body {
    background-color: #F8F8F8;
    font-family: 'Inter', 'Segoe UI', -apple-system, sans-serif;
    min-height: 95vh;
    padding: 2rem;
    margin: 0;
}
.container {
    max-width: 900px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
}
.logo {
    width: 16rem;
    height: 5.5rem;
    background-image: url("../img/logo.png");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    margin: 0 auto 1.5rem;
}
h1 {
    color: #555555;
    font-size: 2.8rem;
    font-weight: 400;
    margin: 0 0 0.5rem;
}
.subtitle {
    color: #999999;
    font-size: 1.1rem;
    font-weight: 300;
    margin: 0;
}
.upload-box {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.file-group {
    margin-bottom: 1.5rem;
}
.file-group label {
    display: block;
    color: #666666;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}
.file-input {
    width: 100%;
    padding: 0.9rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #fafafa;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
}
.file-input:hover {
    border-color: #999999;
    background: white;
}
.settings {
    margin-bottom: 1.5rem;
}
.settings-label {
    display: block;
    color: #666666;
    font-size: 0.95rem;
    margin-bottom: 0.7rem;
}
.radio-group {
    display: flex;
    gap: 2rem;
}
.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: #666666;
}
.radio-option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #888888;
}
.check-btn {
    width: 100%;
    background: #666666;
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    margin-top: 1rem;
    transition: background 0.2s;
}
.check-btn:hover {
    background: #555555;
}
.result-box {
    background: white;
    border-radius: 12px;
    padding: 2.5rem;
    margin-top: 2rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}
.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #f0f0f0;
}
.result-header h2 {
    color: #666666;
    font-size: 1.6rem;
    font-weight: 500;
    margin: 0;
}
.badge {
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
}
.files-text {
    text-align: center;
    color: #888888;
    font-size: 1.1rem;
    font-style: italic;
}
.gauge-container {
    position: relative;
    width: 300px;
    margin: 0 auto 2.5rem;
}
.gauge {
    width: 100%;
    height: auto;
}

.gauge-bg {
    fill: none;
    stroke: #e8e8e8;
    stroke-width: 18;
    stroke-linecap: round;
}
.gauge-fill {
    fill: none;
    stroke-width: 18;
    stroke-linecap: round;
    stroke-dasharray: 345.4;
    transition: stroke-dashoffset 1.5s ease-out;
}
.gauge-value {
    position: absolute;
    top: 85px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3.5rem;
    font-weight: 600;
    line-height: 1;
}
.gauge-label {
    text-align: center;
    color: #999999;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}
.result-details {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 6rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #fafafa;
    border-radius: 8px;
}
.detail-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    text-align: center;
    min-width: 150px;
}
.detail-label {
    color: #999999;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.detail-value {
    color: #666666;
    font-size: 1.1rem;
    font-weight: 500;
}
.interpretation-box {
    padding: 1.5rem;
    background: #fafafa;
    border-radius: 8px;
    border-left: 4px solid;
}
.interpretation-text {
    color: #666666;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}