:root {
    --bg: #777777;
    --panel: #ffffff;
    --panel-soft: #f8fafc;
    --text: #202124;
    --muted: #5f6368;
    --accent: #1a73e8;
    --accent-strong: #1967d2;
    --border: #dfe1e5;
    --success: #137333;
    --danger: #d93025;
    --dark-panel: #111827;
    --dark-panel-soft: #1f2937;
    --dark-border: #374151;
    --dark-text: #f9fafb;
    --dark-muted: #cbd5e1;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Google Sans", "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(180deg, #cfcfcf 0%, var(--bg) 100%);
    color: var(--text);
}

.page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

.header {
    margin-bottom: 22px;
    background: linear-gradient(160deg, #0f172a 0%, #111827 65%, #1f2937 100%);
    border-radius: 18px;
    padding: 28px 30px;
    color: var(--dark-text);
    border: 1px solid #0b1220;
    box-shadow: 0 20px 40px rgba(2, 6, 23, 0.28);
}

.header h1 {
    margin: 0;
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: 0;
}

.header p {
    margin: 12px 0 0;
    color: var(--dark-muted);
    line-height: 1.55;
    max-width: 1000px;
}

.header a {
    color: #8ab4f8;
    text-decoration: none;
}

.header a:hover {
    text-decoration: underline;
}

.layout {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 18px;
    min-height: 72vh;
}

.card {
    background: linear-gradient(180deg, #ffffff, #fbfdff);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    box-shadow: 0 8px 24px rgba(60, 64, 67, 0.12);
}

aside.card {
    background: linear-gradient(180deg, #0f172a, #111827);
    border-color: var(--dark-border);
    box-shadow: 0 18px 36px rgba(2, 6, 23, 0.32);
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

label {
    display: block;
    margin-bottom: 6px;
    color: #334155;
    font-weight: 600;
}

aside.card label {
    color: var(--dark-text);
}

.input,
textarea,
button,
input[type="range"] {
    width: 100%;
}

textarea {
    background: var(--panel-soft);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    resize: vertical;
    min-height: 88px;
    padding: 10px;
    font: inherit;
}

#terms {
    background: var(--dark-panel-soft);
    color: var(--dark-text);
    border: 1px solid var(--dark-border);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 1.15rem;
    font-weight: 600;
}

.range-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: center;
    margin-bottom: 6px;
}

.value-chip {
    background: #172033;
    border: 1px solid var(--dark-border);
    color: #8ab4f8;
    min-width: 68px;
    text-align: center;
    border-radius: 999px;
    padding: 5px 10px;
    font-weight: 700;
    font-size: 0.9rem;
}

input[type="range"] {
    accent-color: var(--accent-strong);
}

.radios {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.radio-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--dark-panel-soft);
    border: 1px solid var(--dark-border);
    border-radius: 10px;
    padding: 8px 12px;
    color: var(--dark-text);
    cursor: pointer;
}

.actions {
    display: flex;
    gap: 10px;
}

button {
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 10px 12px;
    font-weight: 700;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(180deg, #4285f4, #1a73e8);
    color: #ffffff;
}

.btn-secondary {
    background: transparent;
    color: var(--dark-text);
    border-color: var(--dark-border);
}

.status {
    margin-top: 8px;
    color: var(--dark-text);
    font-size: 1.2rem;
    font-weight: 700;
    min-height: 34px;
    display: flex;
    align-items: center;
}

.status.ok {
    color: #8ab4f8;
}

.status.error {
    color: var(--danger);
}

.results-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 12px;
}

.results-meta {
    color: var(--muted);
    font-size: 0.95rem;
}

.query-time {
    font-size: 1.5rem;
    font-weight: 800;
    color: #174ea6;
    background: #e8f0fe;
    border: 1px solid #d2e3fc;
    border-radius: 10px;
    padding: 6px 12px;
    line-height: 1.2;
}

.index-size {
    font-size: 1.5rem;
    font-weight: 800;
    color: #7c4a03;
    background: #fef7e0;
    border: 1px solid #fde293;
    border-radius: 10px;
    padding: 6px 12px;
    line-height: 1.2;
}

.metrics {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.result-area {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) minmax(320px, 1fr);
    gap: 14px;
    height: calc(72vh - 74px);
    min-height: 420px;
}

.results-list,
.detail-panel {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #ffffff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.results-scroll,
.detail-scroll {
    overflow: auto;
    padding: 8px;
    flex: 1;
}

.result-item {
    width: 100%;
    text-align: left;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 6px;
    color: inherit;
}

.result-item:hover,
.result-item.active {
    border-color: #8ab4f8;
    background: #edf4ff;
}

.result-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.result-snippet {
    color: #475569;
    font-size: 0.92rem;
    line-height: 1.35;
}

.detail-title {
    margin: 0 0 12px;
    font-size: 1.2rem;
}

.detail-body {
    color: #334155;
    line-height: 1.5;
    white-space: pre-wrap;
}

.empty {
    color: var(--muted);
    padding: 8px;
}

@media (max-width: 980px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .result-area {
        grid-template-columns: 1fr;
        height: auto;
    }

    .results-list,
    .detail-panel {
        min-height: 280px;
    }
}