:root {
  --primary: #4299e1; 
  --primary-dark: #3182ce; 
  --success: #48bb78; 
  --error: #f56565;
  --text: #2d3748; 
  --text-light: #718096; 
  --bg: #f5f7fa;
  --bg2: #3d6198;  
  --card-bg: #fff; 
  --border: #e2e8f0;
  --dark-bg: #1a202c; 
  --dark-card: #2d3748; 
  --dark-text: #e2e8f0; 
  --dark-border: #4a5568;
}

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

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  padding: 1rem;
  background: var(--bg2); 
  color: var(--text); 
  min-height: 100vh;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 800px;
  margin: 0 auto; 
  padding: 2rem;
  background: var(--card-bg);
  border-radius: 12px; 
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.header { 
  display: flex; 
  align-items: center; 
  margin-bottom: 2rem; 
  gap: 15px;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

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

.logo { 
  width: 60px; 
  height: 60px; 
}

.header-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

h1 { 
  font-size: 2rem; 
  color: #1a365d; 
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

.tagline {
  color: var(--text-light);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.3;
}

.footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-text {
  flex: 1;
  min-width: 250px;
  text-align: left;
}

.footer-text p {
  margin-bottom: 0.25rem;
}

.footer-text .footer-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.footer-text .footer-subtitle {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.footer-text .small {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* Android-specific: Stack footer lines on small screens */
@media (max-width: 480px) {
  .footer-text .footer-title,
  .footer-text .footer-subtitle {
    display: block;
    width: 100%;
  }
}

.footer-turnstile {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
  
  .footer-text {
    text-align: center;
    min-width: 100%;
  }
  
  .footer-turnstile {
    justify-content: center;
    width: 100%;
  }
}

.hidden { display: none !important; }

@media (prefers-color-scheme: dark) {
  body { background: var(--dark-bg); color: var(--dark-text); }
  .container { background: var(--dark-card); }
  h1 { color: #bee3f8; }
}

/* ===== FEEDBACK ===== */
.copy-feedback {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  color: white;
  font-weight: 600;
  z-index: 1000;
  transform: translateX(120%);
  transition: transform 0.3s ease;
}

.copy-feedback.show {
  transform: translateX(0);
}

.copy-feedback.success { background: var(--success); }
.copy-feedback.error { background: var(--error); }