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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 10px;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

.input-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

button {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    margin-right: 10px;
    margin-top: 10px;
}

button:hover {
    background: #5568d3;
}

.results-section, .gantt-section, .metrics-section {
    margin-top: 30px;
}

h2 {
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 3px solid #667eea;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

table th, table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

table th {
    background: #667eea;
    color: white;
}

table tr:hover {
    background: #f5f5f5;
}

.delete-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 5px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
}

.delete-btn:hover {
    background: #c0392b;
}

.gantt-bar {
    display: inline-block;
    padding: 10px;
    margin: 5px 0;
    color: white;
    font-weight: bold;
    text-align: center;
    border-radius: 5px;
}

.metric-card {
    background: #667eea;
    color: white;
    padding: 20px;
    border-radius: 10px;
    margin: 10px 0;
    text-align: center;
}

.metric-value {
    font-size: 36px;
    font-weight: bold;
    margin-top: 10px;
}