:root {
  --accent: #ff7a18;
  --accent-2: #1e90ff;
  --danger: #ff5c5c;
  --font: "Vazirmatn", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, "Vazirmatn", monospace;
}
:root, :root[data-theme="dark"] {
  --bg: #0f1115; --panel: #161922; --panel-2: #1d2230; --border: #2a3040;
  --fg: #e6e9ef; --muted: #8a93a6;
  --editor-bg: #1e1e1e; --editor-fg: #d4d4d4;
  --t-comment: #6a9955; --t-keyword: #569cd6; --t-type: #4ec9b0;
  --t-string: #ce9178; --t-number: #b5cea8; --t-op: #c586c0;
  --shadow: rgba(0,0,0,.35);
}
:root[data-theme="light"] {
  --bg: #f4f6fa; --panel: #ffffff; --panel-2: #eef1f6; --border: #d8dde7;
  --fg: #1b2030; --muted: #6b7280;
  --editor-bg: #ffffff; --editor-fg: #1b2030;
  --t-comment: #008000; --t-keyword: #0000ff; --t-type: #267f99;
  --t-string: #a31515; --t-number: #098658; --t-op: #af00db;
  --shadow: rgba(20,30,60,.18);
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--fg); font-family: var(--font); display: flex; flex-direction: column; }
.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; padding: 10px 16px; background: var(--panel);
  border-bottom: 1px solid var(--border); flex: 0 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 30px; height: 30px; display: inline-block; flex: 0 0 auto; background: var(--accent);
  -webkit-mask: url(logo.svg) center / contain no-repeat; mask: url(logo.svg) center / contain no-repeat;
}
.brand-name { font-weight: 600; color: var(--fg); }
.controls { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.menu-toggle {
  display: none; flex-direction: column; align-items: center; justify-content: center;
  width: 42px; height: 42px; padding: 0; gap: 0; position: relative; z-index: 90;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 9px; cursor: pointer;
}
.menu-toggle:hover { border-color: var(--accent); }
.menu-toggle .bar { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--fg);
  transition: transform .3s cubic-bezier(.4,0,.2,1), opacity .2s ease; }
.menu-toggle .bar + .bar { margin-top: 5px; }
body.menu-open .menu-toggle .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .menu-toggle .bar:nth-child(2) { opacity: 0; }
body.menu-open .menu-toggle .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.scrim {
  position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 70;
  opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease;
}
body.menu-open .scrim { opacity: 1; visibility: visible; }
.seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg-btn { background: transparent; color: var(--muted); border: 0; cursor: pointer; padding: 7px 14px; font-family: inherit; font-size: 14px; transition: .15s; }
.seg-btn:hover { color: var(--fg); }
.seg-btn.active { background: var(--accent); color: #2a1402; font-weight: 600; }
.toggle { display: inline-flex; align-items: center; gap: 7px; background: var(--panel-2); color: var(--muted); border: 1px solid var(--border); border-radius: 8px; padding: 7px 12px; font-family: inherit; font-size: 13px; cursor: pointer; transition: .15s; }
.toggle:hover { color: var(--fg); }
.toggle .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); transition: .15s; }
.toggle.on { color: var(--fg); border-color: var(--accent); }
.toggle.on .dot { background: var(--accent); box-shadow: 0 0 7px var(--accent); }
.theme-ico { font-size: 15px; line-height: 1; }
.dropdown { position: relative; }
.dd-button { display: inline-flex; align-items: center; gap: 6px; background: var(--panel-2); color: var(--fg); border: 1px solid var(--border); border-radius: 8px; padding: 7px 12px; font-family: inherit; font-size: 14px; cursor: pointer; }
.dd-button:hover { border-color: var(--accent); }
.dd-caret { color: var(--muted); font-size: 11px; transition: transform .15s; }
.dropdown.open .dd-caret { transform: rotate(180deg); }
.dd-list { position: absolute; top: calc(100% + 5px); inset-inline-start: 0; margin: 0; padding: 5px; list-style: none; min-width: 210px; max-height: 340px; overflow: auto; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 10px 30px var(--shadow); z-index: 60; }
.dd-item { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 7px; cursor: pointer; font-size: 14px; color: var(--fg); white-space: nowrap; }
.dd-item:hover { background: var(--accent); color: #2a1402; }
.dd-item.sel { color: var(--accent); font-weight: 600; }
.dd-item.sel:hover { color: #2a1402; }
.dd-item.custom { font-style: italic; }
.dd-text { flex: 1 1 auto; }
.ic { flex: 0 0 auto; vertical-align: middle; opacity: .85; }
.ic.web { color: var(--accent); opacity: 1; }
.dd-item:hover .ic { color: #2a1402; opacity: 1; }
#dd-label { display: inline-flex; align-items: center; gap: 7px; }
#dd-label .ic.web { color: var(--accent); }
.dd-head { padding: 9px 12px 4px; font-size: 11px; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--muted); cursor: default; pointer-events: none; }
.dd-head:not(:first-child) { margin-top: 5px; border-top: 1px solid var(--border); padding-top: 9px; }
.dd-head.web { color: var(--accent); }
.dd-item.is-web { background: color-mix(in srgb, var(--accent) 9%, transparent); }
.dd-item.is-web:hover { background: var(--accent); }
.dd-badge { margin-inline-start: auto; font-size: 10px; font-weight: 700; letter-spacing: .04em;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 5px; padding: 1px 6px; }
.dd-item.is-web:hover .dd-badge { color: #2a1402; border-color: #2a1402; }
.run-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #2a1402; border: 0; border-radius: 8px; padding: 8px 18px; font-family: inherit; font-size: 15px; font-weight: 700; cursor: pointer; transition: .15s; }
.run-btn:hover:not(:disabled) { filter: brightness(1.08); }
.run-btn:disabled { opacity: .5; cursor: progress; }
.run-icon { font-size: 12px; }
.split { flex: 1 1 auto; display: grid; grid-template-columns: var(--col-a, 1fr) 6px 1fr; min-height: 0; }
.pane { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.gutter {
  position: relative; z-index: 5; background: var(--border);
  cursor: col-resize; touch-action: none; user-select: none;
  transition: background .15s;
}
.gutter::before { content: ""; position: absolute; }
.gutter:hover, .gutter.dragging { background: var(--accent); }
.pane-head { flex: 0 0 auto; padding: 8px 14px; font-size: 13px; color: var(--muted); background: var(--panel); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.head-end { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 6px; flex: 0 0 auto;
  background: var(--panel-2); color: var(--muted); border: 1px solid var(--border);
  border-radius: 7px; padding: 4px 9px; font-family: inherit; font-size: 12px;
  line-height: 1; cursor: pointer; transition: .15s;
}
.icon-btn:hover { color: var(--fg); border-color: var(--accent); }
.icon-btn:active { transform: translateY(1px); }
.icon-btn svg { width: 14px; height: 14px; flex: 0 0 auto; }
.icon-btn .ic-check { display: none; }
.icon-btn.copied { color: var(--accent); border-color: var(--accent); }
.icon-btn.copied .ic-copy { display: none; }
.icon-btn.copied .ic-check { display: inline; }
@media (max-width: 560px) { .icon-btn-lbl { display: none; } }
.editor-wrap { position: relative; flex: 1 1 auto; min-height: 0; overflow: hidden; background: var(--editor-bg); }
.hl, .code {
  position: absolute; inset: 0; margin: 0; padding: 14px 16px;
  font-family: var(--mono); font-size: 14px; line-height: 1.6;
  tab-size: 4; -moz-tab-size: 4; white-space: pre; word-wrap: normal; border: 0;
}
.hl { z-index: 1; pointer-events: none; overflow: hidden; color: var(--editor-fg); }
.code { z-index: 2; background: transparent; color: transparent; caret-color: var(--editor-fg); resize: none; outline: none; overflow: auto; }
.code::selection { background: rgba(255,122,24,.30); }
.code[dir="rtl"], .hl[dir="rtl"] { text-align: right; }
.hl .c { color: var(--t-comment); font-style: italic; }
.hl .k { color: var(--t-keyword); }
.hl .t { color: var(--t-type); }
.hl .s { color: var(--t-string); }
.hl .n { color: var(--t-number); }
.hl .o { color: var(--t-op); }
.output { flex: 1 1 auto; margin: 0; padding: 14px 16px; overflow: auto; font-family: var(--mono); font-size: 14px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; color: var(--fg); background: var(--editor-bg); }
.output.error { color: var(--danger); }
.output.codeview { direction: ltr; text-align: left; white-space: pre; }
.output.xml .xb { color: var(--t-op); }
.output.xml .xt { color: var(--t-keyword); }
.output.xml .xa { color: var(--t-type); }
.output.xml .xv { color: var(--t-string); }
.output.xml .xc { color: var(--t-comment); font-style: italic; }
.output.xml .xp { color: var(--t-comment); }
.output.ir .ik { color: var(--t-keyword); }
.output.ir .it { color: var(--t-type); }
.output.ir .is { color: var(--t-string); }
.output.ir .in { color: var(--t-number); }
.output.ir .ic { color: var(--t-comment); font-style: italic; }
.output.ir .ig { color: var(--accent); }
.output.ir .il { color: var(--accent-2); }
.output.ir .im { color: var(--muted); }
.output.ir .ilbl { color: var(--accent-2); font-weight: 600; }
.output.ir .io { color: var(--t-op); }
.output.clang .cm { color: var(--t-comment); font-style: italic; }
.output.clang .cpp { color: var(--accent); }
.output.clang .cs { color: var(--t-string); }
.output.clang .cl { color: var(--t-string); }
.output.clang .cn { color: var(--t-number); }
.output.clang .ck { color: var(--t-keyword); }
.output.clang .ct { color: var(--t-type); }
.output.clang .co { color: var(--t-op); }
.output.clang .cf { color: #dcdcaa; }
:root[data-theme="light"] .output.clang .cf { color: #795e26; }
.seg.views { overflow-x: auto; max-width: 100%; }
.seg.views .seg-btn { padding: 5px 10px; font-size: 12.5px; white-space: nowrap; }
.preview { flex: 1 1 auto; border: 0; width: 100%; background: #fff; }
.status { font-size: 12px; color: var(--muted); }
.status.busy { color: var(--accent-2); }
.status.ok { color: var(--accent); }
.status.err { color: var(--danger); }
:root[dir="rtl"] body { direction: rtl; }
.banner { background: #3a2a00; color: #ffd479; border-bottom: 1px solid #5a4300; padding: 8px 16px; font-size: 13px; text-align: center; }
.banner code { background: rgba(255,255,255,.08); padding: 1px 6px; border-radius: 4px; }
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; grid-template-rows: var(--row-a, 1fr) 6px 1fr; }
  .gutter { cursor: row-resize; }
}
@media (max-width: 1024px) {
  .menu-toggle { display: inline-flex; }
  .toolbar { padding: 10px 14px; }
  .controls {
    position: fixed; inset-block: 0; inset-inline-end: 0; z-index: 80;
    width: min(330px, 86vw); margin: 0;
    flex-direction: column; align-items: stretch; flex-wrap: nowrap; gap: 14px;
    padding: 78px 18px calc(24px + env(safe-area-inset-bottom));
    background: var(--panel); border-inline-start: 1px solid var(--border);
    box-shadow: -14px 0 44px var(--shadow); overflow-y: auto;
    transform: translateX(110%);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
  }
  :root[dir="rtl"] .controls {
    border-inline-start: 0; border-inline-end: 1px solid var(--border);
    box-shadow: 14px 0 44px var(--shadow); transform: translateX(-110%);
  }
  body.menu-open .controls,
  :root[dir="rtl"] body.menu-open .controls { transform: translateX(0); }
  body.menu-open { overflow: hidden; }
  .controls .seg { display: flex; width: 100%; }
  .controls .seg-btn { flex: 1 1 0; justify-content: center; padding: 11px 12px; font-size: 15px; }
  .controls .dropdown { position: relative; width: 100%; }
  .controls .dd-button,
  .controls .toggle,
  .controls .run-btn { width: 100%; justify-content: center; padding: 12px 14px; font-size: 15px; }
  .controls .dd-list {
    position: static; min-width: 0; max-height: 42vh; margin-top: 8px;
    box-shadow: none; inset: auto;
  }
}
@media (min-width: 1025px) {
  .menu-toggle, .scrim { display: none; }
}