/* --- Albero di sviluppo (static/js/unlock-tree.js) --------------------------
   Il tipo di voce si riconosce da icona e bordo sinistro, lo stato da bordo e
   riga di stato: verde sviluppato, oro disponibile ora, tratteggiato bloccato. */
.unlock-tree {
    --tree-room: #c2a46d;
    --tree-technology: #86aed0;
    --tree-henchman: #d9879a;
    --tree-canvas-height: min(70vh, 46rem);
}

.unlock-tree .is-room { --kind-color: var(--tree-room); }
.unlock-tree .is-technology { --kind-color: var(--tree-technology); }
.unlock-tree .is-henchman { --kind-color: var(--tree-henchman); }

.unlock-tree-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2) var(--space-4);
    margin-bottom: var(--space-3);
}

.unlock-tree-search {
    flex: 1 1 14rem;
    width: auto;
    max-width: 22rem;
}

.unlock-tree-legend {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
    padding: 0;
    margin: 0 0 var(--space-3);
    font-size: .8rem;
    color: var(--text-soft);
}

.unlock-tree-legend li {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}

.unlock-tree-swatch {
    width: 1.35rem;
    height: 1.35rem;
    border-radius: .4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    color: var(--kind-color);
    border: 1px solid var(--kind-color);
    background: var(--surface-sunken);
}

.unlock-tree-state {
    width: 1.5rem;
    height: .95rem;
    border-radius: .3rem;
    border: 2px solid var(--border-soft);
    background: var(--surface-sunken);
}

.unlock-tree-state.is-unlocked {
    border-color: var(--color-success);
    background: rgba(95, 191, 159, .18);
}

.unlock-tree-state.is-available {
    border-color: var(--color-warning);
    box-shadow: 0 0 .5rem rgba(230, 184, 114, .45);
}

.unlock-tree-state.is-locked {
    border-style: dashed;
    border-color: rgba(230, 223, 210, .35);
}

/* minmax(0, ...): senza, la colonna si allargherebbe quanto il grafo. */
.unlock-tree-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
}

@media (min-width: 1200px) {
    .unlock-tree-layout {
        grid-template-columns: minmax(0, 1fr) 19rem;
    }
}

.unlock-tree-viewport {
    position: relative;
    overflow: auto;
    height: var(--tree-canvas-height);
    min-height: 20rem;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    background:
        radial-gradient(circle at 50% 0%, rgba(194, 164, 109, .08), transparent 45%),
        var(--surface-sunken);
    cursor: grab;
    overscroll-behavior: contain;
}

.unlock-tree-viewport:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.unlock-tree-viewport.is-panning {
    cursor: grabbing;
    user-select: none;
}

.unlock-tree-canvas {
    position: relative;
    margin: 0 auto;
    overflow: hidden;
}

.unlock-tree-stage {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
}

.unlock-tree-edges {
    position: absolute;
    top: 0;
    left: 0;
    overflow: visible;
    pointer-events: none;
}

.unlock-tree-edge {
    fill: none;
    stroke-width: 1.6;
    transition: opacity .15s ease, stroke .15s ease;
}

.unlock-tree-edge.is-satisfied { stroke: rgba(95, 191, 159, .5); }
.unlock-tree-edge.is-missing { stroke: rgba(230, 223, 210, .28); stroke-dasharray: 5 4; }
.unlock-tree-edge.is-path { stroke-width: 2.6; }
.unlock-tree-edge.is-path.is-satisfied { stroke: var(--color-success); }
.unlock-tree-edge.is-path.is-missing { stroke: var(--color-warning); }
.unlock-tree-edge.is-dimmed { opacity: .1; }

.unlock-tree-arrow.is-satisfied path { fill: rgba(95, 191, 159, .75); }
.unlock-tree-arrow.is-missing path { fill: rgba(230, 223, 210, .45); }
.unlock-tree-arrow.is-path-satisfied path { fill: var(--color-success); }
.unlock-tree-arrow.is-path-missing path { fill: var(--color-warning); }

.unlock-tree-edge-label {
    position: absolute;
    transform: translate(-50%, -50%);
    padding: .05rem .45rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-soft);
    background: #111318;
    color: var(--text-soft);
    font-size: .7rem;
    font-weight: 700;
    white-space: nowrap;
    pointer-events: none;
    transition: opacity .15s ease;
}

.unlock-tree-edge-label.is-satisfied { color: var(--color-success); }
.unlock-tree-edge-label.is-path { border-color: var(--border-strong); color: var(--aged-gold-bright); }
.unlock-tree-edge-label.is-dimmed { opacity: .12; }

.unlock-tree-node {
    position: absolute;
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .55rem .4rem .45rem;
    border: 1px solid rgba(230, 223, 210, .18);
    border-left: 4px solid var(--kind-color);
    border-radius: .75rem;
    background: linear-gradient(160deg, rgba(32, 35, 43, .98), rgba(14, 15, 19, .98));
    color: var(--text-body);
    box-shadow: var(--shadow-sm);
    text-align: left;
    font: inherit;
    cursor: pointer;
    transition: opacity .15s ease, box-shadow .15s ease, border-color .15s ease, transform .15s ease;
}

.unlock-tree-node:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.unlock-tree-node:focus-visible {
    outline: 2px solid var(--aged-gold-bright);
    outline-offset: 2px;
}

.unlock-tree-node-icon {
    flex: none;
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, .06);
    color: var(--kind-color);
    font-size: .95rem;
}

.unlock-tree-node-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: .15rem;
}

.unlock-tree-node-name {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-strong);
    font-size: .78rem;
    font-weight: 600;
    line-height: 1.2;
}

.unlock-tree-node-status {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    color: var(--text-muted);
    font-size: .68rem;
}

.unlock-tree-node.is-unlocked .unlock-tree-node-status { color: var(--color-success); }

.unlock-tree-node.is-available {
    border-color: rgba(230, 184, 114, .75);
    border-left-color: var(--kind-color);
    box-shadow: 0 0 0 1px rgba(230, 184, 114, .2), 0 0 .9rem rgba(230, 184, 114, .22);
}

.unlock-tree-node.is-available .unlock-tree-node-status { color: var(--color-warning); }

.unlock-tree-node.is-locked {
    border-style: dashed;
    border-left-style: solid;
    background: rgba(14, 15, 19, .96);
}

.unlock-tree-node.is-locked .unlock-tree-node-name { color: var(--text-soft); }
.unlock-tree-node.is-locked .unlock-tree-node-icon { opacity: .6; }

.unlock-tree-node.is-ancestor { border-color: var(--border-strong); }

.unlock-tree-node.is-selected {
    border-color: var(--aged-gold-bright);
    border-left-color: var(--kind-color);
    box-shadow: 0 0 0 2px var(--aged-gold), 0 0 1.2rem rgba(194, 164, 109, .45);
}

.unlock-tree-node.is-dimmed { opacity: .25; }

.unlock-tree-node.is-flashing {
    animation: unlockTreeFlash 1.2s ease;
}

@keyframes unlockTreeFlash {
    30% {
        box-shadow: 0 0 0 4px var(--aged-gold-bright), 0 0 1.6rem rgba(245, 233, 208, .6);
    }
}

.unlock-tree-details {
    max-height: var(--tree-canvas-height);
    overflow-y: auto;
    padding: var(--space-3);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
    font-size: .85rem;
}

.unlock-tree-details-head {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.unlock-tree-details-title {
    margin: 0;
    color: var(--text-strong);
    font-size: 1rem;
}

.unlock-tree-details-status {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    color: var(--text-muted);
    font-size: .78rem;
}

.unlock-tree-details-status.is-unlocked { color: var(--color-success); }
.unlock-tree-details-status.is-available { color: var(--color-warning); }

.unlock-tree-goto {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    width: 100%;
    margin-top: var(--space-3);
}

.unlock-tree-details-summary {
    margin: var(--space-3) 0 0;
    color: var(--color-success);
}

.unlock-tree-details-note {
    margin: 0;
    color: var(--text-muted);
}

.unlock-tree-details-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-2);
    margin: var(--space-4) 0 var(--space-2);
    color: var(--text-muted);
    font-size: .72rem;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.unlock-tree-details-count {
    flex: none;
    letter-spacing: 0;
    text-transform: none;
    white-space: nowrap;
}

.unlock-tree-progress {
    height: 4px;
    margin-bottom: var(--space-2);
    border-radius: 2px;
    background: rgba(230, 223, 210, .12);
    overflow: hidden;
}

.unlock-tree-progress span {
    display: block;
    height: 100%;
    background: var(--color-success);
}

.unlock-tree-steps {
    list-style: none;
    display: grid;
    gap: .3rem;
    padding: 0;
    margin: 0;
}

.unlock-tree-step {
    width: 100%;
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem .5rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, .03);
    color: var(--text-body);
    text-align: left;
    font: inherit;
}

.unlock-tree-step:hover,
.unlock-tree-step:focus-visible {
    border-color: var(--border-soft);
    background: rgba(194, 164, 109, .08);
    outline: none;
}

.unlock-tree-step > .bi:first-child { color: var(--kind-color); }

.unlock-tree-step-name {
    flex: 1;
    min-width: 0;
}

.unlock-tree-step-level {
    color: var(--text-soft);
    font-size: .78rem;
    font-variant-numeric: tabular-nums;
}

.unlock-tree-step.is-todo .unlock-tree-step-level,
.unlock-tree-step.is-todo .unlock-tree-step-check { color: var(--color-warning); }
.unlock-tree-step.is-next { border-color: rgba(230, 184, 114, .45); }

.unlock-tree-step-now {
    flex: none;
    padding: 0 .4rem;
    border-radius: var(--radius-pill);
    background: rgba(230, 184, 114, .16);
    color: var(--color-warning);
    font-size: .68rem;
    font-weight: 700;
}

.unlock-tree-step.is-done { opacity: .65; }
.unlock-tree-step.is-done .unlock-tree-step-check { color: var(--color-success); }

.unlock-tree-error {
    margin: 0;
    padding: var(--space-4);
    color: var(--color-danger);
}

@media (max-width: 767px) {
    .unlock-tree {
        --tree-canvas-height: 60vh;
    }
}

@media (prefers-reduced-motion: reduce) {
    .unlock-tree-node,
    .unlock-tree-edge,
    .unlock-tree-edge-label {
        transition: none;
    }

    .unlock-tree-node.is-flashing,
    .game-card.component-flash {
        animation: none;
    }
}