:root {
  --primary: #D76A3B;
  --primary-dark: #B2572E;
  --secondary: #F4A261;
  --background: #FFF3E6;
  --card: #FFE8D6;
  --text: #3C2F2F;
  --text-light: #5E4F4F;
  --white: #FFFFFF;
  --danger: #E63946;
  --success: #2A9D8F;
  --warning: #E9C46A;
  --border: #E0C9B4;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

.header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  padding: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  text-align: center;
  margin-bottom: 0.5rem;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.nav-link.active {
  background-color: rgba(255, 255, 255, 0.25);
}

.main {
  flex: 1;
  padding: 2rem 0;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.card {
  background-color: var(--card);
  border-radius: 10px;
  padding: 1.75rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--secondary);
  color: var(--white);
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  gap: 0.5rem;
}

.btn:hover {
  background-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

.input {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  transition: border 0.3s ease, box-shadow 0.3s ease;
  margin-bottom: 1rem;
  background-color: var(--white);
}

.input:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(244, 162, 97, 0.2);
}

.file-input {
  width: 100%;
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-1 {
  grid-template-columns: 1fr;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.result-box {
  margin-top: 2rem;
}

.result-status {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.result-safe {
  color: var(--success);
}

.result-danger {
  color: var(--danger);
}

.result-warning {
  color: var(--warning);
}

.details-summary {
  cursor: pointer;
  color: var(--secondary);
  font-weight: 500;
  margin: 1rem 0;
  display: inline-block;
}

.details-content {
  background-color: var(--white);
  border-radius: 6px;
  padding: 1rem;
  margin-top: 0.5rem;
  overflow-x: auto;
  max-height: 300px;
}

.alert {
  padding: 1rem;
  border-radius: 6px;
  margin-bottom: 1.5rem;
  border-left: 4px solid transparent;
}

.alert-error {
  background-color: rgba(230, 57, 70, 0.1);
  border-left-color: var(--danger);
  color: var(--danger);
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--white);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.footer {
  background-color: var(--primary);
  color: var(--white);
  padding: 1.5rem 0;
  text-align: center;
  margin-top: 2rem;
}

.footer-text {
  font-size: 0.875rem;
}

/* Адаптивность */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .header-title {
    font-size: 1.75rem;
  }
  
  .nav {
    gap: 0.75rem;
  }
  
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
}

/* Дополнительные утилиты */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.text-center { text-align: center; }