:root {
    --bg: #fbfbf9;
    --panel: #f2f2ee;
    --panel2: #e8e8e2;
    --border: #d6d6cf;
    --fg: #22252a;
    --dim: #7a7f88;
    --addr: #8a8f99;
    --bytes: #a3a7ae;
    --mn: #1f5fae;
    --num: #a3570c;
    --sym: #7038b8;
    --lbl: #8a5a00;
    --str: #2f7d32;
    --note: #3d7a3d;
    --dir: #6b7280;
    --ucm: #b34700;
    --cur: #dce8f8;
    --sel: #ebf1fa;
    --accent: #2563c9;
    --accent-fg: #fff;
    --warn: #b45309;
    --m-code: #3b82f6;
    --m-data: #c9ccd2;
    --m-udata: #e0a030;
    --m-text: #3fa45b;
    --m-ptr: #9b6bd6;
    --m-gap: #fbfbf9;
    --m-reloc: #0f9d8f;
    --lh: 18px;
    --mono: ui-monospace, "JetBrains Mono", "Cascadia Mono", Consolas, "DejaVu Sans Mono", monospace;
    --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #111317;
        --panel: #181b21;
        --panel2: #20242c;
        --border: #2b3039;
        --fg: #d8dbe0;
        --dim: #7b8290;
        --addr: #6f7a8c;
        --bytes: #525b6a;
        --mn: #79bbff;
        --num: #f2b56b;
        --sym: #c8a6ff;
        --lbl: #ffd479;
        --str: #94dc94;
        --note: #85b884;
        --dir: #8d95a3;
        --ucm: #ffb86b;
        --cur: #233452;
        --sel: #1b2638;
        --accent: #3b82f6;
        --m-data: #3a404b;
        --m-gap: #111317;
        color-scheme: dark;
    }
}

:root[data-theme="dark"] {
    --bg: #111317; --panel: #181b21; --panel2: #20242c; --border: #2b3039; --fg: #d8dbe0;
    --dim: #7b8290; --addr: #6f7a8c; --bytes: #525b6a; --mn: #79bbff; --num: #f2b56b;
    --sym: #c8a6ff; --lbl: #ffd479; --str: #94dc94; --note: #85b884; --dir: #8d95a3;
    --ucm: #ffb86b; --cur: #233452; --sel: #1b2638; --accent: #3b82f6; --m-data: #3a404b;
    --m-gap: #111317;
    color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 13px/1.4 var(--sans);
    display: grid;
    grid-template-rows: auto 1fr auto;
    overflow: hidden;
}
[hidden] { display: none !important; }

button, select, input, textarea {
    font: inherit;
    color: inherit;
}
button {
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 3px 9px;
    cursor: pointer;
    white-space: nowrap;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
button.small { padding: 0 6px; font-size: 12px; }
input[type=text], input[type=search], input[type=number], select, textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 6px;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: -1px; }
kbd {
    font: 11px var(--mono);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    border-radius: 3px;
    padding: 0 4px;
    background: var(--panel2);
}
.mono { font-family: var(--mono); }
.dim { color: var(--dim); }

/* toolbar */
.toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}
.toolbar .group { display: flex; gap: 4px; }
.brand { font: 700 16px var(--mono); letter-spacing: .5px; color: var(--accent); margin-right: 4px; }
.spacer { flex: 1; }
.file-info { color: var(--dim); font-family: var(--mono); font-size: 12px; max-width: 40ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

main {
    display: grid;
    grid-template-columns: 1fr minmax(300px, 380px);
    min-height: 0;
}
.center {
    position: relative;
    display: grid;
    grid-template-rows: auto 1fr;
    min-width: 0;
    min-height: 0;
}

/* memory map */
#map {
    width: 100%;
    height: 26px;
    display: block;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    background: var(--m-gap);
}

/* listing */
/* The listing doesn't scroll vertically by itself: #vbar, an empty element
   showing only a scrollbar, drives it (and the wheel), so the rows and their
   position always change together. */
#listwrap {
    display: flex;
    min-height: 0;
    min-width: 0;
}
#listing {
    position: relative;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    overflow-anchor: none;      /* rows are replaced while scrolling: don't let the browser shift them */
    user-select: none;          /* selection is by line (Ctrl+C copies it as assembly) */
    font: 13px var(--mono);
    outline: none;
    min-height: 0;
}
#spacer { width: 1px; }
#vbar { flex: none; width: 14px; overflow-x: hidden; overflow-y: scroll; }
#vbar-spacer { width: 1px; }
#rows { position: absolute; left: 0; top: 0; min-width: 100%; }
.row {
    height: var(--lh);
    line-height: var(--lh);
    white-space: pre;
    display: flex;
    padding-right: 12px;
    cursor: default;
}
.row > span { flex: none; overflow: hidden; }
.row .ad { width: 11ch; color: var(--addr); padding-left: 1ch; }
.row .ad .sg { color: var(--bytes); }
.row .by { width: 10ch; color: var(--bytes); }
.row .src { width: var(--srcw, 40ch); text-overflow: ellipsis; }
.row.k-label .src, .row.k-equ .src, .row.k-mid .src, .row.k-note .src, .row.k-seg .src, .row.k-dir .src { width: auto; min-width: var(--srcw, 40ch); padding-right: 2ch; }
.row .cm { flex: 1 1 auto; color: var(--dim); text-overflow: ellipsis; }
.row .cm .u { color: var(--ucm); }
.row .cm .xl { cursor: pointer; }
.row .cm .xl:hover { color: var(--sym); text-decoration: underline; }
.row.sel { background: var(--sel); }
.row.cur { background: var(--cur); }
#listing:focus .row.cur { box-shadow: inset 2px 0 var(--accent); }
.row.flash { animation: flash 1s ease-out; }
@keyframes flash { from { background: var(--m-udata); } }

.t-mn { color: var(--mn); }
.t-ill { color: var(--warn); text-decoration: underline dotted; }
.t-num { color: var(--num); }
.t-sym { color: var(--sym); cursor: pointer; }
.t-sym:hover, .t-lbl:hover { text-decoration: underline; }
.t-lbl { color: var(--lbl); font-weight: 600; cursor: pointer; }
.t-str { color: var(--str); }
.t-dir { color: var(--dir); }
.t-note { color: var(--note); font-style: italic; }
.t-op { color: var(--sym); font-style: italic; }
.row [data-a] { cursor: pointer; }
.row [data-a]:hover { text-decoration: underline dotted; }
.row .bsel { outline: 1px solid var(--accent); outline-offset: -1px; border-radius: 2px; background: var(--sel); }
.k-seg { border-top: 1px solid var(--border); }
.k-seg .t-note { color: var(--dim); font-style: normal; }

.empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    background: var(--bg);
}
.empty .drop {
    max-width: 560px;
    text-align: center;
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 28px 32px;
}
.empty h1 { font: 700 34px var(--mono); color: var(--accent); margin: 0 0 4px; }
.empty .hint { color: var(--dim); font-size: 12px; }
body.dragging .empty .drop, body.dragging #listwrap { outline: 3px dashed var(--accent); outline-offset: -6px; }

/* side panel */
.side {
    border-left: 1px solid var(--border);
    background: var(--panel);
    display: grid;
    grid-template-rows: auto 1fr;
    min-height: 0;
    min-width: 0;
}
.tabs { display: flex; border-bottom: 1px solid var(--border); overflow-x: auto; }
.tabs button {
    border: 0;
    border-radius: 0;
    background: transparent;
    padding: 7px 10px;
    border-bottom: 2px solid transparent;
    color: var(--dim);
}
.tabs button.on { color: var(--fg); border-bottom-color: var(--accent); }
.badge { background: var(--warn); color: #fff; border-radius: 8px; padding: 0 5px; font-size: 11px; }
.badge.suggest { background: var(--m-reloc); margin-left: 3px; }
.panel { overflow: auto; padding: 10px 12px; min-height: 0; }
.panel h3 { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--dim); margin: 14px 0 6px; }
.panel h3:first-child { margin-top: 0; }
.panel input[type=text], .panel input[type=search], .panel textarea { width: 100%; }
.panel textarea { font-family: var(--mono); resize: vertical; min-height: 3.2em; }
#tab-labels, #tab-directives, #tab-problems { display: flex; flex-direction: column; gap: 6px; }
#tab-labels[hidden], #tab-directives[hidden], #tab-problems[hidden] { display: none; }
.list { font-size: 12px; }
.list .item {
    display: flex;
    gap: 8px;
    padding: 2px 4px;
    border-radius: 3px;
    cursor: pointer;
    align-items: baseline;
}
.list .item:hover { background: var(--panel2); }
.list .item .nm { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--mono); }
.list .item .ad { font-family: var(--mono); color: var(--addr); }
.list .item .kd { font-size: 10px; color: var(--dim); width: 4em; text-align: right; }
.list .item .x { color: var(--dim); border: 0; background: none; padding: 0 4px; }
.list .item .x:hover { color: var(--warn); }
.list .item .dir-edit { flex: 1; min-width: 0; font: 12px var(--mono); padding: 1px 4px; }
.tag { font: 10px var(--sans); border-radius: 8px; padding: 0 6px; white-space: nowrap; align-self: center; cursor: help; }
.tag-none { background: var(--m-udata); color: #222; }
.tag-name, .tag-format { background: var(--panel2); color: var(--dim); border: 1px solid var(--border); }
#tab-directives > label { font-size: 12px; display: flex; gap: 6px; align-items: center; }
.list .more { color: var(--dim); padding: 4px; }
.label-kinds { display: flex; gap: 10px; font-size: 12px; color: var(--dim); }
.problem { padding: 4px 6px; border-left: 3px solid var(--warn); margin-bottom: 4px; background: var(--bg); font-size: 12px; }
.problem.link { cursor: pointer; }
.problem.suggest { border-left-color: var(--m-reloc); }
.problem .dismiss { float: right; margin: -2px -4px 0 6px; color: var(--dim); background: none; border: 0; padding: 0 4px; }
.problem .dismiss:hover { color: var(--warn); }
.seg-table tr.reloc td { color: var(--m-reloc); }
.problem.link:hover { background: var(--panel2); border-left-color: var(--accent); }

/* inspector */
.ins-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; }
.ins-head .big { font: 600 18px var(--mono); }
.pill { font-size: 11px; border-radius: 9px; padding: 0 7px; background: var(--panel2); color: var(--dim); }
.pill.code { background: var(--m-code); color: #fff; }
.pill.data { background: var(--m-data); color: var(--fg); }
.pill.udata { background: var(--m-udata); color: #222; }
.pill.text { background: var(--m-text); color: #fff; }
.pill.ptr { background: var(--m-ptr); color: #fff; }
.field { margin: 6px 0; }
.field label { display: block; font-size: 11px; color: var(--dim); margin-bottom: 2px; }
.field .row2 { display: flex; gap: 4px; }
.actions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin: 8px 0; }
.actions button { font-size: 12px; padding: 3px 4px; }
.actions kbd { font-size: 10px; margin-left: 3px; }
.xref { font: 12px var(--mono); }
.xref a { color: var(--sym); cursor: pointer; text-decoration: none; margin-right: 8px; display: inline-block; }
.xref a:hover { text-decoration: underline; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; font-size: 12px; }
.kv > :nth-child(odd) { color: var(--dim); }
.opts label { display: flex; gap: 6px; align-items: center; margin: 3px 0; }
.opts .num { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin: 4px 0; }
.opts .num input, .opts .num select { width: 9em; }
.seg-table { width: 100%; border-collapse: collapse; font: 12px var(--mono); }
.seg-table td, .seg-table th { padding: 1px 4px; text-align: left; }
.seg-table th { color: var(--dim); font-weight: normal; }
.seg-table tr.click:hover { background: var(--panel2); cursor: pointer; }

/* status */
.status {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 3px 10px;
    border-top: 1px solid var(--border);
    background: var(--panel);
    font-size: 12px;
    color: var(--dim);
    white-space: nowrap;
    overflow: hidden;
}
#status-pos { font-family: var(--mono); color: var(--fg); }
#status-msg { flex: 1; overflow: hidden; text-overflow: ellipsis; }
#status-msg.err { color: var(--warn); }
.status .keys kbd { font-size: 10px; }

/* context menu, tooltip, dialog */
.ctx {
    position: fixed;
    z-index: 20;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 6px 24px rgba(0,0,0,.25);
    padding: 4px;
    min-width: 220px;
    font-size: 13px;
}
.ctx .mi { display: flex; justify-content: space-between; gap: 20px; padding: 4px 10px; border-radius: 4px; cursor: pointer; }
.ctx .mi:hover { background: var(--accent); color: var(--accent-fg); }
.ctx .mi kbd { background: transparent; color: inherit; }
.ctx .sep { height: 1px; background: var(--border); margin: 4px 0; }
.ctx .hd { font-size: 11px; color: var(--dim); padding: 2px 10px; font-family: var(--mono); }
.tip {
    position: fixed;
    z-index: 30;
    pointer-events: none;
    background: var(--panel2);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    font: 12px var(--mono);
}
dialog {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel);
    color: var(--fg);
    padding: 16px 18px;
    min-width: 360px;
    max-width: min(640px, 92vw);
    box-shadow: 0 10px 40px rgba(0,0,0,.35);
}
dialog::backdrop { background: rgba(0,0,0,.35); }
dialog h2 { margin: 0 0 10px; font-size: 15px; }
dialog .dlg-buttons { display: flex; justify-content: flex-end; gap: 6px; margin-top: 14px; }
dialog input[type=text], dialog select, dialog textarea { width: 100%; }
dialog .field label { font-size: 12px; }
dialog pre.mono { max-height: 40vh; overflow: auto; }
dialog .help-grid { display: grid; grid-template-columns: auto 1fr; gap: 3px 14px; font-size: 13px; }
dialog .help-grid > :nth-child(odd) { text-align: right; white-space: nowrap; }

@media (max-width: 800px) {
    main { grid-template-columns: 1fr; grid-template-rows: 1fr 40%; }
    .side { border-left: 0; border-top: 1px solid var(--border); }
    .status .keys { display: none; }
    .row .by { display: none; }
}

/* find bar */
.findbar {
    position: absolute;
    top: 32px;
    right: 22px;
    z-index: 5;
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 5px 6px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0,0,0,.25);
}
.findbar input { width: 22ch; font-family: var(--mono); }
.findbar input.nomatch { outline: 2px solid var(--warn); }
.findbar button { padding: 1px 7px; }
.findbar .toggle.on { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
#find-count { min-width: 7ch; text-align: center; font-size: 12px; }
.row.hit { background: color-mix(in srgb, var(--m-udata) 22%, transparent); }
.row.hit.cur { background: color-mix(in srgb, var(--m-udata) 45%, var(--cur)); }

/* symbol set viewer */
.viewsym { margin-left: auto; font-size: 11px; padding: 0 6px; }
.symview-bar { display: flex; gap: 10px; align-items: center; }
.symview-bar input[type=search] { flex: 1; }
.symview { max-height: 60vh; overflow: auto; border: 1px solid var(--border); border-radius: 4px; }
.symview table { font-size: 12px; }
.symview td { padding: 2px 6px; vertical-align: top; }
.symview tr.hd td { color: var(--dim); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; padding-top: 8px; }
.symview tr.used td:first-child { color: var(--sym); }
dialog:has(.symview) { width: min(860px, 94vw); max-width: 94vw; }
.symview tr.off td:not(:first-child) { opacity: .45; text-decoration: line-through; }
.symview td.cbcell { width: 2.2em; cursor: pointer; text-align: center; }
.symview td.cbcell:hover { background: var(--panel2); }
.symview .symname { cursor: pointer; color: var(--sym); }
.symview .symname:hover { text-decoration: underline; }
.symview-bar .spacer { flex: 1; }
.symview-bar { margin-bottom: 4px; }

/* a bigger clear (x) button in search boxes */
input[type=search]::-webkit-search-cancel-button {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    margin: -3px -4px -3px 4px;
    padding: 3px;
    cursor: pointer;
    background-color: var(--dim);
    border-radius: 3px;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 3.5l9 9m0-9l-9 9' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center / 12px no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 3.5l9 9m0-9l-9 9' stroke='black' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center / 12px no-repeat;
}
input[type=search]::-webkit-search-cancel-button:hover { background-color: var(--fg); }
#find-close { min-width: 28px; min-height: 24px; font-size: 15px; }
.tip.bytetip { white-space: pre; line-height: 1.45; padding: 4px 8px; }