.keywords-body {
    margin: 0;
    font-family: var(--sans);
    background: var(--bg);
    color: var(--ink);
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
}

.keywords-main {
    position: fixed;
    inset: 0;
    background: var(--bg);
}

.keyword-pack-svg {
    display: block;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.keywords-float-ui {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    pointer-events: none;
}

.keywords-float-ui.hidden {
    display: none;
}

.keywords-float-back {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 2px;
    background: rgba(240, 244, 248, 0.92);
    backdrop-filter: blur(12px);
    color: var(--ink);
    font-size: 18px;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(28, 45, 74, 0.12);
    transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
}

.keywords-float-back:hover {
    background: var(--surface);
    color: var(--accent);
    transform: translateY(-1px);
    border-bottom: 1px solid var(--line);
}

.keywords-legend {
    pointer-events: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    max-width: min(320px, calc(100vw - 32px));
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 2px;
    background: rgba(240, 244, 248, 0.88);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 12px rgba(28, 45, 74, 0.1);
}

.legend-chip {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 2px;
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: 1px solid transparent;
}

.legend-tfidf {
    background: #fff3cd;
    color: #7a5d00;
    border-color: #f0c84b;
}

.legend-llm {
    background: #d7ecff;
    color: #0b4f8a;
    border-color: #6eb5ff;
}

.legend-both {
    background: #d9f5e5;
    color: #1f6b42;
    border-color: #6bcf8f;
}

.legend-group {
    background: var(--bg2);
    color: var(--accent);
    border-color: var(--line);
}

.keywords-empty {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
    color: var(--ink3);
    font-weight: 300;
    background: var(--bg);
    z-index: 1;
}

.keywords-empty.hidden {
    display: none;
}

.keywords-empty .keywords-float-back {
    position: absolute;
    top: 16px;
    left: 16px;
}

.keywords-empty code {
    background: var(--surface);
    border: 1px solid var(--line);
    padding: 2px 6px;
    border-radius: 2px;
    font-size: 13px;
    color: var(--accent2);
}

.keyword-pack-svg .pack-label {
    font-family: var(--sans);
    font-weight: 400;
    pointer-events: none;
    text-anchor: middle;
}

.keywords-hover-info {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    z-index: 25;
    max-width: min(90vw, 560px);
    padding: 10px 16px;
    border: 1px solid var(--line);
    border-radius: 2px;
    background: rgba(240, 244, 248, 0.94);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(28, 45, 74, 0.14);
    font-size: 15px;
    font-weight: 400;
    color: var(--ink);
    text-align: center;
    line-height: 1.4;
    pointer-events: none;
}

.keywords-hover-info.hidden {
    display: none;
}

.keywords-hover-info .hover-kind {
    display: block;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink3);
    margin-bottom: 4px;
}

.keywords-hover-info .hover-name {
    font-family: var(--serif);
    font-size: 18px;
    color: var(--ink);
}

.keywords-hover-info .hover-name em {
    font-style: italic;
    color: var(--accent);
}

.keywords-hover-info .hover-detail {
    display: block;
    margin-top: 4px;
    font-size: 13px;
    font-weight: 300;
    color: var(--ink2);
}

@media (max-width: 640px) {
    .keywords-float-ui {
        top: 12px;
        left: 12px;
        right: 72px;
    }

    .keywords-legend {
        gap: 4px;
        padding: 6px 8px;
    }

    .legend-chip {
        font-size: 9px;
        padding: 3px 8px;
    }
}