:root {
  --primary-color: #0ea5e9;
  --primary-hover: #0284c7;
  --primary-light: #e0f2fe;
  --success-color: #10b981;
  --success-light: #d1fae5;
  --error-color: #ef4444;
  --error-light: #fee2e2;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --bg-primary: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #c6cacc;
  min-height: 100vh;
  padding: 24px;
  line-height: 1.6;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 40px;
  animation: fadeInDown 0.6s ease-out;
}

.header h1 {
  color: #333;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header .subtitle {
  color: #333;
  font-size: 1.125rem;
  font-weight: 400;
}

.search-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
}

.input-group {
  margin-bottom: 24px;
}

.input-group label {
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--bg-primary);
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
  background: white;
}

.btn-primary {
  width: 100%;
  padding: 14px 24px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.loader {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

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

.error-message {
  background: var(--error-light);
  color: var(--error-color);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: shake 0.5s ease-out;
  border: 1px solid var(--error-color);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-10px); }
  75% { transform: translateX(10px); }
}

.result-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.6s ease-out;
}

.success-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--success-light);
  color: var(--success-color);
  border-radius: 8px;
  margin-bottom: 32px;
  font-weight: 600;
  border: 1px solid var(--success-color);
}

.certificate-info {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 2px solid var(--border-color);
}

.certificate-info h3 {
  color: var(--text-primary);
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.info-item {
  background: var(--bg-primary);
  padding: 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.info-label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  display: block;
  color: var(--text-primary);
  font-size: 1.125rem;
  font-weight: 600;
}

.info-value.status {
  color: var(--success-color);
}

.companies-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.company-card {
  background: var(--bg-primary);
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.company-card h4 {
  color: var(--primary-color);
  font-size: 1.25rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-light);
}

.company-details p {
  margin-bottom: 12px;
  color: var(--text-primary);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.company-details strong {
  color: var(--text-secondary);
  font-weight: 600;
  display: inline-block;
  min-width: 100px;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  body {
    padding: 16px;
  }

  .header h1 {
    font-size: 2rem;
  }

  .header .subtitle {
    font-size: 1rem;
  }

  .search-card,
  .result-card {
    padding: 24px;
  }

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

  .companies-section {
    grid-template-columns: 1fr;
  }

  .company-details strong {
    min-width: auto;
  }
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 1.75rem;
  }

  .search-card,
  .result-card {
    padding: 20px;
  }

  .certificate-info h3 {
    font-size: 1.25rem;
  }
}
.header {
    text-align: center;
    margin-bottom: 30px;
}

.logo-certilap {
    max-width: 220px;
    width: 100%;
    height: auto;
    margin: 0 auto 15px auto;
    display: block;
}
.back-button-wrapper {
    margin-top: 15px;
    text-align: center;
}

.btn-secondary {
    background-color: #f1f5f9;
    color: #1f2937;
    border: 1px solid #cbd5e1;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background-color: #e5e7eb;
    border-color: #94a3b8;
}