* {
  box-sizing: border-box;
}

:root {
  --primary-bg: #0a0a0f;
  --secondary-bg: #111118;
  --accent-purple: #8b5cf6;
  --accent-purple-light: #a78bfa;
  --accent-purple-dark: #7c3aed;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: rgba(139, 92, 246, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.4);
  color-scheme: dark;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--primary-bg);
  color: var(--text-primary);
  overflow: hidden;
}

body {
  background:
    radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
    linear-gradient(135deg, var(--primary-bg) 0%, #0f0f1a 100%);
}

.browser-shell {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: transparent;
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  position: relative;
}

.browser-shell::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(135deg, rgba(139, 92, 246, 0.03) 0%, rgba(139, 92, 246, 0.01) 100%);
  pointer-events: none;
  z-index: -1;
}

/* Title Bar */
.title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 10;
}

.window-controls {
  display: flex;
  gap: 8px;
}

.control {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transition: all 0.2s ease;
  cursor: pointer;
}

.control:hover {
  transform: scale(1.1);
}

.control.red { background: #ef4444; }
.control.yellow { background: #f59e0b; }
.control.green { background: #10b981; }

.window-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.window-actions {
  display: flex;
  gap: 8px;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.tool-button {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 500;
}

.tool-button:hover:not(:disabled) {
  background: rgba(139, 92, 246, 0.1);
  border-color: var(--accent-purple);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.tool-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.address-input {
  flex: 1;
  height: 40px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  color: var(--text-primary);
  padding: 0 16px;
  outline: none;
  transition: all 0.2s ease;
  font-size: 14px;
}

.address-input::placeholder {
  color: var(--text-muted);
}

.address-input:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
  background: rgba(255, 255, 255, 0.08);
}

.go-button {
  margin-left: 8px;
  min-width: 60px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-purple-light) 100%);
  border: 1px solid var(--accent-purple);
  color: white;
}

.go-button:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-purple-dark) 0%, var(--accent-purple) 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

/* Tabs */
.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px 12px 0 0;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 13px;
  font-weight: 500;
  position: relative;
  min-width: 120px;
  max-width: 200px;
}

.tab:hover {
  background: rgba(139, 92, 246, 0.05);
  border-color: rgba(139, 92, 246, 0.3);
}

.tab.active {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
  border-color: var(--accent-purple);
  color: var(--text-primary);
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.2);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-purple-light));
  border-radius: 1px 1px 0 0;
}

.tab-favicon {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  flex-shrink: 0;
}

.tab-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tab-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  border-radius: 4px;
  font-size: 12px;
  line-height: 1;
  opacity: 0.7;
  transition: all 0.2s ease;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tab-close:hover {
  opacity: 1;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.tab.add {
  width: 40px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  margin-left: 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}

.tab.add:hover {
  background: rgba(139, 92, 246, 0.1);
  border-color: var(--accent-purple);
}

/* Browser Content */
.browser-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: transparent;
}

.content-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  overflow: auto;
  background: transparent;
}

.webview-container {
  flex: 1;
  display: flex;
  background: var(--secondary-bg);
  border-radius: 0;
}

.browser-webview,
.browser-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: var(--secondary-bg);
  border-radius: 0;
}

.content-card {
  max-width: 800px;
  padding: 48px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.content-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-purple), transparent);
}

.content-title {
  margin: 0 0 16px 0;
  font-size: clamp(2.5rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-purple-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.content-subtitle {
  margin: 0 0 24px 0;
  color: var(--accent-purple-light);
  font-size: 1.2rem;
  font-weight: 500;
  opacity: 0.9;
}

.content-body {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 1rem;
}

/* Beta Warning */
.beta-warning {
  padding: 16px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.beta-warning-text {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.content-card {
  animation: fadeIn 0.6s ease-out;
}

.tab {
  animation: fadeIn 0.3s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
  .title-bar,
  .toolbar,
  .tabs {
    padding: 12px 16px;
  }

  .content-container {
    padding: 20px;
  }

  .content-card {
    padding: 32px 24px;
  }

  .content-title {
    font-size: 2rem;
  }

  .tool-button {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .address-input {
    height: 36px;
    font-size: 13px;
  }

  .tab {
    min-width: 100px;
    max-width: 150px;
    padding: 6px 12px;
    font-size: 12px;
  }
}