/* Global Variables */
:root {
  --primary-color: #00E6C3;
  --primary-color-dark: #00B39A;
  --secondary-color: #0D1F2D;
  --accent-color: #46B8FF;
  --danger-color: #FF5252;
  --light-bg: #F5F7FA;
  --dark-bg: #13181F;
  --light-card-bg: #FFFFFF;
  --dark-card-bg: #1E2530;
  --light-text: #333333;
  --dark-text: #E6E6E6;
  --light-border: #EAEAEA;
  --dark-border: #2D3748;
  --warning-bg: rgba(255, 152, 0, 0.1);
  --warning-color: #FF9800;
  --transition-speed: 0.3s;
  --border-radius: 12px;
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  transition: background-color var(--transition-speed), color var(--transition-speed);
  min-height: 100vh;
}

body.light-mode {
  background-color: var(--light-bg);
  color: var(--light-text);
}

body.dark-mode {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Header Styles */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid;
  border-color: var(--dark-border);
}

.light-mode header {
  border-color: var(--light-border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo i {
  font-size: 28px;
  color: var(--primary-color);
}

.logo h1 {
  font-size: 24px;
  font-weight: 600;
}

.theme-toggle button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  color: var(--dark-text);
  padding: 8px;
  border-radius: 50%;
  transition: background-color var(--transition-speed);
}

.light-mode .theme-toggle button {
  color: var(--light-text);
}

.theme-toggle button:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.light-mode .theme-toggle button:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

/* Card Styles */
.card {
  background-color: var(--dark-card-bg);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: 30px;
  overflow: hidden;
  transition: background-color var(--transition-speed);
}

.light-mode .card {
  background-color: var(--light-card-bg);
}

.card-header {
  padding: 20px;
  border-bottom: 1px solid;
  border-color: var(--dark-border);
  background-color: rgba(0, 230, 195, 0.05);
}

.light-mode .card-header {
  border-color: var(--light-border);
}

.card-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
}

/* Form Styles */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid;
  border-color: var(--dark-border);
  border-radius: var(--border-radius);
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--dark-text);
  font-size: 14px;
  transition: all var(--transition-speed);
}

.light-mode .form-control {
  border-color: var(--light-border);
  background-color: var(--light-bg);
  color: var(--light-text);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 230, 195, 0.2);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2300E6C3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  background-size: 16px;
  padding-right: 40px;
}

textarea.form-control {
  min-height: 80px;
  resize: none;
}

.input-group {
  display: flex;
  align-items: center;
}

.input-group .form-control {
  flex-grow: 1;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--secondary-color);
}

.btn-primary:hover {
  background-color: var(--primary-color-dark);
}

.btn-secondary {
  background-color: rgba(70, 184, 255, 0.1);
  color: var(--accent-color);
}

.btn-secondary:hover {
  background-color: rgba(70, 184, 255, 0.2);
}

.btn-icon {
  width: 45px;
  height: 45px;
  padding: 0;
  font-size: 16px;
  background-color: rgba(0, 230, 195, 0.1);
  color: var(--primary-color);
}

.btn-icon:hover {
  background-color: rgba(0, 230, 195, 0.2);
}

.btn-group {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

/* Warning Styles */
.warning {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  margin-top: 8px;
  border-radius: var(--border-radius);
  background-color: var(--warning-bg);
  color: var(--warning-color);
  font-size: 13px;
}

.warning i {
  font-size: 16px;
}

/* QR Code Styles */
.qr-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  margin: 20px 0;
}

.qr-code-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  min-width: 200px;
}

.qr-code-group h3 {
  margin-bottom: 15px;
  font-size: 16px;
  font-weight: 500;
}

/* Network Grid */
.network-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 15px;
}

.network-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 15px;
  border-radius: var(--border-radius);
  background-color: rgba(255, 255, 255, 0.05);
  transition: background-color var(--transition-speed);
}

.light-mode .network-item {
  background-color: rgba(0, 0, 0, 0.03);
}

.network-item i {
  font-size: 24px;
  margin-bottom: 10px;
  color: var(--primary-color);
}

/* Donation Section */
.donation-address {
  display: flex;
  margin-bottom: 20px;
}

#donation-qr {
  display: flex;
  justify-content: center;
  margin: 20px 0;
}

/* Footer Styles */
footer {
  text-align: center;
  margin-top: 50px;
  padding-top: 20px;
  border-top: 1px solid;
  border-color: var(--dark-border);
  font-size: 14px;
}

.light-mode footer {
  border-color: var(--light-border);
}

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

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

.disclaimer {
  margin-top: 10px;
  font-size: 12px;
  opacity: 0.7;
}

/* Utility Classes */
.hidden {
  display: none;
}

/* Paper Wallet Styles */
.paper-wallet {
  display: none;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 30px;
  background-color: white;
  color: black;
  font-family: 'Courier New', monospace;
}

.paper-wallet-header {
  text-align: center;
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid #000;
}

.paper-wallet-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.paper-wallet-section {
  padding: 20px;
  border: 1px solid #000;
  border-radius: 5px;
}

.paper-wallet-section h2 {
  margin-bottom: 15px;
  text-align: center;
}

.paper-wallet-section.private {
  background-color: #f8f8f8;
  border: 2px dashed #000;
}

.paper-wallet-qr {
  display: flex;
  justify-content: center;
  margin: 15px 0;
}

.paper-wallet-text {
  word-break: break-all;
  font-size: 12px;
  text-align: center;
}

.paper-wallet-mnemonic {
  margin-top: 30px;
  padding: 20px;
  border: 2px dashed #000;
  background-color: #f8f8f8;
}

.paper-wallet-instructions {
  margin-top: 30px;
}

.paper-wallet-instructions ol {
  margin-left: 20px;
}

.paper-wallet-footer {
  margin-top: 30px;
  text-align: center;
  font-size: 12px;
}

/* Media Queries */
@media (max-width: 768px) {
  .container {
      padding: 15px;
  }
  
  .logo h1 {
      font-size: 20px;
  }
  
  .btn {
      padding: 10px 15px;
  }
  
  .network-grid {
      grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }
}

@media print {
  body * {
      visibility: hidden;
  }
  
  .paper-wallet, .paper-wallet * {
      visibility: visible;
  }
  
  .paper-wallet {
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: auto;
  }
}