:root {
  --bg-gradient-1: #0a0e17;
  --bg-gradient-2: #151c2c;
  --bg-gradient-3: #0d1321;
  --modal-bg-1: #1a2235;
  --modal-bg-2: #151c2c;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.5);
  --text-muted: rgba(255, 255, 255, 0.35);
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.1);
  --icon-color: rgba(255, 255, 255, 0.4);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

[data-theme="light"] {
  --bg-gradient-1: #e8edf5;
  --bg-gradient-2: #f5f7fa;
  --bg-gradient-3: #e0e5ee;
  --modal-bg-1: #ffffff;
  --modal-bg-2: #f8f9fc;
  --text-primary: #1a1a1a;
  --text-secondary: rgba(0, 0, 0, 0.5);
  --text-muted: rgba(0, 0, 0, 0.35);
  --input-bg: rgba(0, 0, 0, 0.03);
  --input-border: rgba(0, 0, 0, 0.1);
  --icon-color: rgba(0, 0, 0, 0.4);
}

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

html, body {
  position: fixed;
  width: 100%;
  height: 100%;
  overscroll-behavior: none;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, var(--bg-gradient-1) 0%, var(--bg-gradient-2) 50%, var(--bg-gradient-3) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  padding-top: calc(20px + var(--safe-top));
  padding-bottom: calc(20px + var(--safe-bottom));
  transition: background 0.3s ease;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.login-overlay {
  width: 100%;
  max-width: 440px;
}

.login-modal {
  background: linear-gradient(180deg, var(--modal-bg-1) 0%, var(--modal-bg-2) 100%);
  border-radius: 20px;
  padding: 40px 36px;
  position: relative;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3),
              0 0 0 1px var(--input-border);
  transition: background 0.3s ease;
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--icon-color);
  font-size: 24px;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: all 0.2s;
}

.close-btn:hover {
  background: var(--input-bg);
  color: var(--text-primary);
}

.modal-header {
  text-align: center;
  margin-bottom: 32px;
}

.modal-header h1 {
  color: var(--text-primary);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

.input-group {
  position: relative;
  margin-bottom: 16px;
}

.input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--icon-color);
  display: flex;
  align-items: center;
}

.input-group input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  padding: 16px 48px;
  font-size: 15px;
  color: var(--text-primary);
  transition: all 0.2s;
}

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

.input-group input:focus {
  outline: none;
  border-color: rgba(139, 92, 246, 0.5);
  background: var(--input-bg);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.toggle-password {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--icon-color);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
}

.toggle-password:hover {
  color: var(--text-primary);
}

.options-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.remember-me {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  position: relative;
  padding-left: 28px;
}

.remember-me input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkmark {
  position: absolute;
  left: 0;
  width: 18px;
  height: 18px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  transition: all 0.2s;
}

.remember-me:hover .checkmark {
  border-color: var(--icon-color);
}

.remember-me input:checked ~ .checkmark {
  background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
  border-color: transparent;
}

.remember-me input:checked ~ .checkmark::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.forgot-link {
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}

.forgot-link:hover {
  color: var(--text-primary);
}

.btn-signin {
  width: 100%;
  padding: 16px;
  background: #ffffff;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  color: #0f172a;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 12px;
}

.btn-signin:hover {
  background: #f1f5f9;
  transform: translateY(-1px);
}

.btn-signin:active {
  transform: translateY(0);
}

.btn-wallet {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-wallet:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-wallet:active {
  transform: translateY(0);
}

.status-message {
  text-align: center;
  font-size: 14px;
  margin-top: 16px;
  color: var(--text-secondary);
  min-height: 20px;
}

.status-message.error {
  color: #f87171;
}

.trust-section {
  text-align: center;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--input-border);
}

.trust-text {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 16px;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.social-icons a {
  color: var(--icon-color);
  transition: color 0.2s;
}

.social-icons a:hover {
  color: var(--text-primary);
}

.signup-link {
  text-align: center;
  margin-top: 24px;
  color: var(--text-secondary);
  font-size: 14px;
}

.signup-link a {
  color: var(--text-primary);
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}

.signup-link a:hover {
  opacity: 0.8;
}

.security-badges {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.badge {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--icon-color);
  font-size: 12px;
}

.badge svg {
  opacity: 0.6;
}

@media (max-width: 480px) {
  .login-modal {
    padding: 32px 24px;
  }
  
  .modal-header h1 {
    font-size: 24px;
  }
  
  .security-badges {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  
  .options-row {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}