/* ==========================================================================
   AsteraOS — Minimalist Pre-Release Design System
   Sovereign, Calm Computing, Tactile Velocity
   ========================================================================== */

:root {
  /* Core Monochromatic Canvas */
  --bg-deep: #060608;
  --bg-surface: #0a0a0e;
  --bg-card: rgba(14, 14, 19, 0.65);
  --bg-card-hover: rgba(22, 22, 30, 0.8);
  --bg-glass: rgba(18, 18, 25, 0.72);
  --bg-elevated: #14141c;

  /* Restrained Astera Accents */
  --accent: #5e4deb;
  --accent-light: #8275f8;
  --accent-soft: rgba(94, 77, 235, 0.12);
  --accent-glow: rgba(94, 77, 235, 0.28);
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  /* Precision Hairline Borders */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-highlight: rgba(255, 255, 255, 0.2);
  --border-accent: rgba(94, 77, 235, 0.35);

  /* Typography Colors */
  --text-pure: #ffffff;
  --text-primary: #ededf2;
  --text-secondary: #9092a0;
  --text-muted: #585966;
  --text-dim: #3a3b45;

  /* Fonts */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-deep);
  line-height: 1.6;
}

/* Ambient Canvas Particle Layer */
.ambient-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

/* Restrained Ambient Radial Glow */
.ambient-vignette {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: 1400px;
  height: 640px;
  background: radial-gradient(ellipse 60% 45% at 50% 0%, rgba(94, 77, 235, 0.16) 0%, rgba(94, 77, 235, 0.03) 60%, transparent 85%);
  pointer-events: none;
  z-index: 1;
}

/* Subtle Micro Grid */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 25%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 25%, black 20%, transparent 75%);
  pointer-events: none;
  z-index: 1;
}

/* Header */
.site-header {
  position: sticky;
  top: 20px;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
  z-index: 100;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: border-color 0.3s ease;
}

.header-container:hover {
  border-color: var(--border-medium);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  height: 28px;
  width: auto;
  object-fit: contain;
  opacity: 1;
  display: block;
  filter: drop-shadow(0 2px 10px rgba(94, 77, 235, 0.3));
  transition: transform 0.2s ease;
}

.brand-link:hover .brand-logo {
  transform: scale(1.02);
}

.version-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--accent-light);
  background: var(--accent-soft);
  padding: 3px 8px;
  border-radius: 9999px;
  border: 1px solid rgba(130, 117, 248, 0.24);
}

.header-center {
  display: flex;
  align-items: center;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.02);
  padding: 5px 12px;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: beaconPulse 2.5s infinite ease-in-out;
}

@keyframes beaconPulse {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.15); }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Command Palette Cue Button */
.cmd-palette-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 6px 12px;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.2s ease;
}

.cmd-palette-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-pure);
  border-color: var(--border-medium);
}

.cmd-key {
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-minimal-cta {
  display: inline-flex;
  align-items: center;
  background: var(--text-pure);
  color: #08080a;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 9999px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.8);
  transition: all 0.2s var(--ease-spring);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.btn-minimal-cta:hover {
  transform: translateY(-1px);
  background: #f1f1f5;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
}

/* Page Wrapper */
.page-wrapper {
  position: relative;
  z-index: 10;
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 24px 80px;
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding: 40px 0 60px;
}

.hero-container {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Eyebrow */
.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 16px;
  background: var(--accent-soft);
  border: 1px solid rgba(130, 117, 248, 0.28);
  border-radius: 9999px;
  margin-bottom: 28px;
  box-shadow: 0 0 20px rgba(94, 77, 235, 0.15);
}

.eyebrow-sparkle {
  color: #a496ff;
  font-size: 0.85rem;
}

.eyebrow-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-light);
  box-shadow: 0 0 6px var(--accent-light);
}

.eyebrow-text {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #c9c3fc;
}

/* Hero Title */
.hero-title {
  font-size: clamp(2.8rem, 5.8vw, 4.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: #ffffff;
  margin-bottom: 24px;
}

.desktop-br {
  display: inline;
}

.title-gradient {
  background: linear-gradient(135deg, #ffffff 15%, #b4a8ff 60%, #6857ea 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 40px rgba(107, 89, 240, 0.25);
}

/* Hero Subtitle */
.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.24rem);
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.68;
  max-width: 680px;
  margin-bottom: 44px;
}

/* Waitlist Capsule */
.waitlist-card {
  width: 100%;
  max-width: 520px;
  margin-bottom: 20px;
}

.waitlist-form {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-medium);
  border-radius: 9999px;
  padding: 5px 6px 5px 18px;
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: all 0.25s ease;
}

.waitlist-form:focus-within {
  border-color: rgba(130, 117, 248, 0.5);
  box-shadow: 0 16px 40px -10px rgba(94, 77, 235, 0.22), 0 0 0 2px rgba(94, 77, 235, 0.25);
}

.input-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.input-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.input-wrapper input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-pure);
}

.input-wrapper input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #7464f8 0%, #5e4deb 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: all 0.2s var(--ease-spring);
  flex-shrink: 0;
}

.submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(94, 77, 235, 0.4);
}

.btn-arrow {
  stroke: currentColor;
  transition: transform 0.2s ease;
}

.submit-btn:hover .btn-arrow {
  transform: translateX(3px);
}

/* Feedback Notification */
.form-feedback {
  margin-top: 14px;
}

.feedback-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 0.84rem;
  color: #a7f3d0;
}

.check-icon {
  font-weight: bold;
  color: var(--accent-emerald);
}

.waitlist-caption {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* OS Console Preview (Visual Centerpiece) */
.os-console-section {
  padding: 30px 0 60px;
}

.os-window-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 
    0 30px 90px -20px rgba(0, 0, 0, 0.85),
    0 0 50px -10px rgba(94, 77, 235, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: border-color 0.3s ease;
}

.os-window-frame:hover {
  border-color: var(--border-highlight);
}

.os-window-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(18, 18, 25, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  gap: 16px;
}

.window-controls {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 80px;
}

.w-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  opacity: 0.65;
  transition: opacity 0.2s ease;
}

.os-window-frame:hover .w-dot {
  opacity: 1;
}

.dot-close { background: #ff5f57; }
.dot-min { background: #febc2e; }
.dot-expand { background: #28c840; }

.window-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.title-env {
  color: var(--text-secondary);
}

.title-sep {
  color: var(--text-dim);
}

.title-session {
  color: var(--accent-light);
}

.window-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.win-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 5px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.win-tab:hover {
  color: var(--text-pure);
  background: rgba(255, 255, 255, 0.04);
}

.win-tab.active {
  color: var(--text-pure);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

.tab-index {
  color: var(--accent-light);
  font-size: 0.68rem;
}

/* Console Body & Subbar */
.os-window-body {
  padding: 24px;
  min-height: 280px;
  background: radial-gradient(circle at 50% 0%, rgba(94, 77, 235, 0.05) 0%, transparent 60%);
}

.tab-panel {
  display: none;
  animation: fadeInPanel 0.3s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.console-subbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.76rem;
}

.subbar-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.meta-label {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

.meta-val {
  color: var(--text-secondary);
  font-size: 0.76rem;
}

.subbar-state {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.74rem;
}

.state-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
}

/* Ledger & Inventory Tables */
.ledger-table-wrap {
  overflow-x: auto;
  margin-bottom: 20px;
}

.ledger-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  text-align: left;
}

.ledger-table th {
  padding: 10px 14px;
  color: var(--text-dim);
  font-weight: 500;
  letter-spacing: 0.06em;
  font-size: 0.7rem;
  border-bottom: 1px solid var(--border-subtle);
}

.ledger-table td {
  padding: 12px 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  transition: background 0.15s ease;
}

.ledger-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.025);
  color: var(--text-pure);
}

.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-light { color: var(--text-pure); font-weight: 500; }
.text-highlight { color: #d0caff; }
.text-accent { color: #a496ff; }
.text-amber { color: var(--accent-amber); }

.badge-verified {
  display: inline-block;
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-reorder {
  display: inline-block;
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Tab 3: Node Specs Grid */
.node-spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.spec-card {
  background: rgba(18, 18, 25, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 16px;
  transition: border-color 0.2s ease;
}

.spec-card:hover {
  border-color: var(--border-medium);
}

.spec-key {
  font-size: 0.68rem;
  color: var(--accent-light);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.spec-val {
  font-size: 0.88rem;
  color: var(--text-pure);
  font-weight: 600;
  margin-bottom: 4px;
}

.spec-detail {
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* Console Footer Hint */
.console-footer-hint {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.hint-shortcut kbd {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  margin-right: 4px;
}

/* Architectural Tenets (Minimalist Triad) */
.tenets-section {
  padding: 60px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin: 40px 0;
}

.tenets-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

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

.tenet-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 14px;
}

.tenet-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.tenet-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Pre-Launch Notice Box */
.launch-notice-section {
  padding: 50px 0;
  text-align: center;
}

.launch-notice-box {
  max-width: 640px;
  margin: 0 auto;
  background: radial-gradient(circle at 50% 0%, rgba(94, 77, 235, 0.08) 0%, rgba(14, 14, 20, 0.6) 80%);
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  padding: 44px 36px;
  box-shadow: 0 20px 60px -15px rgba(0, 0, 0, 0.6);
}

.launch-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.launch-statement {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.launch-subtext {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 26px;
  line-height: 1.6;
}

.btn-minimal-link {
  display: inline-flex;
  align-items: center;
  color: var(--accent-light);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-minimal-link:hover {
  color: var(--text-pure);
  transform: translateX(4px);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 36px 24px;
}

.footer-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo {
  height: 20px;
  width: auto;
  opacity: 0.8;
  display: block;
  object-fit: contain;
}

.copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--text-pure);
}

.footer-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

/* Interactive Quick Command Palette (⌘K) Modal */
.cmd-dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 4, 7, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 999;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14vh;
  animation: fadeInModal 0.2s ease;
}

@keyframes fadeInModal {
  from { opacity: 0; }
  to { opacity: 1; }
}

.cmd-dialog-box {
  width: 100%;
  max-width: 580px;
  background: #0d0d13;
  border: 1px solid var(--border-medium);
  border-radius: 16px;
  box-shadow: 0 25px 80px -10px rgba(0, 0, 0, 0.9), 0 0 40px rgba(94, 77, 235, 0.15);
  overflow: hidden;
  animation: scaleInModal 0.2s var(--ease-spring);
}

@keyframes scaleInModal {
  from { transform: scale(0.96) translateY(-8px); }
  to { transform: scale(1) translateY(0); }
}

.cmd-input-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
}

.cmd-search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

#cmd-palette-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  color: var(--text-pure);
}

#cmd-palette-input::placeholder {
  color: var(--text-muted);
}

.cmd-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
}

.cmd-close-btn kbd {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 3px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.cmd-results-list {
  max-height: 330px;
  overflow-y: auto;
  padding: 10px 8px;
}

.cmd-group-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 10px 14px 6px;
}

.cmd-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cmd-item:hover, .cmd-item.active {
  background: rgba(255, 255, 255, 0.07);
}

.cmd-item.active .cmd-item-name {
  color: var(--text-pure);
}

.cmd-item-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cmd-item-icon {
  font-size: 1rem;
}

.cmd-item-name {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.cmd-shortcut {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.cmd-dialog-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(10, 10, 15, 0.95);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.cmd-footer-keys {
  display: flex;
  align-items: center;
  gap: 14px;
}

.cmd-footer-keys kbd {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.05);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--text-secondary);
  margin-right: 3px;
}

.cmd-footer-brand {
  font-family: var(--font-mono);
  color: var(--text-dim);
}

/* Toast */
.toast-notification {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 20, 28, 0.95);
  border: 1px solid var(--border-highlight);
  backdrop-filter: blur(16px);
  color: var(--text-pure);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 10px 20px;
  border-radius: 9999px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
  z-index: 10000;
  animation: toastPop 0.3s var(--ease-spring);
}

@keyframes toastPop {
  from { transform: translate(-50%, 15px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

/* Responsiveness */
@media (max-width: 900px) {
  .header-center {
    display: none;
  }

  .tenets-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .node-spec-grid {
    grid-template-columns: 1fr;
  }

  .desktop-br {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 12px;
    padding: 0 12px;
  }

  .header-container {
    padding: 8px 14px;
  }

  .cmd-label {
    display: none;
  }

  .version-tag {
    display: none;
  }

  .page-wrapper {
    padding: 50px 16px 60px;
  }

  .hero-section {
    padding: 20px 0 40px;
  }

  .waitlist-form {
    flex-direction: column;
    padding: 12px;
    border-radius: 16px;
    gap: 12px;
  }

  .input-wrapper {
    width: 100%;
  }

  .submit-btn {
    width: 100%;
    justify-content: center;
  }

  .os-window-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .window-tabs {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
  }
}