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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: #f5f8ff;
    color: #333;
}

.sp {display:none;}

@media (max-width: 480px) {
    .sp {display:block;}

}

.site-header {
    background: #4a7eff;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.site-title {
    font-size: 1.4rem;
    font-weight: bold;
    margin: 0;
    text-align: center;
}

@media (max-width: 430px) {
    .site-title {
        font-size: 1rem;
    }

}


.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.back-button {
    background: none;
    border: none;
    color: #4a7eff;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    padding: 0.5rem;
}

.back-button:disabled {
    color: #ccd6e6;
    cursor: not-allowed;
}

.step-indicator {
    color: #6b7280;
    font-size: 0.9rem;
}

.title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 2rem;
    color: #1a2b4e;
    text-align: center;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 600px;
    margin: 0 auto;
}

.option-button {
    width: 100%;
    padding: 0.8rem 1.2rem;
    text-align: left;
    background: white;
    border: 1.5px solid #e1e8ff;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
    color: #1a2b4e;
}

.option-button:hover {
    background-color: #f5f8ff;
    border-color: #4a7eff;
}

.option-button.selected {
    background-color: #4a7eff;
    border-color: #4a7eff;
    color: white;
}

.next-button {
    width: 100%;
    max-width: 200px;
    padding: 0.75rem;
    background-color: #4a7eff;
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    margin: 1.5rem auto;
    font-size: 0.9rem;
    display: block;
}

.next-button:hover {
    background-color: #3d6ae8;
}

.next-button:disabled {
    background-color: #ccd6e6;
    cursor: not-allowed;
}

.input-group {
    position: relative;
    width: 200px;
    margin: 0 auto;
}

.input-field {
    width: 100%;
    padding: 0.6rem;
    border: 1.5px solid #e1e8ff;
    border-radius: 50px;
    font-size: 0.9rem;
    text-align: center;
    padding-right: 40px;
}

.input-field:focus {
    outline: none;
    border-color: #4a7eff;
}

.unit {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #1a2b4e;
    font-size: 0.9rem;
}

.total-fee {
    margin-top: 2rem;
    padding: 1rem;
    border-top: 1px solid #e1e8ff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.total-fee-label {
    font-size: 1rem;
    color: #1a2b4e;
}

.total-fee-amount {
    font-size: 1.2rem;
    font-weight: bold;
    color: #1a2b4e;
}

.odometer.odometer-auto-theme, .odometer.odometer-theme-default {
    font-size: 1.2rem;
    font-family: inherit;
    font-weight: bold;
}

.odometer.odometer-auto-theme .odometer-digit, 
.odometer.odometer-theme-default .odometer-digit {
    background-color: transparent;
}

.odometer.odometer-auto-theme .odometer-digit .odometer-digit-inner, 
.odometer.odometer-theme-default .odometer-digit .odometer-digit-inner {
    color: #1a2b4e;
}

[data-step] {
    display: none;
}

[data-step].active {
    display: block;
}

#resetButton {
    background-color: #6b7280;
    margin-top: 2rem;
}

#resetButton:hover {
    background-color: #4b5563;
}

@media screen and (max-width: 768px) {
    .container {
        margin: 1rem;
        padding: 1rem;
    }
    
    .header-content {
        padding: 0 1rem;
    }
    
    .site-title {
        font-size: 1.2rem;
    }
}