/* =====================================================
   IP Check — $150k Agency Tier Redesign
   Tech: Vanilla CSS, High-End Visual Design System
   ===================================================== */

/* -----------------------------------------------------
   1. Design Tokens & Root
   ----------------------------------------------------- */
:root {
  /* Typography */
  --font-sans: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* Colors: Soft Structuralism with Manga Ink */
  --bg: #f5f5f5;
  --bg-paper: #ffffff;
  --bg-ink: #0a0a0a;
  --bg-hover: #f8f8f8;
  --bg-glass: rgba(255, 255, 255, 0.85);

  --fg: #0a0a0a;
  --fg-muted: #555555;
  --fg-subtle: #888888;
  --fg-light: #ffffff;

  --accent: #2563eb;
  --accent-dim: #1d4ed8;
  --accent-bg: rgba(37, 99, 235, 0.08);
  --accent-glow: rgba(37, 99, 235, 0.15);

  --danger: #dc2626;
  --danger-bg: rgba(220, 38, 38, 0.08);

  /* Surfaces */
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 2rem;
  --radius-full: 9999px;

  /* Shadows: Soft, diffused ambient */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-ink: 0 0 0 2px var(--bg-ink);

  /* Z-index scale */
  --z-base: 1;
  --z-above: 10;
  --z-sticky: 50;
  --z-skip-link: 100;
  --z-overlay: 200;

  /* Animation: Custom cubic-bezier curves */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-fluid: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-in-out-smooth: cubic-bezier(0.45, 0, 0.55, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 700ms;
  --duration-slower: 1000ms;
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  background: var(--bg) url('hero-bg-premium.png') center top / cover no-repeat fixed;
  color: var(--fg);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  letter-spacing: -0.01em;
  overflow-x: hidden;
}

/* Background overlay — layered for depth */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255, 255, 255, 0.92) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 100%, rgba(255, 255, 255, 0.88) 0%, transparent 50%),
    linear-gradient(180deg, rgba(245, 245, 245, 0.75) 0%, rgba(245, 245, 245, 0.94) 50%, rgba(245, 245, 245, 0.98) 100%);
  pointer-events: none;
}

/* Grain texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-base) - 1);
  opacity: 0.025;
  pointer-events: none;
  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)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* -----------------------------------------------------
   3. Utilities
   ----------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1.5rem;
  z-index: var(--z-skip-link);
  padding: 0.625rem 1.25rem;
  background: var(--bg-paper);
  color: var(--fg);
  border: 2px solid var(--fg);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: top var(--duration-fast) var(--ease-out-expo);
}

.skip-link:focus {
  top: 1rem;
  outline: none;
}

/* -----------------------------------------------------
   4. Scroll Entry Animations
   ----------------------------------------------------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(4rem);
  filter: blur(4px);
  transition: all var(--duration-slower) var(--ease-fluid);
  will-change: transform, opacity, filter;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Stagger delays for children */
.animate-on-scroll:nth-child(1) { transition-delay: 0ms; }
.animate-on-scroll:nth-child(2) { transition-delay: 80ms; }
.animate-on-scroll:nth-child(3) { transition-delay: 160ms; }
.animate-on-scroll:nth-child(4) { transition-delay: 240ms; }

/* -----------------------------------------------------
   5. Floating Pill Navbar
   ----------------------------------------------------- */
.floating-nav {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.625rem 1.25rem;
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: var(--shadow-md);
  z-index: var(--z-sticky);
  transition: all var(--duration-slow) var(--ease-fluid);
}

.floating-nav:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(-50%) translateY(-1px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--fg);
}

.nav-mark {
  font-weight: 400;
  opacity: 0.5;
}

.nav-text {
  font-weight: 700;
}

.nav-divider {
  width: 1px;
  height: 1rem;
  background: rgba(0, 0, 0, 0.1);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color var(--duration-normal) var(--ease-out-expo);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--fg);
  transition: width var(--duration-normal) var(--ease-out-expo);
}

.nav-link:hover {
  color: var(--fg);
}

.nav-link:hover::after {
  width: 100%;
}

/* -----------------------------------------------------
   6. Main Layout
   ----------------------------------------------------- */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
}

/* -----------------------------------------------------
   7. Hero: Editorial Split
   ----------------------------------------------------- */
.hero-section {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  padding: 8rem 2rem 6rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  gap: 3rem;
}

@media (min-width: 768px) {
  .hero-section {
    grid-template-columns: 1fr 1fr;
    padding: 8rem 3rem 6rem;
    gap: 4rem;
  }
}

.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-right {
  display: none;
}

@media (min-width: 768px) {
  .hero-right {
    display: block;
    position: relative;
  }

  .hero-bg-exposure {
    position: absolute;
    inset: -2rem;
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
  }
}

/* Eyebrow Badge */
.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-ink);
  color: var(--fg-light);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  width: fit-content;
  margin-bottom: 1.5rem;
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Hero Title / IP Address */
.hero-title {
  margin-bottom: 1.5rem;
}

.ip-address {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--fg);
  text-wrap: balance;
  font-variant-numeric: tabular-nums;
  display: block;
}

/* IP Meta Tags */
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.meta-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.875rem;
  background: var(--bg-paper);
  border: 1.5px solid var(--fg);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.meta-tag:empty {
  display: none;
}

.meta-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* -----------------------------------------------------
   8. Search: Double-Bezel
   ----------------------------------------------------- */
.search-bezel {
  background: rgba(0, 0, 0, 0.03);
  padding: 3px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.05);
  width: 100%;
  max-width: 520px;
  margin-bottom: 0.75rem;
}

.search-inner {
  background: var(--bg-paper);
  border-radius: calc(var(--radius-lg) - 3px);
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.8), var(--shadow-sm);
  overflow: hidden;
}

.search-form {
  position: relative;
  display: flex;
  align-items: center;
}

.ip-input {
  flex: 1;
  padding: 1rem 3.5rem 1rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.5;
  outline: none;
}

.ip-input::placeholder {
  color: var(--fg-subtle);
  font-weight: 300;
}

.search-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-ink);
  border: none;
  border-radius: calc(var(--radius-lg) - 6px);
  color: var(--fg-light);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-fluid);
}

.search-btn:hover {
  background: var(--accent);
  transform: translateY(-50%) scale(1.08);
  box-shadow: var(--shadow-md);
}

.search-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.search-btn .btn-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-slow) var(--ease-fluid);
}

.search-btn:hover .btn-icon-wrapper {
  transform: translate(1px, -1px) scale(1.1);
}

.input-help {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--fg-subtle);
  letter-spacing: 0.03em;
  margin-left: 0.5rem;
}

/* -----------------------------------------------------
   9. Hero Actions
   ----------------------------------------------------- */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Magnetic Button Architecture */
.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--duration-slow) var(--ease-fluid);
  position: relative;
}

.action-btn--primary {
  background: var(--bg-ink);
  color: var(--fg-light);
  border: none;
}

.action-btn--primary:hover {
  background: var(--accent);
  transform: scale(1.03) translateY(-1px);
  box-shadow: var(--shadow-md);
}

.action-btn--primary:active {
  transform: scale(0.98);
}

.action-btn--secondary {
  background: var(--bg-paper);
  color: var(--fg-muted);
  border: 1.5px solid var(--fg);
}

.action-btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.03) translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.action-btn--secondary:active {
  transform: scale(0.98);
}

.action-btn svg {
  transition: all var(--duration-slow) var(--ease-fluid);
}

.action-btn:hover svg {
  transform: translate(1px, -1px) scale(1.1);
}

/* Copy tooltip */
.copy-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  padding: 4px 10px;
  background: var(--bg-ink);
  color: var(--fg-light);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.copy-tooltip.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Privacy chevron */
.privacy-chevron {
  transition: transform var(--duration-normal) var(--ease-out-expo);
  opacity: 0.5;
}

.action-btn[aria-expanded="true"] .privacy-chevron {
  transform: rotate(180deg);
}

/* Privacy tooltip */
.privacy-tooltip {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  width: 280px;
  padding: 1rem;
  background: var(--bg-paper);
  border: 1.5px solid var(--fg);
  box-shadow: var(--shadow-lg);
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.6;
  z-index: var(--z-above);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.privacy-tooltip[hidden] {
  display: block;
  opacity: 0;
  transform: translateY(-6px) scale(0.96);
  pointer-events: none;
}

.privacy-tooltip:not([hidden]) {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* -----------------------------------------------------
   10. Results: Asymmetrical Bento
   ----------------------------------------------------- */
.results-section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 768px) {
  .results-section {
    padding: 8rem 3rem;
  }
}

.section-header {
  margin-bottom: 2.5rem;
}

.results-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  padding: 0.5rem 1rem;
  background: var(--bg-ink);
  color: var(--fg-light);
  display: inline-block;
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto auto;
  }

  .bento-card--large {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .bento-card--large {
    grid-column: span 2;
    grid-row: span 1;
  }
}

/* Double-Bezel Card */
.card-bezel {
  background: rgba(0, 0, 0, 0.02);
  padding: 3px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.04);
  height: 100%;
  transition: all var(--duration-slow) var(--ease-fluid);
}

.card-bezel:hover {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card-inner {
  background: var(--bg-paper);
  border-radius: calc(var(--radius-lg) - 3px);
  padding: 1.75rem;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.8);
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* Top accent line */
.card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--fg);
}

/* Theme colors */
.result-card--ip .card-inner::before { background: var(--accent); }
.result-card--geo .card-inner::before { background: #16a34a; }
.result-card--net .card-inner::before { background: #9333ea; }

/* Hover glow */
.card-inner::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo);
  pointer-events: none;
  border-radius: inherit;
}

.result-card--ip .card-inner::after {
  background: radial-gradient(circle at 30% 30%, rgba(37, 99, 235, 0.05), transparent 60%);
}
.result-card--geo .card-inner::after {
  background: radial-gradient(circle at 70% 30%, rgba(22, 163, 74, 0.05), transparent 60%);
}
.result-card--net .card-inner::after {
  background: radial-gradient(circle at 30% 70%, rgba(147, 51, 234, 0.05), transparent 60%);
}

.card-bezel:hover .card-inner::after {
  opacity: 1;
}

/* Card Title */
.result-card-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.result-card-icon {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

/* Result List */
.result-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
}

.result-row:last-child {
  border-bottom: none;
}

.result-row dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--fg-subtle);
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.result-row dd {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--fg);
  text-align: right;
  word-break: break-all;
  font-family: var(--font-mono);
}

/* -----------------------------------------------------
   11. Empty State
   ----------------------------------------------------- */
.empty-state {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.empty-content {
  max-width: 400px;
}

.empty-hint {
  font-size: 1rem;
  font-weight: 300;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* -----------------------------------------------------
   12. Error State
   ----------------------------------------------------- */
.error-state {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.error-box {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--danger-bg);
  border: 2px solid var(--danger);
  max-width: 520px;
}

.error-icon {
  flex-shrink: 0;
  color: var(--danger);
  margin-top: 2px;
}

.error-title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--danger);
  margin-bottom: 0.375rem;
}

.error-message {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--fg-muted);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.retry-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  border: 2px solid var(--danger);
  color: var(--danger);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-fluid);
}

.retry-btn:hover {
  background: var(--danger-bg);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.retry-btn:active {
  transform: scale(0.97);
}

/* -----------------------------------------------------
   13. Loading State
   ----------------------------------------------------- */
.loading-state {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  overflow: hidden;
}

.loading-content {
  position: relative;
}

.terminal-typing {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--fg-muted);
  margin-bottom: 2rem;
  min-height: 1.5rem;
}

.terminal-prefix {
  color: var(--accent);
  font-weight: 500;
}

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--fg);
  animation: cursor-blink 1s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Radar scan overlay */
.loading-content::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  margin: -150px 0 0 -150px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.04);
  background: conic-gradient(from 0deg, transparent 300deg, rgba(37, 99, 235, 0.03) 360deg);
  animation: radar-spin 2s linear infinite;
  pointer-events: none;
  opacity: 0.4;
}

@keyframes radar-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Skeleton */
.skeleton-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  width: 100%;
}

@media (min-width: 768px) {
  .skeleton-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .skeleton-card--large {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .skeleton-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skeleton-card {
  background: var(--bg-paper);
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skeleton-title {
  width: 80px;
  height: 14px;
  background: linear-gradient(90deg, var(--bg-hover) 25%, #e8e8e8 50%, var(--bg-hover) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.skeleton-line {
  width: 100%;
  height: 12px;
  background: linear-gradient(90deg, var(--bg-hover) 25%, #e8e8e8 50%, var(--bg-hover) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.skeleton-line:nth-child(3) { width: 85%; }
.skeleton-line:nth-child(4) { width: 70%; }
.skeleton-line:nth-child(5) { width: 90%; }

.skeleton-card:nth-child(1) .skeleton-title,
.skeleton-card:nth-child(1) .skeleton-line { animation-delay: 0ms; }
.skeleton-card:nth-child(2) .skeleton-title,
.skeleton-card:nth-child(2) .skeleton-line { animation-delay: 100ms; }
.skeleton-card:nth-child(3) .skeleton-title,
.skeleton-card:nth-child(3) .skeleton-line { animation-delay: 200ms; }

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* -----------------------------------------------------
   14. Footer
   ----------------------------------------------------- */
.site-footer {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  border-top: 1px dashed rgba(0, 0, 0, 0.1);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-curl {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--fg-subtle);
  letter-spacing: 0.01em;
}

.footer-copy {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--fg-subtle);
  letter-spacing: 0.01em;
}

/* -----------------------------------------------------
   15. Global Focus
   ----------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  transition: outline-offset var(--duration-fast) var(--ease-out-expo);
}

/* -----------------------------------------------------
   16. Reduced Motion Overrides
   ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .terminal-cursor {
    animation: none;
    opacity: 1;
  }
  .loading-content::after {
    animation: none;
    opacity: 0;
  }
  .skeleton-title,
  .skeleton-line {
    animation: none;
    background: var(--bg-hover);
  }
  .eyebrow-dot {
    animation: none;
  }
  .privacy-tooltip[hidden] {
    display: none;
  }
  .privacy-tooltip:not([hidden]) {
    display: block;
  }
}