-color: rgba(204,255,0,0.2);
  background: rgba(204,255,0,0.03);
}

.pricing-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), #a0e600);
}

.pricing-name {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-accent);
  font-weight: 700;
  margin-bottom: .5rem;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.04em;
  line-height: 1;
  margin-bottom: .25rem;
}

.pricing-price span {
  font-size: 1rem;
  color: var(--c-text-muted);
  font-weight: 500;
}

.pricing-desc {
  color: var(--c-text-muted);
  font-size: .875rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-bottom: 2.5rem;
  flex: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  font-size: .875rem;
  color: var(--c-text);
}

.pricing-features li .check {
  color: var(--c-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Sidebar (Docs) --- */
.docs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  padding-top: 7.5rem;
  padding-bottom: 2rem;
  min-height: 100vh;
}

.docs-sidebar {
  position: sticky;
  top: 6rem;
  height: fit-content;
  max-height: calc(100vh - 8rem);
  overflow-y: auto;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--c-glass);
  border: 1px solid var(--c-glass-border);
}

.docs-sidebar h3 {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-text-muted);
  margin-bottom: .75rem;
  margin-top: 1.5rem;
}

.docs-sidebar h3:first-child { margin-top: 0; }

.docs-sidebar ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.docs-sidebar a {
  display: block;
  padding: .45rem .75rem;
  font-size: .8rem;
  line-height: 1.45;
  color: var(--c-text-muted);
  border-radius: 8px;
  transition: var(--transition);
}

.docs-sidebar a:hover,
.docs-sidebar a.active {
  color: #fff;
  background: rgba(255,255,255,0.04);
}

.docs-sidebar a.active {
  color: var(--c-accent);
  background: rgba(204,255,0,0.06);
}

.docs-content {
  max-width: 800px;
  padding-bottom: 6rem;
  padding-top: 0.25rem;
  min-width: 0;
}

.docs-content section {
  scroll-margin-top: 6rem;
}

.docs-content h1 {
  font-size: 2.5rem;
  margin-bottom: .75rem;
  letter-spacing: -.03em;
}

.docs-content h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-glass-border);
}

.docs-content h2 + p {
  margin-top: 0;
}

.docs-content h3 {
  font-size: 1.15rem;
  margin-top: 2rem;
  margin-bottom: .75rem;
  color: #fff;
}

.docs-content h3 + p {
  margin-bottom: 1rem;
}

.docs-content p {
  color: var(--c-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.docs-content ul, .docs-content ol {
  color: var(--c-text-muted);
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.docs-content li { margin-bottom: .5rem; line-height: 1.7; }

.docs-content .code-block {
  margin-top: 0.75rem;
  margin-bottom: 1.75rem;
}

.docs-content h3 + .code-block {
  margin-top: 0.5rem;
  margin-bottom: 1.25rem;
}

.docs-content .table-wrap + .code-block {
  margin-top: 1rem;
}

/* --- Lab Page Specific --- */
.lab-hero {
  padding-top: 8rem;
  padding-bottom: 3rem;
}

.visualizer-container {
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-glass-border);
  background: var(--c-glass);
  padding: 2rem;
  position: relative;
  min-height: 420px;
}

.visualizer-canvas {
  width: 100%;
  height: 400px;
  border-radius: 12px;
  background: linear-gradient(135deg, #050a0a, #0A2F2F);
}

.rule-card {
  padding: 2rem;
}

.rule-card h3 { font-size: 1.05rem; margin-bottom: .5rem; }
.rule-card p { font-size: .85rem; color: var(--c-text-muted); margin-bottom: 1.25rem; }

.toggle-switch {
  width: 48px;
  height: 26px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  position: relative;
  cursor: pointer;
  transition: var(--transition);
}

.toggle-switch.on { background: rgba(204,255,0,0.3); }

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: #fff;
  transition: var(--transition);
}

.toggle-switch.on::after { transform: translateX(22px); }

/* --- Playground --- */
.playground-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.playground-panel {
  padding: 1.5rem;
}

.playground-panel h4 {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-text-muted);
  margin-bottom: 1rem;
}

.playground-input {
  width: 100%;
  min-height: 120px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  color: var(--c-text);
  font-family: 'JetBrains Mono', monospace;
  font-size: .8rem;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
}

.playground-input:focus { border-color: rgba(204,255,0,0.3); }

.playground-output {
  width: 100%;
  min-height: 120px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: .8rem;
  color: var(--c-accent);
  line-height: 1.7;
}

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

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s cubic-bezier(.4,0,.2,1), transform .6s cubic-bezier(.4,0,.2,1);
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 4rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: .75rem;
  letter-spacing: -.03em;
}

.section-header p {
  color: var(--c-text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* --- Mobile Menu --- */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(6,6,6,0.95);
  backdrop-filter: blur(24px);
  padding: 6rem 2rem 2rem;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-text);
}

.mobile-menu a:hover { color: var(--c-accent); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-3, .steps-grid, .metrics-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .feature-block { grid-template-columns: 1fr; gap: 2rem; }
  .feature-block.reverse { direction: ltr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: static; }
  .playground-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
  .section { padding: 4rem 0; }
  .nav-links { display: none; }
  .nav-actions .btn { display: none; }
  .hamburger { display: flex; }
  .grid-2, .grid-3, .steps-grid, .metrics-grid, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero h1 { font-size: 2.2rem; }
  .pricing-card { padding: 2rem 1.5rem; }
}

/* --- Waitlist / Access Request --- */
.waitlist-section {
  position: relative;
  overflow: hidden;
}

.waitlist-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(204,255,0,0.05) 0%, transparent 65%);
  pointer-events: none;
}

.waitlist-card {
  max-width: 520px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
}

.waitlist-form {
  display: flex;
  gap: .75rem;
  margin-top: 1.5rem;
}

.waitlist-input {
  flex: 1;
  padding: .85rem 1.25rem;
  font-size: .9rem;
  font-family: inherit;
  color: var(--c-text);
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.waitlist-input::placeholder {
  color: rgba(255,255,255,0.2);
}

.waitlist-input:focus {
  border-color: rgba(204,255,0,0.3);
  box-shadow: 0 0 0 3px rgba(204,255,0,0.06);
}

.waitlist-msg {
  margin-top: .75rem;
  font-size: .8rem;
  min-height: 1.5rem;
  transition: opacity .3s;
}

.waitlist-msg.success { color: var(--c-accent); }
.waitlist-msg.error   { color: #ff6b6b; }

.access-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem .85rem;
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #ffcb6b;
  background: rgba(255,203,107,0.08);
  border: 1px solid rgba(255,203,107,0.2);
  border-radius: var(--radius-full);
}

.access-badge .lock-icon {
  width: 12px;
  height: 12px;
}

.locked-overlay {
  position: relative;
}

.locked-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6,6,6,0.6);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-lg);
  z-index: 1;
}

.locked-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .75rem;
  text-align: center;
}

.locked-badge svg {
  color: rgba(255,203,107,0.7);
}

.locked-badge-text {
  font-size: .85rem;
  font-weight: 600;
  color: #fff;
}

.locked-badge-sub {
  font-size: .75rem;
  color: var(--c-text-muted);
}

@media (max-width: 640px) {
  .waitlist-form { flex-direction: column; }
  .waitlist-card { padding: 2rem 1.5rem; }
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }