:root {
  --primary-color: #2c3e50;
  --secondary-color: #34495e;
  --accent-color: #3498db;
  --light-gray: #f8f9fa;
  --text-color: #2c3e50;
  --border-color: #e0e0e0;
}

body {
  font-family: "Segoe UI", "Roboto", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9fafb;
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  margin: 0;
  padding: 0;
}

.navbar {
  background-color: var(--primary-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 0.8rem 0;
}

.navbar-brand {
  font-weight: 600;
  font-size: 1.4rem;
  color: white;
}

.hero-section {
  background: linear-gradient(135deg, #f9fafb 0%, #edf2f7 100%);
  padding: 5rem 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.hero-title {
  font-weight: 700;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: #5a6c7d;
  max-width: 700px;
  margin: 0 auto 3rem;
  line-height: 1.6;
}

.action-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2rem;
}

.action-btn {
  padding: 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 260px;
  height: 160px;
  text-align: center;
  border: 1px solid var(--border-color);
  background: white;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  color: var(--text-color);
}

.action-btn i {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.btn-submit {
  border-left: 4px solid #2ecc71;
}

.btn-update {
  border-left: 4px solid #f39c12;
}

.btn-status {
  border-left: 4px solid #3498db;
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  color: var(--text-color);
}

.features-section {
  padding: 5rem 0;
  background-color: white;
}

.feature-card {
  text-align: center;
  padding: 2rem;
  border-radius: 8px;
  height: 100%;
  transition: transform 0.2s ease;
  border: 1px solid var(--border-color);
  background: white;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.feature-card p {
  color: #5a6c7d;
  line-height: 1.6;
}

.footer {
  background-color: var(--primary-color);
  color: white;
  padding: 2.5rem 0;
  text-align: center;
}

.footer a {
  color: #ecf0f1;
  text-decoration: none;
}

.footer a:hover {
  color: white;
  text-decoration: underline;
}

.application-id-input {
  padding: 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  width: 100%;
  font-size: 1rem;
  margin: 1rem 0;
  transition: border-color 0.2s;
}

.application-id-input:focus {
  border-color: var(--accent-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.status-indicator {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.status-pending {
  background-color: #fff3cd;
  color: #856404;
}

.status-review {
  background-color: #cce5ff;
  color: #004085;
}

.status-interview {
  background-color: #d4edda;
  color: #155724;
}

.status-rejected {
  background-color: #f8d7da;
  color: #721c24;
}

.status-accepted {
  background-color: #d4edda;
  color: #155724;
}

@media (max-width: 768px) {
  .action-buttons {
    flex-direction: column;
    align-items: center;
  }

  .action-btn {
    width: 100%;
    max-width: 280px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-section {
    padding: 3rem 0;
  }
}

.custom-swal-popup {
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
}

.custom-swal-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.custom-swal-confirm {
  border-radius: 6px;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  background-color: var(--accent-color);
  border: none;
}

.custom-swal-confirm:hover {
  background-color: #2980b9;
}

.custom-swal-cancel {
  border-radius: 6px;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  background-color: #95a5a6;
  border: none;
}

.custom-swal-cancel:hover {
  background-color: #7f8c8d;
}