/* ═══════════════════════════════════════════════════════════════
   DRIFT DESIGN SYSTEM v2.0 — CANONICAL SHARED STYLES
   Ecosystem Redesign Mockups
   ═══════════════════════════════════════════════════════════════ */

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

:root {
  /* Backgrounds */
  --bg-deep: #0B0B12;
  --bg-base: #0c0d0f;
  --bg-alt: #030712;
  --panel: #111215;
  --surface: #17181c;
  --border-panel: rgba(255, 255, 255, 0.05);

  /* Typography ink */
  --ink: #f2f0e8;
  --ink-secondary: #a8a6a0;
  --ink-muted: #6b6a66;

  /* Accent Palette (Domain: Cloud/Infrastructure = Teal + Violet accents) */
  --accent-primary: #22d3ee;
  --accent-primary-rgb: 34, 211, 238;
  --accent-secondary: #34d399;
  --accent-secondary-rgb: 52, 211, 153;
  --accent-tertiary: #818cf8;
  --accent-tertiary-rgb: 129, 140, 248;
  --accent-warning: #f472b6;
  --accent-danger: #fb7185;
  --accent-danger-rgb: 251, 113, 133;

  /* Glassmorphism */
  --glass-bg: rgba(17, 18, 21, 0.75);
  --glass-border: rgba(34, 211, 238, 0.15);
  --glass-blur: 16px;
  --grain-opacity: 0.035;

  /* Font Stacks */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout Dimensions */
  --content-max: 1200px;
  --header-height: 70px;

  /* Animation patterns */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  
  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 10px 30px rgba(34, 211, 238, 0.1);

  /* Arche Brand — Product Ecosystem Accents */
  --accent-studio: #22d3ee;
  --accent-flows: #34d399;
  --accent-workers: #818cf8;
  --accent-guard: #f472b6;
  --accent-registry: #fbbf24;
  --accent-runtime: #fb923c;
  --accent-audit: #fb7185;
  --accent-engine: #10b981;

  /* Arche Brand — Gateway Icon as embedded SVG (teal, 24x24 viewBox) */
  --icon-gateway: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M3.5 22 L3.5 10 C3.5 3 20.5 3 20.5 10 L20.5 22' stroke='%2322d3ee' stroke-width='1.5' stroke-linejoin='round' stroke-linecap='round'/%3E%3Cpath d='M3.5 14 L20.5 14' stroke='%2322d3ee' stroke-width='1.5' stroke-linecap='round'/%3E%3Ccircle cx='12' cy='3.5' r='1.5' fill='%2322d3ee'/%3E%3Ccircle cx='12' cy='14' r='3' fill='none' stroke='%2322d3ee' stroke-width='0.75' opacity='0.3'/%3E%3Ccircle cx='12' cy='14' r='1.5' fill='%2322d3ee'/%3E%3C/svg%3E");
  --icon-gateway-mono: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M3.5 22 L3.5 10 C3.5 3 20.5 3 20.5 10 L20.5 22' stroke='%23f2f0e8' stroke-width='1.5' stroke-linejoin='round' stroke-linecap='round'/%3E%3Cpath d='M3.5 14 L20.5 14' stroke='%23f2f0e8' stroke-width='1.5' stroke-linecap='round'/%3E%3Ccircle cx='12' cy='3.5' r='1.5' fill='%23f2f0e8'/%3E%3Ccircle cx='12' cy='14' r='3' fill='none' stroke='%23f2f0e8' stroke-width='0.75' opacity='0.3'/%3E%3Ccircle cx='12' cy='14' r='1.5' fill='%23f2f0e8'/%3E%3C/svg%3E");
}

/* ═══════════════════════════════════════════════════════════════
   LIGHT THEME
   ═══════════════════════════════════════════════════════════════ */
[data-theme="light"] {
  --bg-deep: #f8f6f2;
  --bg-base: #f0ede8;
  --bg-alt: #e8e4de;
  --panel: #ffffff;
  --surface: #f5f3ef;
  --border-panel: rgba(0, 0, 0, 0.06);

  --ink: #1a1a1a;
  --ink-secondary: #5a5a5a;
  --ink-muted: #9a9a9a;

  --accent-primary: #0ea5e9;
  --accent-primary-rgb: 14, 165, 233;
  --accent-secondary: #10b981;
  --accent-secondary-rgb: 16, 185, 129;
  --accent-tertiary: #8b5cf6;
  --accent-tertiary-rgb: 139, 92, 246;

  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(14, 165, 233, 0.2);
  --glass-blur: 16px;
  --grain-opacity: 0.015;

  --card-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --card-shadow-hover: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
}

/* ── Base Setup ── */
html {
  scroll-behavior: smooth;
  background-color: var(--bg-deep);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* ── Scrollbars ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
  background: var(--panel);
  border-radius: 3px;
  border: 1px solid var(--bg-deep);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* Selection Highlighting */
::selection {
  background: rgba(var(--accent-primary-rgb), 0.25);
  color: var(--ink);
}

/* ── Grain & Scanline Overlays ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 10000;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ── App Shell / Layout ── */
.app-shell {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 1.5rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  padding: 2.5rem 0 5rem 0;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 {
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--ink) 30%, rgba(var(--accent-primary-rgb), 0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 1.75rem;
}

p {
  color: var(--ink-secondary);
  font-size: 0.95rem;
}

.font-mono {
  font-family: var(--font-mono);
}

.text-accent {
  color: var(--accent-primary);
}

.text-muted {
  color: var(--ink-muted);
}

/* ── Header & Ecosystem Nav ── */
header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
  margin: 0 -1.5rem;
  padding: 0 1.5rem;
  transition: background var(--duration-base) var(--ease-out);
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-sans);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo span {
  color: var(--accent-primary);
}

.nav-logo-icon {
  width: 24px;
  height: 24px;
  stroke: var(--accent-primary);
  fill: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-menu a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--ink-secondary);
  text-decoration: none;
  padding: 0.5rem 0.875rem;
  border-radius: 6px;
  transition: all var(--duration-fast) var(--ease-out);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid transparent;
}

.nav-menu a svg {
  width: 16px;
  height: 16px;
  stroke-width: 2;
  opacity: 0.7;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.nav-menu a:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
}

.nav-menu a:hover svg {
  opacity: 1;
}

.nav-menu a.active {
  color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.06);
  border-color: rgba(var(--accent-primary-rgb), 0.15);
  box-shadow: 0 0 15px rgba(var(--accent-primary-rgb), 0.08);
}

.nav-menu a.active svg {
  stroke: var(--accent-primary);
  opacity: 1;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--ink-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.theme-toggle:hover {
  color: var(--accent-primary);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(var(--accent-primary-rgb), 0.15);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--ink);
  cursor: pointer;
  padding: 0.5rem;
  outline: none;
}

@media (max-width: 980px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--border-panel);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.75rem;
    align-items: stretch;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .nav-menu a {
    width: 100%;
    padding: 0.75rem 1.25rem;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-right .drift-btn {
    display: none;
  }
  
  .nav-menu .nav-cta-mobile {
    display: inline-flex !important;
    justify-content: center;
    margin-top: 0.5rem;
  }
}

/* ── Buttons ── */
.drift-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.4;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  border: 1px solid transparent;
  text-decoration: none;
  outline: none;
}

.drift-btn--primary {
  background: var(--accent-primary);
  color: var(--bg-deep);
  border-color: var(--accent-primary);
  font-weight: 600;
}

.drift-btn--primary:hover {
  background: transparent;
  color: var(--accent-primary);
  box-shadow: 0 0 15px rgba(var(--accent-primary-rgb), 0.3);
}

.drift-btn--secondary {
  background: rgba(var(--accent-primary-rgb), 0.03);
  color: var(--accent-primary);
  border-color: rgba(var(--accent-primary-rgb), 0.25);
}

.drift-btn--secondary:hover {
  border-color: var(--accent-primary);
  background: rgba(var(--accent-primary-rgb), 0.08);
  box-shadow: 0 0 12px rgba(var(--accent-primary-rgb), 0.15);
}

.drift-btn--ghost {
  background: transparent;
  color: var(--ink-secondary);
}

.drift-btn--ghost:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
}

.drift-btn--danger {
  background: rgba(var(--accent-danger-rgb), 0.1);
  color: var(--accent-danger);
  border-color: rgba(var(--accent-danger-rgb), 0.3);
}

.drift-btn--danger:hover {
  background: var(--accent-danger);
  color: #0b0b12;
  box-shadow: 0 0 15px rgba(var(--accent-danger-rgb), 0.35);
}

.drift-btn--sm {
  padding: 0.4rem 0.875rem;
  font-size: 0.8125rem;
}

.drift-btn--xs {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 4px;
}

/* ── Cards & Panels ── */
.drift-card {
  background: var(--panel);
  border: 1px solid var(--border-panel);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  transition: border-color var(--duration-base) var(--ease-out), 
              transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.drift-card:hover {
  border-color: rgba(var(--accent-primary-rgb), 0.2);
  box-shadow: var(--card-shadow-hover);
}

.drift-card--glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

.drift-card--interactive {
  cursor: pointer;
}

.drift-card--interactive:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

/* ── HUD Frame with Brackets ── */
.drift-hud-frame {
  position: relative;
  border: 1px solid rgba(var(--accent-primary-rgb), 0.15);
  background: rgba(11, 11, 18, 0.4);
  padding: 1.5rem;
}

.drift-hud-frame::before,
.drift-hud-frame::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--accent-primary);
  border-style: solid;
  pointer-events: none;
}

.drift-hud-frame::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.drift-hud-frame::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 2px 2px 0;
}

.drift-hud-readout {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: block;
}

/* ── Form Inputs ── */
.drift-input, .drift-textarea {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 0.625rem 0.875rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--ink);
  transition: all var(--duration-fast) var(--ease-out);
  width: 100%;
}

.drift-textarea {
  resize: vertical;
  min-height: 100px;
}

.drift-input::placeholder, .drift-textarea::placeholder {
  color: var(--ink-muted);
}

.drift-input:focus, .drift-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
  background: var(--panel);
}

.drift-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-secondary);
  margin-bottom: 0.375rem;
}

/* ── Status Indicators ── */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-sans);
}

.status-pill--active {
  background: rgba(52, 211, 153, 0.1);
  color: var(--accent-secondary);
  border: 1px solid rgba(52, 211, 153, 0.2);
}

.status-pill--warning {
  background: rgba(244, 114, 182, 0.1);
  color: var(--accent-warning);
  border: 1px solid rgba(244, 114, 182, 0.2);
}

.status-pill--danger {
  background: rgba(251, 113, 133, 0.1);
  color: var(--accent-danger);
  border: 1px solid rgba(251, 113, 133, 0.2);
}

.status-pill--muted {
  background: rgba(255, 255, 255, 0.03);
  color: var(--ink-secondary);
  border: 1px solid var(--border-panel);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot--emerald { background-color: var(--accent-secondary); }
.status-dot--teal { background-color: var(--accent-primary); }
.status-dot--rose { background-color: var(--accent-danger); }

.status-dot--pulsing {
  position: relative;
}

.status-dot--pulsing::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid currentColor;
  opacity: 1;
  animation: status-pulse 1.8s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

@keyframes status-pulse {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* ── Tables ── */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-panel);
  border-radius: 8px;
  background: var(--panel);
}

.drift-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.drift-table th {
  background: rgba(0, 0, 0, 0.2);
  padding: 0.875rem 1rem;
  font-weight: 600;
  color: var(--ink-secondary);
  border-bottom: 1px solid var(--border-panel);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.drift-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--ink);
  vertical-align: middle;
}

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

.drift-table tr:hover td {
  background: rgba(255, 255, 255, 0.015);
}

/* ── Scroll-to-Top Button ── */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  color: var(--ink-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--duration-base) var(--ease-out);
  z-index: 99;
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(var(--accent-primary-rgb), 0.25);
}

/* ── Grid/Layout Helpers ── */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

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

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

.grid-aside {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

@media (max-width: 980px) {
  .grid-2, .grid-3, .grid-4, .grid-aside {
    grid-template-columns: 1fr;
  }
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink-secondary);
}

.badge--primary {
  background: rgba(var(--accent-primary-rgb), 0.1);
  color: var(--accent-primary);
}

.badge--tertiary {
  background: rgba(var(--accent-tertiary-rgb), 0.1);
  color: var(--accent-tertiary);
}

/* ── Shared Status Strip component ── */
.status-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--panel);
  border: 1px solid var(--border-panel);
  border-radius: 8px;
}

.status-strip-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-strip-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-secondary);
  font-weight: 500;
}

.status-strip-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--ink);
  font-weight: 600;
}

/* ── Shared Metrics Grid ── */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.metric-card {
  display: flex;
  flex-direction: column;
}

.metric-card-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-secondary);
  margin-bottom: 0.5rem;
}

.metric-card-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.1;
}

.metric-card-sub {
  font-size: 0.75rem;
  color: var(--ink-muted);
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.trend-up {
  color: var(--accent-secondary);
}

.trend-down {
  color: var(--accent-danger);
}