:root {
    --panel-bg: #0d1312;
    --panel-elevated: #131d1b;
    --panel-card: #162321;
    --panel-border: rgba(164, 205, 162, 0.24);
    --panel-fg: #eef8f0;
    --panel-muted: #a7b8ab;
    --panel-accent: #89da70;
    --panel-accent-soft: #66b95a;
    --panel-danger: #f97272;
}

.home-layout {
    width: min(1380px, calc(100vw - 2rem));
    margin: 0 auto;
    /* Fills the shell's central area (.app-body); no viewport math needed. */
    height: 100%;
    padding: 1rem 0;
    display: grid;
    grid-template-rows: minmax(0, 1fr);
    gap: 1rem;
    overflow: hidden;
}

.home-panel {
    border: 1px solid var(--panel-border);
    border-radius: 1.2rem;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(16, 25, 23, 0.97) 0%, rgba(12, 18, 17, 0.96) 100%);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.35);
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(360px, 430px) 1fr;
}

.home-left {
    border-right: 1px solid var(--panel-border);
    background: linear-gradient(180deg, var(--panel-elevated) 0%, var(--panel-bg) 100%);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.home-left-header {
    padding: 1rem;
    border-bottom: 1px solid var(--panel-border);
}

.home-eyebrow {
    margin: 0 0 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--panel-muted);
    font-size: 0.72rem;
}

.home-title {
    margin: 0;
    font-size: 1.25rem;
}

.title-with-tooltip {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.info-tooltip-button {
    position: relative;
    width: 1.35rem;
    height: 1.35rem;
    border: 1px solid var(--panel-border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--panel-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: help;
}

.info-tooltip-button::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 0;
    top: calc(100% + 0.5rem);
    width: min(18rem, 70vw);
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--panel-border);
    border-radius: 0.7rem;
    background: rgba(12, 19, 17, 0.98);
    color: var(--panel-fg);
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.4;
    text-align: left;
    opacity: 0;
    transform: translateY(4px);
    pointer-events: none;
    transition: opacity 120ms ease, transform 120ms ease;
    z-index: 70;
}

.info-tooltip-button:hover::after,
.info-tooltip-button:focus-visible::after {
    opacity: 1;
    transform: translateY(0);
}

.remaining-box {
    margin-top: 0.8rem;
    background: rgba(22, 35, 33, 0.92);
    border: 1px solid var(--panel-border);
    border-radius: 0.8rem;
    padding: 0.75rem 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.remaining-label {
    color: var(--panel-muted);
    font-size: 0.88rem;
}

.remaining-value {
    font-family: "JetBrains Mono", "IBM Plex Mono", monospace;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--panel-accent);
}

.tree-wrap {
    overflow-y: auto;
    padding: 0.8rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.tree-node {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.tree-children {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin-top: 0.3rem;
}

.tree-row {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 0.7rem;
    padding: 0.45rem 0.55rem;
}

.tree-row:hover {
    border-color: rgba(137, 218, 112, 0.28);
    background: rgba(255, 255, 255, 0.04);
}

.tree-row.is-selected {
    border-color: rgba(137, 218, 112, 0.72);
    outline: 1px solid rgba(137, 218, 112, 0.58);
    background: rgba(137, 218, 112, 0.08);
}

.tree-expand {
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 999px;
    border: 1px solid var(--panel-border);
    background: transparent;
    color: var(--panel-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}

.tree-expand.expanded {
    transform: rotate(45deg);
}

.tree-spacer {
    width: 1.4rem;
    height: 1.4rem;
    flex-shrink: 0;
}

.color-dot {
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 999px;
    flex-shrink: 0;
}

.tree-name {
    flex: 1;
    min-width: 0;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-name.is-truncated {
    cursor: help;
}

.slider-shell {
    width: 128px;
    position: relative;
    flex-shrink: 0;
}

.slider-track {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 6px;
    background: #22302b;
    border-radius: 10px;
    overflow: hidden;
    pointer-events: none;
}

.slider-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--panel-accent-soft), var(--panel-accent));
    border-radius: 10px;
}

.tree-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    position: relative;
    margin: 0;
    height: 1.8rem;
    border: 0;
    outline: 0;
    box-shadow: none;
    -webkit-tap-highlight-color: transparent;
}

.tree-slider:focus {
    outline: 0;
    box-shadow: none;
}

.tree-slider::-webkit-slider-runnable-track {
    -webkit-appearance: none;
    border: 0;
    outline: 0;
    box-shadow: none;
    background: transparent;
}

.tree-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: none;
    outline: 0;
    box-shadow: none;
    background: #ecf8ec;
}

.tree-slider:not(:focus-visible)::-webkit-slider-thumb {
    box-shadow: none !important;
}

.tree-slider::-moz-range-track {
    border: 0;
    outline: 0;
    box-shadow: none;
    background: transparent;
}

.tree-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: none;
    outline: 0;
    box-shadow: none;
    background: #ecf8ec;
}

.tree-slider:not(:focus-visible)::-moz-range-thumb {
    box-shadow: none !important;
}

.tree-slider:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 0 0 2px rgba(137, 218, 112, 0.45);
}

.tree-slider:focus-visible::-moz-range-thumb {
    box-shadow: 0 0 0 2px rgba(137, 218, 112, 0.45);
}

.tree-value {
    width: 2.7rem;
    text-align: right;
    color: var(--panel-accent);
    font-weight: 700;
    font-family: "JetBrains Mono", "IBM Plex Mono", monospace;
    font-size: 0.85rem;
}

.unallocated-row {
    opacity: 0.7;
    border-style: dashed;
}

.home-left-footer {
    border-top: 1px solid var(--panel-border);
    overflow: visible;
    position: relative;
    z-index: 50;
    padding: 0.8rem;
    display: flex;
    gap: 0.55rem;
    align-items: center;
}

.footer-buttons {
    flex: 1;
    display: flex;
    gap: 0.55rem;
}

.footer-controls {
    flex-shrink: 0;
    display: flex;
    gap: 0.55rem;
}

.footer-button {
    flex: 1;
    height: 2.4rem;
    border: 1px solid var(--panel-border);
    border-radius: 0.7rem;
    background: rgba(255, 255, 255, 0.02);
    color: var(--panel-muted);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-button:hover:not(:disabled) {
    color: var(--panel-fg);
    border-color: rgba(137, 218, 112, 0.42);
}

.footer-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.icon-button {
    position: relative;
    flex-shrink: 0;
    width: 2.4rem;
    height: 2.4rem;
    min-width: 2.4rem;
    border: 1px solid var(--panel-border);
    border-radius: 0.7rem;
    background: rgba(255, 255, 255, 0.02);
    color: var(--panel-muted);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 120ms ease;
}

.icon-button:hover:not(:disabled) {
    color: var(--panel-fg);
    border-color: rgba(137, 218, 112, 0.42);
    background: rgba(137, 218, 112, 0.08);
}

.icon-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.icon-button:hover::after {
    content: attr(data-title);
    position: absolute;
    background: rgba(0, 0, 0, 0.95);
    color: #fff;
    padding: 0.4rem 0.6rem;
    border-radius: 0.4rem;
    font-size: 0.75rem;
    white-space: nowrap;
    top: -2.8rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    pointer-events: none;
    border: 1px solid rgba(137, 218, 112, 0.3);
}

.home-right {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.treemap-area {
    flex: 1;
    min-height: 0;
    padding: 0.8rem;
    position: relative;
    overflow: hidden;
    display: flex;
}

#treemapCanvas {
    display: block;
    flex: 1;
    width: 100%;
    height: 100%;
    min-height: 0;
    border-radius: 0.9rem;
    background: linear-gradient(180deg, rgba(22, 34, 30, 0.5) 0%, rgba(11, 17, 15, 0.5) 100%);
}

.treemap-tooltip {
    position: fixed;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 120ms ease, transform 120ms ease;
    background: rgba(12, 19, 17, 0.98);
    color: var(--panel-fg);
    border: 1px solid var(--panel-border);
    border-radius: 0.7rem;
    padding: 0.55rem 0.7rem;
    z-index: 50;
    font-size: 0.8rem;
}

.treemap-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.tree-name-tooltip {
    position: fixed;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 80ms ease, transform 80ms ease;
    background: rgba(12, 19, 17, 0.98);
    color: var(--panel-fg);
    border: 1px solid var(--panel-border);
    border-radius: 0.7rem;
    padding: 0.5rem 0.65rem;
    z-index: 60;
    font-size: 0.8rem;
    max-width: min(70vw, 480px);
    white-space: normal;
    word-break: break-word;
}

.tree-name-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.home-footer {
    border: 1px solid var(--panel-border);
    border-radius: 0.9rem;
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    color: var(--panel-muted);
    background: rgba(15, 22, 20, 0.75);
    font-size: 0.86rem;
}

.home-footer a {
    color: var(--panel-accent);
    text-decoration: none;
    font-weight: 700;
}

.category-empty {
    border: 1px dashed var(--panel-border);
    border-radius: 0.8rem;
    padding: 1rem;
    color: var(--panel-muted);
    background: rgba(255, 255, 255, 0.02);
}

/* Mobile-only treemap toggle + close controls; hidden on desktop/wide viewports. */
.mobile-treemap-toggle,
.mobile-treemap-close {
    display: none;
}

@media (max-width: 980px) {
    .home-panel {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .home-left {
        border-right: 0;
        border-bottom: 1px solid var(--panel-border);
        max-height: none;
    }

    .treemap-area {
        min-height: 0;
    }

    .home-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .info-tooltip-button::after {
        left: auto;
        right: 0;
    }

    /* Default mobile view: sliders visible, treemap hidden behind the toggle. */
    .mobile-treemap-toggle {
        display: block;
        margin: 0 0.8rem 0.8rem;
        height: 2.4rem;
        border: 1px solid var(--panel-border);
        border-radius: 0.7rem;
        background: rgba(137, 218, 112, 0.08);
        color: var(--panel-fg);
        font-weight: 700;
    }

    .home-right {
        display: none;
    }

    /* Treemap open: hide sliders, let the treemap fill the whole central panel. */
    .home-panel.is-treemap-open .home-left {
        display: none;
    }

    .home-panel.is-treemap-open .home-right {
        display: flex;
    }

    .home-panel.is-treemap-open .mobile-treemap-close {
        display: inline-flex;
        position: absolute;
        top: 1.1rem;
        right: 1.1rem;
        z-index: 10;
        height: 2.2rem;
        align-items: center;
        gap: 0.35rem;
        padding: 0 0.8rem;
        border: 1px solid var(--panel-border);
        border-radius: 0.7rem;
        background: rgba(12, 19, 17, 0.92);
        color: var(--panel-fg);
        font-weight: 700;
    }
}