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

:root {
  --bg:          hsl(100 25% 5%);
  --bg2:         hsl(100 22% 8%);
  --bg3:         hsl(100 20% 11%);
  --card:        hsl(100 22% 10%);
  --card2:       hsl(100 20% 13%);
  --border:      hsl(100 18% 18%);
  --border2:     hsl(100 16% 22%);
  --fg:          hsl(90 15% 88%);
  --fg2:         hsl(90 8% 62%);
  --fg3:         hsl(90 6% 44%);
  --green:       hsl(115 22% 50%);
  --green-dim:   hsl(115 18% 38%);
  --green-glow:  hsl(115 30% 50%);
  --green-bg:    hsl(115 20% 14%);
  --amber:       hsl(38 90% 54%);
  --amber-bg:    hsl(38 40% 12%);
  --red:         hsl(0 60% 55%);
  --red-bg:      hsl(0 30% 12%);
  --orange:      hsl(22 90% 55%);
  --mono:        'IBM Plex Mono', 'SFMono-Regular', Menlo, Consolas, monospace;
  --serif:       'DM Serif Display', 'Times New Roman', serif;
  --sans:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font:        var(--sans);
  --r:           8px;
  --r-lg:        14px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: var(--bg2);
  padding: 0 0 32px;
  z-index: 40;
  scrollbar-width: none;
}
.sidebar::-webkit-scrollbar { display: none; }

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}
.logo-img { width: 28px; height: 28px; flex-shrink: 0; }
.logo-text { font-size: 14px; font-weight: 600; color: var(--fg); letter-spacing: -.2px; }
.logo-sub  { font-size: 10px; color: var(--fg3); margin-top: 1px; }

.sidebar-cta { padding: 16px 14px 20px; border-bottom: 1px solid var(--border); }

.btn-sidebar-signup {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 16px;
  border-radius: 10px;
  text-decoration: none;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--green-dim);
  box-shadow: 0 0 0 0 transparent, inset 0 1px 0 hsl(115 40% 60% / 0.08);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn-sidebar-signup::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, hsl(115 40% 55% / 0.12) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform .55s ease;
  pointer-events: none;
}
.btn-sidebar-signup:hover {
  transform: translateY(-1px);
  border-color: var(--green);
  box-shadow: 0 4px 20px hsl(115 35% 20% / .5), 0 0 12px hsl(115 40% 40% / .2), inset 0 1px 0 hsl(115 40% 60% / .12);
}
.btn-sidebar-signup:hover::before { transform: translateX(100%); }
.btn-sidebar-signup .cta-label {
  display: flex;
  align-items: baseline;
  gap: 5px;
  font-size: 13.5px;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--fg);
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.btn-sidebar-signup .cta-label em {
  font-family: inherit;
  font-style: normal;
  font-weight: inherit;
  font-size: inherit;
  color: inherit;
  line-height: inherit;
}

.sidebar-section { padding: 20px 12px 4px; }
.sidebar-section-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fg3);
  padding: 0 8px;
  margin-bottom: 4px;
}
.sidebar-link {
  font-family: var(--mono);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--r);
  font-size: 13px;
  color: var(--fg2);
  text-decoration: none;
  transition: color .15s, background .15s;
  cursor: pointer;
}
.sidebar-link:hover { color: var(--fg); background: var(--bg3); }
.sidebar-link.active { color: var(--green); background: var(--green-bg); }
.sidebar-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border2);
  flex-shrink: 0;
  transition: background .15s;
}
.sidebar-link.active .sidebar-dot { background: var(--green); box-shadow: 0 0 6px var(--green-glow); }

.main { flex: 1; min-width: 0; }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 48px;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(hsl(115 18% 20% / .12) 1px, transparent 1px),
    linear-gradient(90deg, hsl(115 18% 20% / .12) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: grid-drift 20s linear infinite;
}
@keyframes grid-drift {
  0%   { transform: translate(0,0); }
  100% { transform: translate(48px, 48px); }
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(ellipse, hsl(115 35% 25% / .35) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: glow-pulse 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes glow-pulse {
  0%, 100% { opacity: .7; transform: translate(-50%,-50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%,-50%) scale(1.08); }
}

.orb { position: absolute; border-radius: 50%; filter: blur(60px); pointer-events: none; }
.orb-1 { width: 280px; height: 280px; background: hsl(115 40% 20% / .4); top: 10%; left: 8%; animation: float1 12s ease-in-out infinite; }
.orb-2 { width: 200px; height: 200px; background: hsl(38 60% 25% / .25); bottom: 15%; right: 12%; animation: float2 15s ease-in-out infinite; }
.orb-3 { width: 160px; height: 160px; background: hsl(115 30% 30% / .2); top: 60%; left: 20%; animation: float1 18s ease-in-out infinite reverse; }
@keyframes float1 {
  0%,100% { transform: translate(0,0); }
  33% { transform: translate(20px,-15px); }
  66% { transform: translate(-10px,20px); }
}
@keyframes float2 {
  0%,100% { transform: translate(0,0); }
  50% { transform: translate(-25px,15px); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  padding: 4px 12px;
  background: var(--green-bg);
  border: 1px solid var(--green-dim);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--green);
  margin-bottom: 28px;
  animation: fade-up .6s ease both;
  position: relative;
}
.badge-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-ring 2s ease infinite;
}
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 hsl(115 40% 50% / .6); }
  70% { box-shadow: 0 0 0 6px hsl(115 40% 50% / 0); }
  100% { box-shadow: 0 0 0 0 hsl(115 40% 50% / 0); }
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(50px, 6.8vw, 92px);
  font-weight: 400;
  line-height: .98;
  color: var(--fg);
  letter-spacing: -0.035em;
  margin-bottom: 24px;
  position: relative;
  animation: fade-up .7s .1s ease both;
  text-wrap: balance;
}
.hero-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--green);
  position: relative;
}
.hero-title em::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), transparent);
  border-radius: 2px;
}
.hero-sub {
  max-width: 560px;
  font-size: 17px;
  font-family: var(--sans);
  color: var(--fg2);
  line-height: 1.7;
  margin: 0 auto 40px;
  animation: fade-up .7s .2s ease both;
  position: relative;
}

.hero-features {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 56px;
  animation: fade-up .7s .45s ease both;
  position: relative;
}
.feature-pill {
  font-family: var(--mono);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12px;
  letter-spacing: .015em;
  color: var(--fg2);
  transition: border-color .2s, color .2s;
}
.feature-pill:hover { border-color: var(--green-dim); color: var(--fg); }
.feature-pill svg { color: var(--green); }

.arch-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-top: 64px;
  animation: fade-up .7s .55s ease both;
  position: relative;
  flex-wrap: wrap;
  row-gap: 8px;
}
.arch-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: 11px;
  color: var(--fg2);
  white-space: nowrap;
}
.arch-node strong { font-size: 13px; font-weight: 500; color: var(--fg); }
.arch-arrow { display: flex; align-items: center; padding: 0 4px; color: var(--green); font-size: 18px; }
.arch-node.highlight { border-color: var(--green-dim); background: var(--green-bg); }
.arch-node.highlight strong { color: var(--green); }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--fg3);
  font-size: 11px;
  animation: fade-up 1s 1s ease both;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--green), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.section {
  padding: 80px 48px;
  border-top: 1px solid var(--border);
  max-width: 900px;
  scroll-margin-top: 32px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}
.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--green);
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 3.5vw, 42px);
  line-height: 1.1;
  color: var(--fg);
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.section-title em { font-style: italic; color: var(--green); }
.section-lead {
  font-size: 16px;
  color: var(--fg2);
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--border2); transform: translateY(-1px); }
.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.card-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.card-title { font-size: 14px; font-weight: 500; color: var(--fg); }
.card-body { padding: 20px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.code-block {
  background: hsl(100 25% 4%);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  margin: 16px 0;
}
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.code-lang { font-size: 11px; color: var(--fg3); font-family: var(--mono); }
.code-copy {
  font-size: 11px;
  color: var(--fg3);
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
  font-family: var(--mono);
  transition: color .15s, border-color .15s;
}
.code-copy:hover { color: var(--fg); border-color: var(--border2); }
pre {
  padding: 20px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--fg);
  overflow-x: auto;
}
.kw  { color: var(--green); }
.str { color: hsl(38 80% 65%); }
.cmt { color: var(--fg3); font-style: italic; }
.num { color: hsl(200 70% 65%); }
.key { color: hsl(280 60% 72%); }

.steps { display: flex; flex-direction: column; gap: 0; }
.step { display: flex; gap: 24px; padding: 24px 0; position: relative; }
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 15px;
  top: 52px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--green-dim), transparent);
}
.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--green-bg);
  border: 1px solid var(--green-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  flex-shrink: 0;
  font-family: var(--mono);
  box-shadow: 0 0 12px hsl(115 30% 30% / .3);
}
.step-content { flex: 1; padding-top: 4px; }
.step-title { font-size: 15px; font-weight: 500; color: var(--fg); margin-bottom: 6px; }
.step-desc { font-size: 14px; color: var(--fg2); line-height: 1.65; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid;
}
.badge-green  { color: var(--green); border-color: hsl(115 22% 35%); background: var(--green-bg); }
.badge-amber  { color: var(--amber); border-color: hsl(38 60% 30%); background: var(--amber-bg); }
.badge-red    { color: var(--red); border-color: hsl(0 45% 30%); background: var(--red-bg); }
.badge-orange { color: var(--orange); border-color: hsl(22 60% 30%); background: hsl(22 30% 12%); }
.badge-gray   { color: var(--fg3); border-color: var(--border); background: var(--bg3); }

.doc-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.doc-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--fg3);
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.doc-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--fg2);
}
.doc-table tr:last-child td { border-bottom: none; }
.doc-table tr:hover td { background: var(--bg3); }
.doc-table code {
  font-family: var(--mono);
  font-size: 11.5px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--green);
}

.callout {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--r);
  border: 1px solid;
  margin: 20px 0;
  font-size: 14px;
  line-height: 1.6;
}
.callout-info  { border-color: hsl(115 22% 28%); background: var(--green-bg); color: hsl(115 20% 75%); }
.callout-warn  { border-color: hsl(38 60% 28%); background: var(--amber-bg); color: hsl(38 60% 75%); }
.callout-tip   { border-color: hsl(200 40% 28%); background: hsl(200 30% 10%); color: hsl(200 40% 75%); }
.callout-icon  { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

.rule-demo { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; }
.rule-demo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.rule-demo-title { font-size: 13px; font-weight: 500; color: var(--fg); }
.rule-demo-body { padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.rule-row { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.rule-field {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 8px;
  color: var(--green);
}
.rule-op { font-size: 11px; color: var(--fg3); font-family: var(--mono); }
.rule-val {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--amber-bg);
  border: 1px solid hsl(38 40% 25%);
  border-radius: 4px;
  padding: 3px 8px;
  color: var(--amber);
}
.rule-combinator {
  font-size: 10px;
  font-weight: 600;
  color: var(--fg3);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: var(--mono);
  width: fit-content;
}
.rule-action-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--fg2);
}
.rule-arrow { color: var(--green); font-size: 16px; }

.log-entry {
  display: flex;
  align-items: start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--r);
  border: 1px solid;
  margin-bottom: 8px;
  transition: border-color .15s;
}
.log-entry.allowed { border-color: hsl(115 22% 22%); background: hsl(115 18% 8%); }
.log-entry.blocked { border-color: hsl(0 40% 22%); background: hsl(0 25% 8%); }
.log-entry.notify { border-color: hsl(38 50% 22%); background: hsl(38 25% 8%); }
.log-icon { margin-top: 2px; font-size: 14px; flex-shrink: 0; }
.log-name { font-family: var(--mono); font-size: 13px; color: var(--fg); font-weight: 500; }
.log-meta { font-size: 11px; color: var(--fg3); margin-top: 2px; }
.log-rule {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: 100px;
  border: 1px solid;
  color: var(--red);
  border-color: hsl(0 40% 30%);
  background: var(--red-bg);
  margin-top: 3px;
}
.log-time { font-size: 11px; color: var(--fg3); margin-left: auto; flex-shrink: 0; }

code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--green);
}

p {
  font-family: var(--sans);
  margin-bottom: 14px;
  line-height: 1.75;
  letter-spacing: 0.002em;
}
p:last-child { margin-bottom: 0; }
h3 { font-size: 18px; font-weight: 500; color: var(--fg); margin: 32px 0 12px; }
h4 { font-size: 15px; font-weight: 500; color: var(--fg); margin: 24px 0 8px; }
ul { padding-left: 0; list-style: none; }
ul li { padding-left: 16px; position: relative; color: var(--fg2); font-size: 14px; margin-bottom: 8px; line-height: 1.6; }
ul li::before { content: '–'; position: absolute; left: 0; color: var(--green); }
ol { padding-left: 20px; }
ol li { color: var(--fg2); font-size: 14px; margin-bottom: 8px; line-height: 1.6; }

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

.page-intro {
  padding: 60px 48px 40px;
  border-bottom: 1px solid var(--border);
  max-width: 900px;
}
.page-kicker {
  display: inline-flex;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 10px;
}
.page-title {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}
.page-desc { color: var(--fg2); font-size: 16px; max-width: 720px; }

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
}
.faq-q { font-size: 18px; color: var(--fg); margin-bottom: 8px; }
.faq-a { color: var(--fg2); font-size: 14px; }

.seo-h1 {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mobile-nav-btn {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 100;
  width: 40px;
  height: 40px;
  border-radius: var(--r);
  background: var(--card);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--fg);
  font-size: 18px;
}

@media (max-width: 768px) {
  .sidebar { position: fixed; left: -260px; transition: left .3s; z-index: 50; }
  .sidebar.open { left: 0; }
  .main { padding-left: 0; }
  .mobile-nav-btn { display: flex; }
  .hero { padding: 80px 24px; min-height: auto; }
  .section { padding: 60px 24px; }
  .page-intro { padding: 80px 24px 32px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .arch-strip { flex-direction: column; }
  .arch-arrow { transform: rotate(90deg); }
}

@media (max-width: 480px) {
  .hero-title { font-size: 40px; }
  .hero-sub { font-size: 15px; }
}