body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 0; padding: 0; color: #333; }
header { background: #2c3e50; color: #fff; padding: 1rem 0; position: sticky; top: 0; }
nav { display: flex; justify-content: space-around; align-items: center; }
nav ul { list-style: none; display: flex; gap: 20px; }
nav a { color: #fff; text-decoration: none; font-weight: bold; }

section { padding: 50px 10%; border-bottom: 1px solid #eee; }
h2 { color: #2c3e50; border-left: 5px solid #d35400; padding-left: 10px; }

.tech-grid { display: flex; gap: 20px; margin-top: 20px; }
.tech-item { flex: 1; padding: 20px; background: #f4f4f4; border-radius: 8px; text-align: center; }

table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { border: 1px solid #ddd; padding: 12px; text-align: center; }
th { background-color: #f2f2f2; }

.login-body { display: flex; justify-content: center; align-items: center; height: 100vh; background: #ecf0f1; }
.login-container { background: white; padding: 40px; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); width: 300px; text-align: center; }
.login-container input { width: 100%; padding: 10px; margin: 10px 0; border: 1px solid #ddd; box-sizing: border-box; }
.login-container button { width: 100%; padding: 10px; background: #2c3e50; color: white; border: none; cursor: pointer; }
.back-btn { margin-top: 10px; background: #95a5a6 !important; }