:root {
    --primary: #636E72;
    --primary-dim: rgba(99, 110, 114, 0.12);
    --secondary: #B2BEC3;
    --accent: #6C5CE7;
    --accent-dim: rgba(108, 92, 231, 0.12);
    --success: #00B894;
    --warning: #FDCB6E;
    --danger: #D63031;
    --bg: #0D1117;
    --bg-card: rgba(22, 27, 34, 0.8);
    --bg-elevated: #161B22;
    --bg-input: rgba(13, 17, 23, 0.9);
    --text: #C9D1D9;
    --text-sec: #8B949E;
    --text-muted: #484F58;
    --border: rgba(139, 148, 158, 0.08);
    --radius: 12px;
    --radius-sm: 8px;
    --font: 'Inter', -apple-system, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at 30% 10%, rgba(108, 92, 231, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.app-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.header-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 1.25rem;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: var(--radius-sm);
}

.app-title {
    font-size: 1rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), #A29BFE);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-subtitle {
    font-size: 0.625rem;
    color: var(--text-sec);
}

.header-actions {
    display: flex;
    gap: 4px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 7px 12px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 150ms ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #5A4BD6);
    color: #fff;
}

.btn-primary:hover {
    box-shadow: 0 3px 12px rgba(108, 92, 231, 0.4);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-sec);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-elevated);
    color: var(--text);
}

.btn-sm {
    padding: 4px 8px;
    font-size: 0.625rem;
}

.main-content {
    flex: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 16px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.section-title {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.section-icon {
    font-size: 0.9rem;
}

/* Query Preview */
.query-preview {
    background: rgba(108, 92, 231, 0.06);
    border: 1px solid rgba(108, 92, 231, 0.15);
    border-radius: var(--radius);
    padding: 16px;
}

.query-output {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--accent);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Panels */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}

/* Inputs */
.form-input {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.8125rem;
    outline: none;
}

.form-input:focus {
    border-color: var(--accent);
}

.form-sm {
    padding: 5px 8px;
    font-size: 0.6875rem;
}

.form-label {
    font-size: 0.625rem;
    color: var(--text-sec);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-top: 8px;
}

/* Label Filters */
.label-filters {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 8px;
}

.label-row {
    display: flex;
    gap: 6px;
    align-items: center;
}

.label-row .form-input {
    flex: 1;
}

.label-op {
    padding: 7px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 50px;
    cursor: pointer;
    text-align: center;
    outline: none;
}

.label-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.875rem;
    padding: 4px;
}

.label-remove:hover {
    color: var(--danger);
}

/* Range */
.range-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

.range-btn {
    padding: 6px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-sec);
    font-family: var(--mono);
    font-size: 0.6875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 150ms;
}

.range-btn:hover {
    color: var(--text);
    background: var(--bg-elevated);
}

.range-btn.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

/* Functions & Aggregation */
.func-grid,
.agg-grid {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.func-chip,
.agg-chip {
    padding: 5px 10px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.625rem;
    font-family: var(--mono);
    color: var(--text-sec);
    cursor: pointer;
    transition: all 150ms;
}

.func-chip:hover,
.agg-chip:hover {
    color: var(--text);
    border-color: var(--accent);
    background: var(--accent-dim);
}

.func-chip.active,
.agg-chip.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

/* Agg By */
.agg-by {
    margin-top: 10px;
}

/* Docs */
.docs-content {
    font-size: 0.75rem;
    color: var(--text-sec);
    line-height: 1.6;
}

.docs-content strong {
    color: var(--text);
}

.docs-content code {
    font-family: var(--mono);
    background: rgba(108, 92, 231, 0.08);
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 0.6875rem;
    color: var(--accent);
}

.app-footer {
    text-align: center;
    padding: 12px;
    font-size: 0.625rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .label-row {
        flex-wrap: wrap;
    }
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-thumb {
    background: rgba(139, 148, 158, 0.15);
    border-radius: 3px;
}