:root {
    --hb-surface-bg: rgba(18, 18, 18, 0.58);
    --hb-surface-border: rgba(255, 255, 255, 0.08);
    --hb-shadow-dark: rgba(0, 0, 0, 0.55);
    --hb-shadow-light: rgba(255, 255, 255, 0.08);
    --hb-accent-strip: linear-gradient(180deg, rgba(174,45,31,0.9), rgba(174,45,31,0.4));
}

.hb-surface {
    background: var(--hb-surface-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--hb-surface-border);
    border-radius: var(--hb-card-radius);
    box-shadow:
        inset -3px -3px 9px var(--hb-shadow-light),
        inset 6px 8px 20px var(--hb-shadow-dark),
        0 25px 55px rgba(0, 0, 0, 0.35);
    position: relative;
    color: var(--primary-text-color);
}

.hb-surface--accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: var(--hb-accent-strip);
    border-top-left-radius: var(--hb-card-radius);
    border-bottom-left-radius: var(--hb-card-radius);
}

.hb-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.hb-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.9rem;
    background: rgba(255,255,255,0.06);
    border-radius: var(--hb-card-radius);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hb-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--hb-card-radius);
    background: rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--primary-text-color);
    box-shadow:
        inset -2px -2px 6px rgba(255,255,255,0.04),
        inset 4px 6px 14px rgba(0,0,0,0.55);
}

.hb-input:focus {
    outline: none;
    border-color: rgba(174,45,31,0.7);
    box-shadow:
        inset -2px -2px 6px rgba(255,255,255,0.05),
        inset 4px 6px 16px rgba(0,0,0,0.65),
        0 0 0 1px rgba(174,45,31,0.6);
}

.hb-metric-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, rgba(255,255,255,0.1), rgba(0,0,0,0.2));
    box-shadow:
        -4px -4px 10px rgba(255,255,255,0.04),
        4px 4px 18px rgba(0,0,0,0.55);
}

.hb-panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.hb-scroll-strip {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.hb-scroll-strip::-webkit-scrollbar {
    height: 6px;
}

.hb-scroll-strip::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 3px;
}