/* ===== Google Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ===== Design Tokens ===== */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.6);
  --bg-card-hover: rgba(17, 24, 39, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(0, 209, 209, 0.25);

  --accent: #00d1d1;
  --accent-dim: #00a3a3;
  --accent-glow: rgba(0, 209, 209, 0.15);
  --accent-glow-strong: rgba(0, 209, 209, 0.35);
  --accent-secondary: #6366f1;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #00d1d1;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px rgba(0, 209, 209, 0.1);
  --shadow-glow-strong: 0 0 60px rgba(0, 209, 209, 0.15);

  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --nav-height: 64px;
}

/* ===== Lucide Icon Defaults ===== */
[data-lucide] {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
}

.card-icon [data-lucide],
.feat-icon [data-lucide] {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 5px;
}

.tool-card-icon [data-lucide] {
  width: 22px;
  height: 22px;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Background Effects ===== */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0, 209, 209, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(99, 102, 241, 0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.nav-logo .logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  padding: 3px;
  box-shadow: 0 0 12px rgba(0, 209, 209, 0.1);
}

.nav-logo span {
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* ===== Main Content ===== */
.main {
  position: relative;
  z-index: 1;
  padding-top: var(--nav-height);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Hero Section (Homepage) ===== */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--nav-height));
  text-align: center;
  padding: 2rem 1.5rem;
}

.hero-subtitle {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.2s forwards;
}

.ip-display-wrapper {
  position: relative;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.4s forwards;
}

.ip-display {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  letter-spacing: -1px;
  line-height: 1.2;
}

.ip-display-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  animation: pulse-glow 3s ease-in-out infinite;
}

.ip-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.6s forwards;
}

.ip-version-badge {
  display: inline-block;
  padding: 0.2rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--border-glow);
  margin-left: 0.5rem;
}

/* ===== Quick Info Cards ===== */
.quick-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  max-width: 700px;
  width: 100%;
  margin-top: 1rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.8s forwards;
}

.info-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  transition: all var(--transition-base);
}

.info-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.info-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.info-card .card-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.info-card .card-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ===== Location Map ===== */
.map-wrapper {
  width: 100%;
  max-width: 700px;
  margin-top: 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
  opacity: 0;
  animation: fadeInUp 0.6s ease 1s forwards;
}

.map-wrapper:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.ip-map {
  width: 100%;
  height: 220px;
  background: var(--bg-secondary);
}

/* Dark map tiles override */
.leaflet-container {
  background: var(--bg-secondary) !important;
}

.leaflet-control-zoom a {
  background: var(--bg-card) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-subtle) !important;
}

.leaflet-control-zoom a:hover {
  background: var(--bg-card-hover) !important;
}

.leaflet-control-attribution {
  background: rgba(10, 14, 26, 0.7) !important;
  color: var(--text-muted) !important;
  font-size: 0.65rem !important;
}

.leaflet-control-attribution a {
  color: var(--accent-dim) !important;
}

/* ===== Copy Button ===== */
.copy-btn {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.7s forwards;
}

.copy-btn:hover {
  background: var(--accent-glow);
  border-color: var(--border-glow);
  color: var(--accent);
}

.copy-btn.copied {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

/* ===== Page Header ===== */
.page-header {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Tools Grid ===== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
  padding-bottom: 4rem;
}

.tool-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  opacity: 0;
  animation: fadeInUp 0.5s ease forwards;
}

.tool-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.tool-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}

.tool-card-header:hover {
  background: var(--bg-glass-hover);
}

.tool-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.tool-card-icon.ip {
  background: rgba(0, 209, 209, 0.12);
}

.tool-card-icon.screen {
  background: rgba(99, 102, 241, 0.12);
}

.tool-card-icon.fingerprint {
  background: rgba(244, 63, 94, 0.12);
}

.tool-card-icon.browser {
  background: rgba(251, 191, 36, 0.12);
}

.tool-card-icon.os {
  background: rgba(34, 197, 94, 0.12);
}

.tool-card-icon.vpn {
  background: rgba(168, 85, 247, 0.12);
}

.tool-card-icon.language {
  background: rgba(59, 130, 246, 0.12);
}

.tool-card-icon.connection {
  background: rgba(236, 72, 153, 0.12);
}

.tool-card-icon.webrtc {
  background: rgba(245, 158, 11, 0.12);
}

.tool-card-icon.ports {
  background: rgba(20, 184, 166, 0.12);
}

.tool-card-title {
  flex: 1;
}

.tool-card-title h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tool-card-title p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.tool-card-toggle {
  color: var(--text-muted);
  font-size: 1rem;
  transition: transform var(--transition-base);
}

.tool-card.open .tool-card-toggle {
  transform: rotate(180deg);
}

.tool-card-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card.open .tool-card-body {
  max-height: 800px;
}

.tool-card-content {
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

/* ===== Tool Data Rows ===== */
.data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.data-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.data-value {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  font-family: var(--font-mono);
  text-align: right;
  max-width: 60%;
  word-break: break-all;
}

.data-value.accent {
  color: var(--accent);
}

.data-value.warn {
  color: #f59e0b;
}

.data-value.danger {
  color: #ef4444;
}

.data-value.success {
  color: #22c55e;
}

/* ===== Status Badges ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.success {
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge.warning {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge.danger {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge.info {
  background: rgba(0, 209, 209, 0.12);
  color: var(--accent);
  border: 1px solid var(--border-glow);
}

/* ===== App Page ===== */
.app-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--nav-height));
  text-align: center;
  padding: 3rem 1.5rem;
}

.app-icon {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-glow-strong);
  animation: float 3s ease-in-out infinite;
}

.app-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.app-hero .tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 2.5rem;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  color: var(--bg-primary);
  padding: 1rem 2.5rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(0, 209, 209, 0.3);
  font-family: var(--font-sans);
  border: none;
  cursor: pointer;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 209, 209, 0.4);
}

.download-btn .btn-icon {
  font-size: 1.2rem;
}

/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
  max-width: 900px;
  width: 100%;
  margin-top: 3rem;
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: left;
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.feature-card .feat-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== Google Ads Slots ===== */
.ad-slot {
  border-radius: var(--radius-sm);
  text-align: center;
  margin: 1.5rem auto;
  max-width: 728px;
  min-height: 0;
  display: none;
}

.ad-slot.active {
  display: block;
  min-height: 90px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* ===== Loading Skeleton ===== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-glass) 25%, var(--bg-glass-hover) 50%, var(--bg-glass) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
  color: transparent !important;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
  }
}

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

  100% {
    background-position: 200% 0;
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav {
    padding: 0 1rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
    width: 100%;
    text-align: center;
  }

  .nav-toggle {
    display: block;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .quick-info {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 1.5rem 1rem;
  }
}

@media (max-width: 480px) {
  .quick-info {
    grid-template-columns: 1fr;
  }

  .ip-display {
    font-size: 2rem;
  }
}