/* Opcode atlas: 256-byte stack_items_read map */

.opcode-atlas {
    margin: 1.25rem 0 1.75rem;
    padding: 1rem 1rem 1.15rem;
    background: var(--light-gray);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow-x: hidden;
}

.oa-lede,
.oa-named-lede,
.oa-inspect-rule,
.oa-inspect-note,
.oa-inspect-byte {
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin: 0 0 0.75rem;
    line-height: 1.45;
}

.oa-lede strong {
    color: var(--secondary);
}

.oa-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem 1rem;
}

.oa-lede {
    flex: 1 1 18rem;
    margin-bottom: 0.35rem;
}

.oa-search-wrap {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-left: auto;
    width: min(100%, 16rem);
}

.oa-kind {
    display: flex;
    gap: 0.35rem;
    margin: 0.65rem 0 0.15rem;
}

.oa-kind-btn {
    flex: 1 1 0;
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    min-height: 2.75rem;
    padding: 0.45rem 0.65rem;
    font-family: 'Courier New', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.oa-kind-btn.is-on {
    color: var(--primary);
    border-color: var(--primary);
}

.oa-search-label {
    font-family: 'Courier New', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.oa-search {
    width: 100%;
    min-width: 0;
    padding: 0.45rem 0.55rem;
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    color: var(--secondary);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.oa-search:focus {
    outline: none;
    border-color: var(--primary);
}

.oa-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin: 0.75rem 0 1rem;
}

.oa-key {
    display: inline-flex;
    align-items: center;
    padding: 0.12rem 0.45rem;
    font-family: 'Courier New', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--secondary);
}

.oa-maps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.oa-map-scroll {
    overflow-x: auto;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x;
    margin: 0 -0.25rem;
    padding: 0.15rem 0.25rem 0.35rem;
    scrollbar-width: thin;
}

@media (max-width: 819px) {
    .oa-maps::before {
        content: "Swipe the map sideways, then tap a cell.";
        display: block;
        font-family: 'Courier New', monospace;
        font-size: 0.72rem;
        color: var(--text-muted);
        margin: 0 0 0.45rem;
    }

    .oa-map-wrap {
        display: none;
    }

    .opcode-atlas[data-kind="v0"] .oa-map-wrap[data-kind="v0"],
    .opcode-atlas[data-kind="tap"] .oa-map-wrap[data-kind="tap"] {
        display: block;
    }
}

@media (min-width: 820px) {
    .oa-maps {
        grid-template-columns: 1fr 1fr;
    }

    .oa-kind {
        max-width: 22rem;
    }
}

.oa-map-title,
.oa-named-title,
.oa-traces-title,
.oa-family-label,
.oa-inspect-name {
    font-family: 'Courier New', monospace;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin: 0 0 0.45rem;
}

.oa-map {
    display: grid;
    grid-template-columns: 1.5rem repeat(16, minmax(1.65rem, 1fr));
    gap: 3px;
    min-width: 29rem;
    font-family: 'Courier New', monospace;
}

.oa-corner,
.oa-colhead,
.oa-rowhead {
    font-size: 0.62rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.4rem;
}

.oa-rowhead {
    text-align: right;
    padding-right: 0.15rem;
}

.oa-cell {
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    margin: 0;
    padding: 0;
    width: 100%;
    aspect-ratio: 1;
    min-height: 1.65rem;
    border: 1px solid #1a1a1a;
    border-radius: 2px;
    font-family: 'Courier New', monospace;
    font-size: 0.62rem;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    color: #f5f5f5;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.oa-cell:focus {
    outline: none;
}

.oa-cell:focus-visible,
.oa-cell.is-active {
    box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--primary);
    z-index: 2;
}

.oa-cell.is-peer {
    box-shadow: 0 0 0 2px #3a5a6a;
    z-index: 1;
}

.oa-chip.is-active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary);
}

@media (hover: hover) and (pointer: fine) {
    .oa-cell:hover {
        box-shadow: 0 0 0 2px #3a5a6a;
        z-index: 1;
    }

    .oa-cell.is-active:hover {
        box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--primary);
    }
}

.oa-cell.is-dim {
    opacity: 0.22;
}

.oa-n0 {
    background: #161616;
    color: #5a5a5a;
}

.oa-push {
    background: #1c2430;
    color: #6a7a8a;
}

.oa-dead {
    background: #1a1212;
    color: #8a5555;
    box-shadow: inset 0 0 0 1px #3a2020;
}

.oa-n1 { background: #0a3d66; color: #d6ecff; }
.oa-n2 { background: #0b6cb3; color: #061018; }
.oa-n3 { background: #b8860b; color: #121212; }
.oa-n4 { background: #c45c1a; color: #121212; }
.oa-n5 { background: #c4452a; color: #121212; }
.oa-n6 { background: #ff6b6b; color: #121212; }

.oa-success {
    box-shadow: inset 0 0 0 1px #a33b3b;
}

.oa-diff {
    box-shadow: inset 0 0 0 2px #ff6b6b;
}

.oa-key.oa-success {
    background: #161616;
    color: #ff8a8a;
    box-shadow: inset 0 0 0 1px #a33b3b;
}

.oa-key.oa-diff {
    background: #0a3d66;
    color: #d6ecff;
    box-shadow: inset 0 0 0 2px #ff6b6b;
}

.oa-inspect {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 0.55rem 1rem;
    margin: 0.85rem 0 1rem;
    padding: 0.7rem 0.8rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 6px;
    position: sticky;
    top: 0.5rem;
    z-index: 3;
}

.oa-inspect-rule,
.oa-inspect-note {
    grid-column: 1 / -1;
}

.oa-inspect-name {
    color: var(--primary);
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    margin-bottom: 0.2rem;
}

.oa-inspect-byte {
    margin-bottom: 0.45rem;
}

.oa-inspect-note {
    color: var(--secondary);
}

.oa-stack {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    min-width: 4.5rem;
}

.oa-slot {
    height: 0.7rem;
    border: 1px solid var(--border);
    border-radius: 2px;
    background: #161616;
}

.oa-slot.is-on {
    background: var(--primary);
    border-color: var(--primary);
}

.oa-stack-label {
    font-family: 'Courier New', monospace;
    font-size: 0.62rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.2rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.oa-traces {
    margin: 1.15rem 0 0;
    break-inside: avoid;
    page-break-inside: avoid;
}

.oa-trace {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem 0.4rem;
    margin: 0 0 0.45rem;
    font-family: 'Courier New', monospace;
    font-size: 0.72rem;
}

.oa-trace-label {
    color: var(--text-muted);
    min-width: min(100%, 11.5rem);
    flex: 1 1 100%;
    letter-spacing: 0.02em;
}

@media (min-width: 640px) {
    .oa-trace-label {
        flex: 0 0 11.5rem;
    }
}

.oa-tok {
    display: inline-flex;
    align-items: baseline;
    gap: 0.25rem;
    padding: 0.18rem 0.4rem;
    border-radius: 3px;
    border: 1px solid var(--border);
}

.oa-tok small {
    color: var(--text-muted);
    font-size: 0.62rem;
}

.oa-tok-push {
    background: #1c2430;
    color: #9ab;
}

.oa-tok-read {
    background: #0b6cb3;
    color: #061018;
    border-color: #0b6cb3;
}

.oa-tok-dead {
    background: #1a1212;
    color: #ff8a8a;
    border-color: #5a3030;
}

.oa-trace-why {
    color: var(--text-muted);
}

.oa-named {
    margin: 1.15rem 0 0;
    padding-top: 0.85rem;
    border-top: 1px solid var(--border);
}

.oa-family {
    margin: 0 0 0.7rem;
}

.oa-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.oa-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    min-height: 2.1rem;
    padding: 0.28rem 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.72rem;
    color: var(--secondary);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

@media (hover: hover) and (pointer: fine) {
    .oa-chip:hover {
        border-color: var(--primary);
    }
}

.oa-chip-count {
    display: inline-flex;
    min-width: 1.1rem;
    justify-content: center;
    padding: 0.05rem 0.28rem;
    border-radius: 3px;
    background: #0b6cb3;
    color: #061018;
    font-weight: 700;
    font-size: 0.68rem;
}

.oa-chip-zero .oa-chip-count {
    background: #3a2020;
    color: #ff8a8a;
}

.oa-chip-diff {
    border-color: #ff6b6b;
}

.oa-chip.is-hidden {
    display: none;
}

.opcode-normative-tables {
    margin: 1rem 0 1.5rem;
    padding: 0.65rem 0.85rem;
    background: var(--light-gray);
    border: 1px solid var(--border);
    border-radius: 6px;
}

.opcode-normative-tables > summary {
    font-family: 'Courier New', monospace;
    font-size: 0.82rem;
    color: var(--primary);
    cursor: pointer;
}

.opcode-normative-tables > summary:hover {
    color: #33adff;
}

@media (max-width: 600px) {
    .opcode-atlas {
        padding: 0.75rem 0.7rem 1rem;
        margin-left: -0.15rem;
        margin-right: -0.15rem;
    }

    .oa-toolbar {
        flex-direction: column;
    }

    .oa-search-wrap {
        width: 100%;
        margin-left: 0;
    }

    .oa-search {
        font-size: 1rem;
    }

    .oa-lede {
        font-size: 0.72rem;
    }

    .oa-slot {
        height: 0.55rem;
    }

    .oa-inspect-name {
        font-size: 0.82rem;
    }
}

@media print {
    .oa-search-wrap,
    .oa-kind,
    .oa-maps::before {
        display: none;
    }

    .oa-inspect {
        position: static;
    }

    .oa-map-wrap {
        display: block !important;
    }

    .oa-map {
        min-width: 0;
        grid-template-columns: 1.1rem repeat(16, minmax(0, 1fr));
        gap: 2px;
    }

    .oa-cell,
    .oa-chip {
        cursor: default;
    }

    .opcode-atlas {
        break-inside: auto;
    }

    .oa-maps {
        grid-template-columns: 1fr 1fr;
        break-inside: avoid;
    }
}