:root {
    --bg: #ffffff;
    --fg: #1d1d1f;
    --muted: #6b6b70;
    --border: #d0d0d5;
    --panel: #f5f5f7;
    --hotel: #2f6f4f;
    --opera: #8a3b12;
    --opi: #1f4e8c;
    --warn-bg: #fff4d6;
    --error: #b42318;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--fg);
    background: var(--bg);
}

.level {
    padding: 12px 16px;
    border-top: 6px solid var(--border);
}

.level-hotel { border-top-color: var(--hotel); }
.level-opera { border-top-color: var(--opera); }
.level-opi { border-top-color: var(--opi); }

h1, h2, h3 {
    margin: 0 0 8px;
}

h1 { font-size: 18px; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }

.frame-info {
    font: 12px ui-monospace, Consolas, monospace;
    color: var(--muted);
    margin-bottom: 8px;
}

.frame-info.warn,
.warn-box {
    background: var(--warn-bg);
    color: var(--fg);
    padding: 4px 8px;
}

.embed {
    display: block;
    width: 100%;
    border: 2px dashed var(--border);
    background: var(--bg);
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    align-items: center;
    margin-bottom: 8px;
}

fieldset {
    border: 1px solid var(--border);
    margin: 0 0 12px;
    padding: 8px 12px;
}

label {
    display: inline-flex;
    gap: 4px;
    align-items: center;
}

input[type="text"], input[type="number"], select {
    padding: 4px 6px;
    border: 1px solid var(--border);
    font: inherit;
}

button {
    padding: 6px 12px;
    font: inherit;
    cursor: pointer;
}

.sf-field {
    height: 36px;
    border: 1px solid var(--border);
    background: #fff;
    padding: 0 6px;
}

.sf-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 8px;
    margin-bottom: 8px;
}

.sf-row > div > span {
    display: block;
    font-size: 12px;
    color: var(--muted);
}

#log {
    height: 320px;
    overflow: auto;
    background: var(--panel);
    border: 1px solid var(--border);
    font: 12px ui-monospace, Consolas, monospace;
    padding: 6px;
}

.log-line { padding: 2px 0; border-bottom: 1px solid var(--border); }
.log-line pre { margin: 2px 0 0 16px; white-space: pre-wrap; word-break: break-all; }
.log-error .log-head { color: var(--error); font-weight: 600; }
.log-src-hotel .log-head::first-letter { color: var(--hotel); }
.log-src-opera .log-head::first-letter { color: var(--opera); }
.log-src-opi .log-head::first-letter { color: var(--opi); }

.tabs button[aria-selected="true"] {
    font-weight: 600;
    border-bottom: 3px solid var(--opi);
}

.hidden { display: none !important; }

.tds-overlay {
    position: fixed;
    inset: 0;
    background: rgb(0 0 0 / 55%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.tds-overlay .tds-box {
    background: #fff;
    width: min(600px, 96vw);
    height: min(640px, 92vh);
    display: flex;
    flex-direction: column;
}

.tds-overlay .tds-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 8px;
    background: var(--opi);
    color: #fff;
    font-size: 12px;
}

.tds-overlay iframe {
    flex: 1;
    border: 0;
    width: 100%;
}

.thanks {
    border: 2px solid var(--opera);
    background: var(--panel);
    padding: 16px;
}

.note {
    color: var(--muted);
    font-size: 12px;
}

.flows li {
    margin-bottom: 12px;
}