:root {
    color-scheme: light dark;
    --bg: #f5f6f8;
    --panel: #ffffff;
    --text: #1c1e21;
    --muted: #666a70;
    --border: #dcdfe3;
    --accent: #2f6fed;
    --success-bg: #e6f6ec;
    --success-text: #157347;
    --warning-bg: #fdecea;
    --warning-text: #b3261e;
    --error-bg: #fdecea;
    --error-text: #b3261e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 32px 16px 64px;
}

.page-header {
    text-align: center;
    margin-bottom: 28px;
}

.page-header h1 {
    margin: 0 0 6px;
    font-size: 26px;
}

.page-header .sub {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 600;
    margin-bottom: 16px;
}

.alert-error {
    background: var(--error-bg);
    color: var(--error-text);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.result {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.preview-row {
    display: flex;
    gap: 16px;
    margin: 16px 0;
}

.preview-row figure {
    flex: 1;
    margin: 0;
    text-align: center;
}

.preview-row img {
    width: 100%;
    max-height: 220px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.preview-row figcaption {
    margin-top: 6px;
    font-size: 12px;
    color: var(--muted);
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.result-table th,
.result-table td {
    text-align: left;
    padding: 8px 4px;
    border-bottom: 1px solid var(--border);
}

.result-table th {
    color: var(--muted);
    font-weight: 500;
    width: 40%;
}

.upload-form {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
}

.field input[type="file"] {
    padding: 8px;
    border: 1px dashed var(--border);
    border-radius: 8px;
    background: var(--bg);
    font-size: 14px;
}

.upload-form button {
    align-self: flex-start;
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}

.upload-form button:hover {
    filter: brightness(0.95);
}

@media (max-width: 480px) {
    .preview-row {
        flex-direction: column;
    }
}