:root {
  --primary-start: #6366f1;
  --primary-end: #8b5cf6;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: rgba(99, 102, 241, 0.1);
  --background: #0a0e1a;
  --background-secondary: #111827;
  --background-card: rgba(17, 24, 39, 0.8);
  --background-card-hover: rgba(17, 24, 39, 0.95);
  --foreground: #ffffff;
  --foreground-secondary: #9ca3af;
  --foreground-muted: #6b7280;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-error: #ef4444;
  --border: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --transition-fast: 150ms;
  --transition-normal: 300ms;
  --transition-slow: 500ms;
  --font-family-base: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}

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

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

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-family-base);
  line-height: 1.6;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.background-decoration {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  top: -100px;
  right: -50px;
  width: 300px;
  height: 300px;
  background: var(--primary-start);
}

.orb-2 {
  bottom: -80px;
  left: -50px;
  width: 250px;
  height: 250px;
  background: var(--primary-end);
  animation-delay: -7s;
}

.orb-3 {
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  background: var(--accent-success);
  opacity: 0.15;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(12px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.main-wrapper {
  position: relative;
  z-index: 1;
  padding: var(--spacing-xl) 0;
}

.hero-section {
  padding: var(--spacing-xl) 0;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.hero-title {
  margin-bottom: var(--spacing-sm);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  background: linear-gradient(135deg, var(--foreground) 0%, var(--foreground-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  max-width: 600px;
  margin: 0 auto;
  color: var(--foreground-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.wallet-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  background: rgba(239, 68, 68, 0.1);
  animation: slideDown 0.3s ease-out;
}

.wallet-status.hidden,
.hidden {
  display: none !important;
}

.status-icon {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.18);
  color: var(--accent-error);
  font-weight: 700;
}

.status-text {
  color: var(--foreground);
  font-size: 0.875rem;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tokens-section {
  margin-bottom: var(--spacing-lg);
}

.token-heading {
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
  text-align: center;
}

.token-heading h2 {
  color: var(--foreground);
  font-size: 1.25rem;
  font-weight: 600;
}

.token-heading p {
  margin-top: var(--spacing-xs);
  color: var(--foreground-secondary);
  font-size: 0.9rem;
}

.token-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
}

.token-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  min-height: 40px;
  padding: 0 var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  color: var(--foreground);
  font-size: 0.875rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.token-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
}

.chains-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.chain-card {
  padding: var(--spacing-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--background-card);
  backdrop-filter: blur(8px);
  transition: all var(--transition-normal) ease;
}

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

.chain-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.chain-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #627eea 0%, #4d6bfe 100%);
  box-shadow: var(--shadow-md);
}

.chain-info {
  flex: 1;
  min-width: 0;
}

.chain-name {
  margin-bottom: var(--spacing-xs);
  color: var(--foreground);
  font-size: 1.25rem;
  font-weight: 600;
}

.chain-id {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--foreground-secondary);
  font-family: Inter, monospace;
  font-size: 0.875rem;
}

.chain-details {
  display: grid;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.detail-label {
  color: var(--foreground-muted);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: uppercase;
}

.detail-value {
  color: var(--foreground);
  font-family: Inter, monospace;
  font-size: 0.875rem;
  word-break: break-word;
}

.chain-note {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.1);
  color: #a5b4fc;
  font-size: 0.875rem;
}

.switch-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  overflow: hidden;
  border: none;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  box-shadow: var(--shadow-md);
  color: #ffffff;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-fast) ease;
}

.switch-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow) ease;
}

.switch-button:hover::before {
  left: 100%;
}

.switch-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.switch-button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.button-icon {
  transition: transform var(--transition-fast) ease;
}

.switch-button:hover .button-icon {
  transform: translateX(4px);
}

.guide-section {
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--background-card);
}

.guide-title {
  margin-bottom: var(--spacing-lg);
  color: var(--foreground);
  font-size: 1.25rem;
  font-weight: 600;
}

.guide-description {
  margin: calc(var(--spacing-lg) * -0.65) 0 var(--spacing-lg);
  color: var(--foreground-secondary);
  font-size: 0.95rem;
}

.guide-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.guide-step {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.step-number {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
}

.step-text {
  flex: 1;
  padding-top: 2px;
  color: var(--foreground-secondary);
  font-size: 0.95rem;
}

.footer {
  position: relative;
  z-index: 1;
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--border);
}

.footer-note {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  color: var(--foreground);
  font-size: 1rem;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  list-style: none;
}

.footer-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--foreground-secondary);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-list li::before {
  content: "";
  position: absolute;
  top: 0.72rem;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  width: 100%;
  max-width: 400px;
  padding: var(--spacing-xl);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--background-secondary);
  box-shadow: var(--shadow-lg);
  text-align: center;
  animation: scaleIn 0.3s ease-out;
}

.modal-icon {
  margin-bottom: var(--spacing-md);
}

.modal-title {
  margin-bottom: var(--spacing-sm);
  color: var(--foreground);
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-description {
  margin-bottom: var(--spacing-lg);
  color: var(--foreground-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.modal-button {
  flex: 1;
  padding: var(--spacing-md);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-fast) ease;
}

.modal-button-secondary {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--foreground-secondary);
}

.modal-button-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--foreground);
}

.modal-button-primary {
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  color: #ffffff;
}

.modal-button-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.toast {
  position: fixed;
  top: var(--spacing-lg);
  left: 50%;
  z-index: 1001;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  max-width: min(92vw, 520px);
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--background-secondary);
  box-shadow: var(--shadow-lg);
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  transition: all var(--transition-normal) ease;
}

.toast.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-20px);
}

.toast-icon {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
}

.toast.toast-error .toast-icon {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-error);
}

.toast.toast-success .toast-icon {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-success);
}

.toast-message {
  flex: 1;
  color: var(--foreground);
  font-size: 0.9rem;
}

.toast-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  background: none;
  color: var(--foreground-muted);
  cursor: pointer;
  font-size: 1.25rem;
  transition: color var(--transition-fast) ease;
}

.toast-close:hover {
  color: var(--foreground);
}

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

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }
}

@media (min-width: 1024px) {
  .hero-section {
    padding: var(--spacing-2xl) 0;
  }

  .hero-title {
    font-size: 3rem;
  }

  .chain-card {
    padding: var(--spacing-xl);
  }

  .chain-details {
    grid-template-columns: repeat(3, 1fr);
  }

  .guide-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .chain-card,
  .guide-section,
  .modal-content {
    padding: var(--spacing-lg);
  }

  .chain-icon-wrapper {
    width: 48px;
    height: 48px;
  }

  .chain-name {
    font-size: 1.125rem;
  }
}

@media (hover: none) {
  .switch-button:hover {
    transform: none;
  }

  .switch-button:active {
    transform: scale(0.98);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .orb {
    animation: none;
  }
}