.main-container {
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    overflow: hidden;
}

.header {
    background: #18223d;
    color: white;
    padding: 40px 20px;
    text-align: center;
    position: relative;
}

.calculator-icon {
    width: 60px;
    height: 60px;
    background: #8bc34a;
    border-radius: 12px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
}

.header h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    font-weight: 600;
    color:#fff;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
    line-height: 1.6;
}

.main-content {
    display: grid;
    background: #f8f9fa;
}

.input-section {
    padding: 40px;
    background: white;
}

.results-section {
    padding: 40px;
    background: #f8f9fa;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 30px;
}

.section-icon {
    width: 24px;
    height: 24px;
    background: #8bc34a;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.95rem;
}

.currency-input {
    position: relative;
}

.currency-symbol {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    background: #8bc34a;
    padding: 8px 12px;
    border-radius: 6px;
    font-weight: bold;
    z-index: 2;
}

.form-input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 1rem;
    background: white;
    color:#333;
    transition: all 0.3s ease;
}

.currency-input .form-input {
    padding-left: 70px;
}

.form-input:focus {
    color: #111;
    outline: none;
    border-color: #8bc34a;
    box-shadow: 0 0 0 3px rgba(139, 195, 74, 0.1);
}

.form-select {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-select:focus {
    outline: none;
    border-color: #8bc34a;
    box-shadow: 0 0 0 3px rgba(139, 195, 74, 0.1);
}

.range-info {
    font-size: 0.85rem;
    color: #666;
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.calculate-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #8bc34a 0%, #7cb342 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(139, 195, 74, 0.3);
}

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

.result-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    border-left: 5px solid #8bc34a;
    transition: all 0.3s ease;
}

.result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.result-label {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.result-percentage {
    font-size: 2.2rem;
    font-weight: bold;
    color: #8bc34a;
}

.result-description {
    font-size: 0.85rem;
    color: #666;
}

.cost-breakdown {
    background: #18223d;
    border-radius: 12px;
    padding: 25px;
    margin-top: 20px;
}

.breakdown-title {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: white;
}

.breakdown-item:last-child {
    border-bottom: none;
    font-weight: bold;
    font-size: 1.1rem;
    margin-top: 10px;
    padding-top: 20px;
    border-top: 2px solid #8bc34a;
}
.breakdown-item:nth-last-child(2) {
    border-bottom: none;
}

.tips-section {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 12px;
    padding: 25px;
    margin: 20px 0px;
}

.tips-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: #856404;
    margin-bottom: 15px;
}

.tips-list {
    list-style: none;
}

.tips-list li {
    margin-bottom: 8px;
    color: #856404;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.tips-list li::before {
    content: "•";
    color: #8bc34a;
    font-weight: bold;
    margin-top: 2px;
}

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

.yield-range {
    background: white;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    border: 2px solid #e1e8ed;
}

.yield-range.excellent {
    border-color: #27ae60;
    background: #d5f4e6;
}

.yield-range.good {
    border-color: #8bc34a;
    background: #f1f8e9;
}

.yield-range.average {
    border-color: #f39c12;
    background: #fef9e7;
}

.yield-range.poor {
    border-color: #e74c3c;
    background: #fdedec;
}

.yield-range h4 {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.yield-range .percentage {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.yield-range .description {
    font-size: 0.8rem;
    color: #666;
}

.info-section{
    padding: 40px;
    background-color: #fff;
}

.comparison-section {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-radius: 12px;
    padding: 25px;
}

.comparison-title {
    font-weight: 600;
    color: #1565c0;
    margin-bottom: 15px;
    text-align: center;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    text-align: center;
}

.comparison-item {
    background: white;
    padding: 15px;
    border-radius: 8px;
}

.comparison-label {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 5px;
}

.comparison-value {
    font-size: 1.1rem;
    font-weight: bold;
    color: #1565c0;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .input-section, .results-section, .info-section {
        padding: 20px;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .yield-interpretation {
        grid-template-columns: 1fr;
    }
}