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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #2d4a2b 0%, #5a7a54 50%, #8b7355 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

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

header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
    padding: 20px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    color: #f5f5dc;
}

header p {
    font-size: 1.1em;
    opacity: 0.95;
    color: #e8dcc4;
}

.card {
    background: #faf8f3;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 2px solid #8b7355;
}

h2 {
    color: #3d5a3a;
    margin-bottom: 20px;
    font-size: 1.5em;
    font-weight: 700;
}

h3 {
    color: #5a4a3a;
    margin-bottom: 15px;
    margin-top: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #555;
}

input {
    padding: 12px;
    border: 2px solid #a89968;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s;
    background: #ffffff;
}

input:focus {
    outline: none;
    border-color: #5a7a54;
    background: #fffef8;
}

small {
    color: #888;
    font-size: 0.85em;
    margin-top: 5px;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, #5a7a54 0%, #3d5a3a 100%);
    color: #f5f5dc;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(61, 90, 58, 0.5);
    background: linear-gradient(135deg, #6a8a64 0%, #4d6a4a 100%);
}

.btn-primary:active {
    transform: translateY(0);
}

.results {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid #e0e0e0;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.result-item {
    padding: 15px;
    background: #f0ebe0;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    border: 1px solid #c8b896;
}

.result-item.highlight {
    background: linear-gradient(135deg, #e8dcc4 0%, #d4c5a0 100%);
    border: 2px solid #8b7355;
}

.result-item .label {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 5px;
}

.result-item .value {
    font-size: 1.3em;
    font-weight: 700;
    color: #333;
}

.recommendation {
    background: #e8f4e3;
    border-left: 4px solid #5a7a54;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.recommendation h4 {
    color: #3d5a3a;
    margin-bottom: 10px;
}

.recommendation p {
    color: #2d4a2b;
    line-height: 1.6;
}

.error {
    background: #ffecea;
    border-left: 4px solid #8b4513;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    color: #6b2f1f;
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .card {
        padding: 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}