:root {
  --bg-main: #09090b;
  --bg-card: #121215;
  --bg-subtle: #0d0d10;
  --text-main: #ffffff;
  --text-sub: #a1a1aa;
  --text-muted: #71717a;
  --border: #27272a;
  --border-strong: #3f3f46;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --font-sans: 'Plus Jakarta Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body.dark-theme {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Header with Strong Blur */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.65);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo {
  width: 28px;
  height: 28px;
}

.brand-name {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.15s;
}

.nav-link:hover {
  color: #ffffff;
}

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.9rem;
  background: #18181b;
  border: 1px solid var(--border);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.btn-github:hover {
  background: #27272a;
  border-color: var(--border-strong);
}

/* Hero Section with Neutral Light Rays */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6.5rem 2rem 5.5rem;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.light-rays-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: #ffffff;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-sub);
  max-width: 720px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cli-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #18181b;
  border: 1px solid var(--border);
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.cli-prefix {
  color: var(--text-muted);
  font-weight: 700;
}

.cli-text {
  font-weight: 600;
  color: #ffffff;
}

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.copy-btn:hover {
  color: #ffffff;
}

.btn-primary-white {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: #ffffff;
  color: #09090b;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: opacity 0.15s;
}

.btn-primary-white:hover {
  opacity: 0.9;
}

/* Console Section */
.console-section {
  padding: 5.5rem 2rem;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
}

.console-container {
  max-width: 1280px;
  margin: 0 auto;
}

.section-heading-group {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.75rem;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: var(--text-sub);
  font-size: 1rem;
}

/* Scenario Tabs */
.scenario-tabs {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
}

.scenario-tab {
  padding: 0.65rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.15s;
}

.scenario-tab:hover {
  border-color: var(--border-strong);
  color: #ffffff;
}

.scenario-tab.active {
  background: #ffffff;
  color: #09090b;
  border-color: #ffffff;
}

/* Console Card */
.console-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.console-pane {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pane-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-sub);
}

.pane-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: #27272a;
  color: #ffffff;
  border: 1px solid var(--border);
}

.pane-tag.unverified {
  background: #18181b;
  color: var(--text-muted);
}

.code-editor {
  background: #09090b;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: #e4e4e7;
  overflow-x: auto;
  min-height: 220px;
}

.code-editor.compact {
  min-height: 120px;
  padding: 0.85rem;
}

/* Verdict Display */
.verdict-display {
  background: #18181b;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.verdict-rule-id {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: #ffffff;
  display: block;
}

.verdict-message {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-sub);
}

.telemetry-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
}

.telemetry-item {
  display: flex;
  flex-direction: column;
}

.tel-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
}

.tel-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  margin-top: 2px;
}

.response-box {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.response-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* Capabilities Grid */
.capabilities-section {
  padding: 5.5rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  transition: transform 0.2s, border-color 0.2s;
}

.cap-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}

.cap-num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.75rem;
}

.cap-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.cap-text {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.6;
}

.cap-text code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: #18181b;
  padding: 2px 5px;
  border-radius: 3px;
  border: 1px solid var(--border);
}

/* Integration Section */
.integration-section {
  padding: 5.5rem 2rem;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
}

.integration-container {
  max-width: 900px;
  margin: 0 auto;
}

.config-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 2rem 0 1.5rem;
  flex-wrap: wrap;
}

.config-tab {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.5rem 1.15rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius-pill);
  color: var(--text-sub);
  transition: all 0.15s;
}

.config-tab.active {
  background: #ffffff;
  color: #09090b;
  border-color: #ffffff;
}

.code-box {
  position: relative;
  background: #09090b;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.code-box pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #f4f4f5;
  overflow-x: auto;
}

.copy-code-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: #18181b;
  padding: 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

/* Footer */
.footer {
  background: #09090b;
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-logo {
  width: 28px;
  height: 28px;
  margin-bottom: 0.5rem;
}

.footer-name {
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  display: block;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  max-width: 320px;
  margin-top: 0.35rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: color 0.15s;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  max-width: 1280px;
  margin: 3rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Comprehensive Responsive Optimization */
@media (max-width: 1024px) {
  .console-card {
    grid-template-columns: 1fr;
  }
  .capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-section {
    padding: 4.5rem 1.25rem 3.5rem;
    min-height: 420px;
  }
  .console-section,
  .capabilities-section,
  .integration-section {
    padding: 4rem 1.25rem;
  }
  .section-heading-group {
    margin-bottom: 2rem;
  }
}

@media (max-width: 640px) {
  .nav-container {
    padding: 0.75rem 1rem;
  }

  .nav-links-group {
    display: none;
  }

  .btn-github {
    padding: 0.4rem 0.75rem;
    font-size: 0.78rem;
  }

  .hero-section {
    padding: 3.5rem 1rem 2.75rem;
    min-height: 360px;
  }

  .hero-title {
    font-size: clamp(2rem, 8.5vw, 2.75rem);
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
    line-height: 1.5;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .cli-box {
    width: 100%;
    justify-content: space-between;
    font-size: 0.8rem;
    padding: 0.65rem 1rem;
    box-sizing: border-box;
  }

  .btn-primary-white {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    font-size: 0.88rem;
    box-sizing: border-box;
  }

  .scenario-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0.5rem;
    width: 100%;
  }

  .scenario-tabs::-webkit-scrollbar {
    display: none;
  }

  .scenario-tab {
    flex-shrink: 0;
    padding: 0.55rem 0.95rem;
    font-size: 0.75rem;
    white-space: nowrap;
  }

  .console-card {
    padding: 1.15rem;
    gap: 1.25rem;
    border-radius: var(--radius-md);
  }

  .code-editor {
    min-height: 160px;
    font-size: 0.72rem;
    padding: 0.85rem;
  }

  .telemetry-bar {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .cap-card {
    padding: 1.25rem;
  }

  .config-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0.4rem;
    width: 100%;
  }

  .config-tabs::-webkit-scrollbar {
    display: none;
  }

  .config-tab {
    flex-shrink: 0;
    padding: 0.45rem 0.85rem;
    font-size: 0.78rem;
    white-space: nowrap;
  }

  .code-box {
    padding: 1.15rem 0.85rem;
  }

  .code-box pre {
    font-size: 0.74rem;
  }

  .footer {
    padding: 3rem 1rem 1.5rem;
  }

  .footer-container {
    flex-direction: column;
    gap: 1.5rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 0.65rem;
  }
}