/* مختبر الدارات — نظام التصميم */
:root {
  --bg: #e7ece9; --panel: #fafbf9; --panel-2: #f2f5f3; --panel-3: #e9eeeb;
  --ink: #15232b; --ink-2: #4e5f66; --ink-3: #7a8a90; --line: #d5ddd9; --line-2: #e4eae7;
  --primary: #0e6e55; --primary-2: #0b5a45; --primary-soft: #e1f0ea; --on-primary: #fff;
  --amber: #f2a900; --amber-2: #d99500; --amber-soft: #fff4d6;
  --danger: #c43d2f; --danger-soft: #fbe9e6; --warn: #a86b12; --warn-soft: #fdf1dc; --ok: #14804a; --ok-soft: #e2f3e9; --info: #2c6fb7; --info-soft: #e5eef8;
  --radius: 10px; --radius-s: 7px;
  --shadow-1: 0 1px 2px rgba(21, 35, 43, .06), 0 1px 1px rgba(21, 35, 43, .04);
  --shadow-2: 0 2px 6px rgba(21, 35, 43, .07), 0 10px 28px rgba(21, 35, 43, .09);
  --shadow-3: 0 18px 60px rgba(10, 25, 30, .22);
  --font: "Segoe UI", "Noto Sans Arabic", "Noto Kufi Arabic", "Geeza Pro", Tahoma, "Arial", sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "Cascadia Code", Consolas, "SF Mono", Menlo, "DejaVu Sans Mono", monospace;
  --code-bg: #fbfcfb; --code-gutter: #eef2f0;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #111719; --panel: #182023; --panel-2: #1e282b; --panel-3: #253236;
  --ink: #e6eeec; --ink-2: #a9b8b7; --ink-3: #7d8e8f; --line: #2c3a3e; --line-2: #243135;
  --primary: #2fae86; --primary-2: #27946f; --primary-soft: #183a31; --on-primary: #06140f;
  --amber-soft: #3a2f10; --danger: #ef6a5b; --danger-soft: #3b1f1c; --warn: #e0a449; --warn-soft: #362a15; --ok: #4cc585; --ok-soft: #173327; --info: #6aa7e8; --info-soft: #172a3d;
  --shadow-2: 0 2px 6px rgba(0, 0, 0, .3), 0 10px 28px rgba(0, 0, 0, .35);
  --code-bg: #141b1d; --code-gutter: #1a2326;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body { font: 14px/1.55 var(--font); color: var(--ink); background: var(--bg); overflow: hidden; -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.ltr { direction: ltr; unicode-bidi: isolate; }
kbd { font: 12px var(--mono); background: var(--panel-2); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; direction: ltr; display: inline-block; }
svg.i { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- الهيكل ---------- */
.app { display: grid; grid-template-rows: 54px minmax(0, 1fr); grid-template-columns: minmax(0, 1fr); height: 100vh; width: 100vw; overflow: hidden; }
.main { display: grid; grid-template-columns: 276px minmax(0, 1fr) 332px; min-height: 0; }
.app.no-lib .main { grid-template-columns: 0 minmax(0, 1fr) 332px; }
.app.no-insp .main { grid-template-columns: 276px minmax(0, 1fr) 0; }
.app.no-lib.no-insp .main { grid-template-columns: 0 minmax(0, 1fr) 0; }
.center { display: grid; grid-template-rows: minmax(0, 1fr) auto; min-width: 0; min-height: 0; border-inline: 1px solid var(--line); }
.panel { background: var(--panel); min-height: 0; overflow: hidden; display: flex; flex-direction: column; }

/* ---------- الشريط العلوي ---------- */
.topbar { display: flex; align-items: center; gap: 8px; padding: 0 12px; overflow: hidden; background: var(--panel); border-bottom: 1px solid var(--line); min-width: 0; }
.brand { display: flex; align-items: center; gap: 9px; padding: 4px 6px 4px 10px; border-radius: 9px; border: 0; background: none; font-weight: 700; font-size: 15px; white-space: nowrap; }
.brand:hover { background: var(--panel-2); }
.brand .mark { width: 30px; height: 30px; border-radius: 8px; background: var(--primary); display: grid; place-items: center; color: #fff; }
.brand .mark svg { width: 20px; height: 20px; stroke: #fff; }
.title-edit { flex: 0 1 190px; min-width: 70px; border: 1px solid transparent; background: none; border-radius: 7px; padding: 5px 8px; color: var(--ink-2); font-size: 14px; text-overflow: ellipsis; }
.title-edit:hover { border-color: var(--line); }
.title-edit:focus { border-color: var(--primary); background: var(--panel); color: var(--ink); outline: none; }
.save-dot { font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.save-dot.err { color: var(--danger); }
.spacer { flex: 1; }
.tb-group { display: flex; align-items: center; gap: 4px; flex: none; }
.topbar > .btn, .topbar > .ib, .topbar > .seg, .topbar > .brand { flex: none; }
.narrow-only { display: none !important; }
.sep { width: 1px; height: 26px; background: var(--line); margin: 0 4px; }

/* زر التشغيل على هيئة مخرج مزود طاقة المختبر */
.run { display: flex; align-items: center; gap: 10px; height: 38px; padding: 0 16px 0 14px; white-space: nowrap; border-radius: 10px; border: 1px solid #0a4f3e; background: linear-gradient(#138063, #0e6e55); color: #fff; font-weight: 700; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .18), 0 1px 2px rgba(0, 0, 0, .15); min-width: 136px; justify-content: center; }
.run:hover { background: linear-gradient(#168a6b, #0f7359); }
.run .led { width: 10px; height: 10px; border-radius: 50%; background: #0a3a2d; box-shadow: inset 0 1px 2px rgba(0, 0, 0, .5); }
.run.on { background: linear-gradient(#2b3438, #1d2427); border-color: #11171a; }
.run.on .led { background: var(--amber); box-shadow: 0 0 0 3px rgba(242, 169, 0, .25), 0 0 10px var(--amber); }
.run.paused .led { background: var(--amber); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: .25; } }
.clock { font: 600 13px var(--mono); color: var(--ink-2); min-width: 74px; text-align: center; direction: ltr; }
.speed { height: 32px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); padding: 0 6px; color: var(--ink-2); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 34px; padding: 0 13px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); white-space: nowrap; font-weight: 500; }
.btn:hover { background: var(--panel-2); border-color: #c5d0cb; }
.btn:disabled { opacity: .45; cursor: default; }
.btn.primary { background: var(--primary); border-color: var(--primary-2); color: var(--on-primary); font-weight: 600; }
.btn.primary:hover { background: var(--primary-2); }
.btn.amber { background: var(--amber); border-color: var(--amber-2); color: #231a00; font-weight: 600; }
.btn.danger { color: var(--danger); }
.btn.ghost { border-color: transparent; background: none; }
.btn.ghost:hover { background: var(--panel-2); }
.btn.sm { height: 28px; padding: 0 9px; font-size: 13px; border-radius: 7px; }
.btn.lg { height: 44px; padding: 0 20px; font-size: 15px; border-radius: 10px; }
.ib { width: 34px; height: 34px; display: inline-grid; place-items: center; border: 1px solid transparent; background: none; border-radius: 8px; color: var(--ink-2); }
.ib:hover { background: var(--panel-2); color: var(--ink); }
.ib:disabled { opacity: .35; cursor: default; background: none; }
.ib.on { background: var(--primary-soft); color: var(--primary); }
.ib.sm { width: 28px; height: 28px; }
.seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--line); border-radius: 9px; padding: 2px; gap: 2px; }
.seg button { border: 0; background: none; height: 28px; padding: 0 10px; border-radius: 7px; color: var(--ink-2); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.seg button.on { background: var(--panel); color: var(--ink); box-shadow: var(--shadow-1); font-weight: 600; }
.badge { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px; padding: 0 6px; border-radius: 10px; font-size: 12px; font-weight: 700; background: var(--panel-3); color: var(--ink-2); }
.badge.danger { background: var(--danger); color: #fff; }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }

/* ---------- القوائم المنسدلة ---------- */
.menu { position: fixed; z-index: 60; min-width: 230px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow-2); padding: 6px; }
.menu button { display: flex; align-items: center; gap: 10px; width: 100%; border: 0; background: none; padding: 8px 10px; border-radius: 7px; text-align: start; }
.menu button:hover, .menu button:focus-visible { background: var(--panel-2); outline: none; }
.menu button .k { margin-inline-start: auto; color: var(--ink-3); font: 12px var(--mono); direction: ltr; }
.menu hr { border: 0; border-top: 1px solid var(--line-2); margin: 5px 4px; }
.menu .mh { font-size: 12px; color: var(--ink-3); padding: 6px 10px 2px; }

/* ---------- المكتبة ---------- */
.lib-head { padding: 12px 12px 8px; border-bottom: 1px solid var(--line-2); }
.lib-head h2, .insp-head h2 { font-size: 15px; margin: 0 0 8px; }
.search { position: relative; }
.search input { width: 100%; height: 36px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel-2); padding: 0 34px 0 10px; }
.search input:focus { background: var(--panel); border-color: var(--primary); outline: none; }
.search svg { position: absolute; top: 9px; right: 10px; color: var(--ink-3); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.chip { height: 26px; padding: 0 10px; border-radius: 13px; border: 1px solid var(--line); background: var(--panel); font-size: 12.5px; color: var(--ink-2); white-space: nowrap; }
.chip.on { background: var(--ink); border-color: var(--ink); color: var(--panel); }
.lib-body { overflow: auto; padding: 4px 10px 16px; flex: 1; scrollbar-width: thin; }
.lib-sec { margin-top: 10px; }
.lib-sec > h3 { font-size: 12.5px; color: var(--ink-3); font-weight: 600; margin: 6px 4px 6px; display: flex; justify-content: space-between; }
.lib-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.part { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 6px 7px; border: 1px solid var(--line-2); border-radius: 10px; background: var(--panel); text-align: center; min-width: 0; user-select: none; }
.part:hover { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.part:active { transform: translateY(1px); }
.part .th { width: 64px; height: 52px; display: grid; place-items: center; }
.part .th img { max-width: 64px; max-height: 52px; }
.part .th .ph { width: 34px; height: 34px; border-radius: 8px; background: var(--panel-3); }
.part b { font-size: 12.5px; font-weight: 600; line-height: 1.35; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.part small { font-size: 11px; color: var(--ink-3); direction: ltr; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.lib-empty { color: var(--ink-3); text-align: center; padding: 30px 10px; }
.lib-foot { border-top: 1px solid var(--line-2); padding: 8px 12px; font-size: 12px; color: var(--ink-3); }

/* ---------- المسرح ---------- */
.stage { position: relative; overflow: hidden; background: var(--bg); touch-action: none; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.stage canvas.overlay { pointer-events: none; }
.stage.cur-grab { cursor: grab; } .stage.cur-grabbing { cursor: grabbing; } .stage.cur-pin { cursor: crosshair; } .stage.cur-hand { cursor: pointer; } .stage.cur-move { cursor: move; }
.stage.has-coach .headline { left: auto; right: 12px; transform: none; max-width: calc(100% - 390px); min-width: 0; }
.headline { position: absolute; top: 12px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; align-items: center; gap: 9px; max-width: min(640px, calc(100% - 420px)); min-width: 200px; background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 7px 16px 7px 12px; box-shadow: var(--shadow-2); font-weight: 500; cursor: pointer; }
.headline .dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.headline.warn .dot { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-soft); }
.headline.danger { border-color: var(--danger); }
.headline.danger .dot { background: var(--danger); box-shadow: 0 0 0 3px var(--danger-soft); animation: blink 1s steps(2) infinite; }
.headline span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.view-tools { position: absolute; bottom: 12px; left: 12px; z-index: 5; display: flex; flex-direction: column; gap: 4px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 4px; box-shadow: var(--shadow-1); }
.hint-bar { position: absolute; bottom: 12px; right: 12px; z-index: 4; font-size: 12.5px; color: var(--ink-2); background: color-mix(in srgb, var(--panel) 88%, transparent); border: 1px solid var(--line-2); border-radius: 8px; padding: 5px 10px; max-width: 60%; pointer-events: none; }
.tip { position: absolute; z-index: 20; pointer-events: none; background: #15232b; color: #fff; border-radius: 8px; padding: 7px 10px; font-size: 12.5px; line-height: 1.45; box-shadow: var(--shadow-2); max-width: 280px; transform: translate(-50%, calc(-100% - 14px)); }
.tip b { font-weight: 700; }
.tip .v { font: 600 12px var(--mono); color: #ffd46b; direction: ltr; display: inline-block; }
.tip .mut { color: #aebdc1; }
.empty-state { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; z-index: 3; }
.empty-card { pointer-events: auto; text-align: center; background: color-mix(in srgb, var(--panel) 94%, transparent); border: 1px solid var(--line); border-radius: 16px; padding: 26px 30px; box-shadow: var(--shadow-2); max-width: 430px; }
.empty-card h3 { margin: 0 0 6px; font-size: 18px; }
.empty-card p { margin: 0 0 16px; color: var(--ink-2); }
.empty-card .row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.drop-hint { position: absolute; inset: 10px; border: 2px dashed var(--primary); border-radius: 14px; background: color-mix(in srgb, var(--primary-soft) 45%, transparent); z-index: 4; pointer-events: none; display: none; }
.stage.dropping .drop-hint { display: block; }
.fallback-note { position: absolute; top: 60px; left: 50%; transform: translateX(-50%); background: var(--warn-soft); color: var(--warn); padding: 6px 12px; border-radius: 8px; z-index: 5; font-size: 13px; }

/* ---------- بطاقة الدرس ---------- */
.coach { position: absolute; top: 12px; left: 12px; z-index: 6; width: 344px; max-height: calc(100% - 24px); display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-2); overflow: hidden; }
.coach-head { padding: 12px 14px 10px; border-bottom: 1px solid var(--line-2); }
.coach-top { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-3); }
.coach-top .spacer { flex: 1; }
.coach h3 { margin: 4px 0 2px; font-size: 16px; }
.coach .goal { margin: 0; color: var(--ink-2); font-size: 13px; }
.progress { height: 5px; background: var(--panel-3); border-radius: 3px; overflow: hidden; margin-top: 9px; }
.progress > i { display: block; height: 100%; background: var(--primary); border-radius: 3px; transition: width .35s; }
.coach-body { overflow: auto; padding: 10px 14px 14px; scrollbar-width: thin; }
.coach details { border: 1px solid var(--line-2); border-radius: 10px; padding: 0 12px; margin-bottom: 10px; background: var(--panel-2); }
.coach summary { cursor: pointer; padding: 8px 0; font-weight: 600; font-size: 13px; list-style: none; display: flex; align-items: center; gap: 6px; }
.coach summary::-webkit-details-marker { display: none; }
.coach details p { margin: 0 0 8px; font-size: 13.5px; }
.idea { background: var(--amber-soft); border-inline-start: 3px solid var(--amber); border-radius: 8px; padding: 8px 10px; margin: 4px 0 10px; font-size: 13.5px; font-weight: 600; }
[data-theme="dark"] .idea { color: #ffe2a0; }
.tasks { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.task { display: grid; grid-template-columns: 24px 1fr; gap: 8px; align-items: start; padding: 8px 10px; border-radius: 10px; border: 1px solid transparent; font-size: 13.5px; color: var(--ink-2); }
.task .ck { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--line); display: grid; place-items: center; font-size: 12px; font-weight: 700; color: var(--ink-3); background: var(--panel); }
.task.cur { border-color: var(--primary); background: var(--primary-soft); color: var(--ink); font-weight: 500; }
.task.cur .ck { border-color: var(--primary); color: var(--primary); }
.task.done { color: var(--ink-3); }
.task.done .ck { background: var(--ok); border-color: var(--ok); color: #fff; }
.task.done .ck svg { width: 14px; height: 14px; stroke-width: 3; }
.task .hint { display: block; margin-top: 4px; font-size: 12.5px; color: var(--ink-2); font-weight: 400; }
.linkish { border: 0; background: none; color: var(--primary); padding: 0; font-size: 12.5px; text-decoration: underline; text-underline-offset: 3px; }
.quiz { margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.quiz h4 { margin: 0 0 8px; font-size: 13.5px; }
.quiz .ans { display: block; width: 100%; text-align: start; margin-top: 6px; padding: 8px 10px; border-radius: 9px; border: 1px solid var(--line); background: var(--panel); font-size: 13.5px; }
.quiz .ans:hover { border-color: var(--primary); }
.quiz .ans.right { border-color: var(--ok); background: var(--ok-soft); font-weight: 600; }
.quiz .ans.wrong { border-color: var(--danger); background: var(--danger-soft); }
.quiz .expl { margin: 8px 0 0; font-size: 13px; color: var(--ink-2); }
.quiz.locked { opacity: .55; }
.done-card { text-align: center; padding: 14px 8px 4px; }
.done-card .big { width: 48px; height: 48px; border-radius: 50%; background: var(--ok); color: #fff; display: grid; place-items: center; margin: 0 auto 8px; }
.done-card .big svg { width: 26px; height: 26px; stroke-width: 3; }
.coach.min .coach-body { display: none; }
.coach.min { width: 300px; }

/* ---------- اللوحة الجانبية (الخصائص) ---------- */
.insp-head { padding: 12px 14px 10px; border-bottom: 1px solid var(--line-2); display: flex; align-items: flex-start; gap: 10px; }
.insp-head .th { width: 52px; height: 44px; flex: none; display: grid; place-items: center; background: var(--panel-2); border-radius: 9px; }
.insp-head .th img { max-width: 48px; max-height: 40px; }
.insp-head .meta { flex: 1; min-width: 0; }
.insp-head input.name { width: 100%; font-size: 16px; font-weight: 700; border: 1px solid transparent; border-radius: 7px; background: none; padding: 2px 6px; margin-inline-start: -6px; }
.insp-head input.name:hover { border-color: var(--line); }
.insp-head input.name:focus { border-color: var(--primary); outline: none; background: var(--panel); }
.insp-head .type { font-size: 12.5px; color: var(--ink-3); }
.insp-actions { display: flex; gap: 2px; padding: 6px 10px; border-bottom: 1px solid var(--line-2); }
.insp-body { overflow: auto; flex: 1; padding: 4px 14px 20px; scrollbar-width: thin; }
.sec { padding: 12px 0; border-bottom: 1px solid var(--line-2); }
.sec:last-child { border-bottom: 0; }
.sec > h4 { margin: 0 0 8px; font-size: 12.5px; color: var(--ink-3); font-weight: 600; display: flex; align-items: center; gap: 6px; }
.sec > h4 .spacer { flex: 1; }
.help { font-size: 13px; color: var(--ink-2); margin: 0; }
.readings { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.reading { background: var(--panel-2); border: 1px solid var(--line-2); border-radius: 10px; padding: 8px 10px; min-width: 0; }
.reading.wide { grid-column: 1 / -1; }
.reading small { display: block; font-size: 12px; color: var(--ink-3); }
.reading b { font: 700 18px var(--mono); direction: ltr; display: block; text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.reading.hero b { font-size: 26px; color: var(--primary); }
.reading .add { float: left; margin-top: -2px; }
.idle-note { font-size: 13px; color: var(--ink-3); background: var(--panel-2); border-radius: 9px; padding: 9px 11px; display: flex; gap: 8px; align-items: center; }
.field { display: grid; gap: 5px; margin-bottom: 12px; }
.field > label { font-size: 13px; font-weight: 600; display: flex; justify-content: space-between; gap: 8px; }
.field > label span { font-weight: 400; color: var(--ink-3); font-size: 12px; }
.in { display: flex; align-items: stretch; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; height: 34px; }
.in:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.in input { flex: 1; min-width: 0; border: 0; background: none; padding: 0 10px; direction: ltr; text-align: right; font-family: var(--mono); }
.in input:focus { outline: none; }
.in .unit { display: grid; place-items: center; padding: 0 10px; background: var(--panel-2); color: var(--ink-2); border-inline-start: 1px solid var(--line); font-size: 13px; min-width: 38px; }
.in.bad { border-color: var(--danger); }
.err-text { color: var(--danger); font-size: 12px; }
select.sel { height: 34px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); padding: 0 8px; width: 100%; }
.presets { display: flex; flex-wrap: wrap; gap: 4px; }
.presets button { height: 24px; padding: 0 8px; border-radius: 6px; border: 1px solid var(--line-2); background: var(--panel-2); font: 12px var(--mono); direction: ltr; color: var(--ink-2); }
.presets button:hover { border-color: var(--primary); color: var(--primary); }
.presets button.on { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); font-weight: 700; }
.range { display: flex; align-items: center; gap: 10px; }
.range input[type=range] { flex: 1; accent-color: var(--primary); }
.range output { font: 600 13px var(--mono); min-width: 52px; text-align: left; direction: ltr; }
.toggle { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 6px 0; cursor: pointer; font-size: 13.5px; font-weight: 600; }
.switch { position: relative; width: 40px; height: 22px; flex: none; }
.switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.switch i { position: absolute; inset: 0; background: var(--panel-3); border: 1px solid var(--line); border-radius: 11px; transition: .15s; pointer-events: none; }
.switch i::after { content: ""; position: absolute; top: 2px; right: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, .25); transition: .15s; }
.switch input:checked + i { background: var(--primary); border-color: var(--primary); }
.switch input:checked + i::after { right: 20px; }
.swatches { display: flex; gap: 6px; flex-wrap: wrap; }
.swatch { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--panel); box-shadow: 0 0 0 1px var(--line); }
.swatch.on { box-shadow: 0 0 0 2px var(--ink); }
.pins { display: grid; gap: 2px; }
.pinrow { display: grid; grid-template-columns: 58px 1fr auto; gap: 8px; align-items: center; padding: 5px 6px; border-radius: 7px; font-size: 12.5px; }
.pinrow:hover { background: var(--panel-2); }
.pinrow code { font: 600 12px var(--mono); direction: ltr; background: var(--panel-3); border-radius: 5px; padding: 1px 5px; text-align: center; }
.pinrow .d { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pinrow .v { font: 12px var(--mono); direction: ltr; color: var(--ink-2); }
.pinrow .v.free { color: var(--ink-3); font-family: var(--font); }
.diag { display: grid; gap: 8px; }
.dg { display: grid; grid-template-columns: 22px 1fr; gap: 8px; padding: 10px; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--line-2); font-size: 13.5px; }
.dg .ic { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; }
.dg .ic svg { width: 14px; height: 14px; stroke-width: 2.4; }
.dg.danger { background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.dg.danger .ic { background: var(--danger); color: #fff; }
.dg.warn { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.dg.warn .ic { background: var(--amber); color: #2b2000; }
.dg.info .ic { background: var(--info-soft); color: var(--info); }
.dg.ok { background: var(--ok-soft); border-color: transparent; }
.dg.ok .ic { background: var(--ok); color: #fff; }
.dg p { margin: 0; }
.dg .fix { margin-top: 3px; color: var(--ink-2); font-size: 12.5px; }
.dg .go-row { display: flex; gap: 14px; margin-top: 5px; }
.dg .go-row:empty { display: none; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.stat { background: var(--panel-2); border-radius: 9px; padding: 8px; text-align: center; }
.stat b { display: block; font-size: 18px; }
.stat small { color: var(--ink-3); font-size: 12px; }
.howto { margin: 0; padding: 0; list-style: none; display: grid; gap: 7px; font-size: 13px; color: var(--ink-2); }
.howto li { display: grid; grid-template-columns: 26px 1fr; gap: 6px; align-items: start; }
.howto li .ic { width: 26px; height: 26px; border-radius: 7px; background: var(--panel-2); display: grid; place-items: center; color: var(--ink-2); }
.howto li .ic svg { width: 15px; height: 15px; }
.mpins { display: grid; gap: 4px; max-height: 260px; overflow: auto; }
.mpin { display: grid; grid-template-columns: 46px 1fr auto; gap: 6px; align-items: center; font-size: 12.5px; }
.mpin code { font: 600 12px var(--mono); direction: ltr; text-align: center; }
.mpin select { height: 28px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); font-size: 12.5px; }

/* ---------- الشريط السفلي (الكود، التسلسلي، الهاتف، الراسم) ---------- */
.dock { background: var(--panel); border-top: 1px solid var(--line); display: flex; flex-direction: column; min-height: 40px; }
.dock-bar { display: flex; align-items: center; gap: 2px; padding: 0 8px; height: 40px; flex: none; border-bottom: 1px solid transparent; }
.dock.open .dock-bar { border-bottom-color: var(--line-2); }
.dock-tab { display: inline-flex; align-items: center; gap: 7px; height: 32px; padding: 0 12px; border: 0; background: none; border-radius: 8px; color: var(--ink-2); font-weight: 500; white-space: nowrap; }
.dock-tab:hover { background: var(--panel-2); color: var(--ink); }
.dock-tab.on { background: var(--primary-soft); color: var(--primary); font-weight: 700; }
.dock-tab .badge { height: 18px; min-width: 18px; font-size: 11px; }
.dock-resize { height: 6px; margin-top: -3px; cursor: ns-resize; flex: none; position: relative; z-index: 2; }
.dock-resize:hover { background: var(--primary-soft); }
.dock-body { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.dock-tools { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-bottom: 1px solid var(--line-2); flex-wrap: wrap; }
.dock-tools .spacer { flex: 1; }
.status-line { font-size: 12.5px; color: var(--ink-2); display: flex; align-items: center; gap: 6px; }
.status-line.err { color: var(--danger); font-weight: 600; }
.status-line.ok { color: var(--ok); }
.status-line.warn { color: var(--warn); }

.editor { position: relative; flex: 1; min-height: 0; display: grid; grid-template-columns: auto 1fr; direction: ltr; background: var(--code-bg); overflow: hidden; }
.gutter { background: var(--code-gutter); color: var(--ink-3); font: 13px/20px var(--mono); padding: 10px 8px 10px 12px; text-align: right; user-select: none; overflow: hidden; min-width: 44px; }
.gutter .err { color: #fff; background: var(--danger); border-radius: 4px; }
.code-wrap { position: relative; overflow: auto; }
.code-wrap pre, .code-wrap textarea { margin: 0; padding: 10px 14px; font: 13px/20px var(--mono); tab-size: 2; white-space: pre; border: 0; min-width: 100%; min-height: 100%; }
.code-wrap pre { position: absolute; inset: 0; pointer-events: none; color: var(--ink); }
.code-wrap textarea { position: relative; display: block; resize: none; background: transparent; color: transparent; caret-color: var(--ink); outline: none; overflow: hidden; width: 100%; }
.code-wrap textarea::selection { background: rgba(14, 110, 85, .22); color: transparent; }
.code-wrap .errline { position: absolute; left: 0; right: 0; height: 20px; background: rgba(196, 61, 47, .12); border-left: 3px solid var(--danger); pointer-events: none; }
.tk-k { color: #8f3aa6; font-weight: 600; } .tk-t { color: #1c6aa6; } .tk-n { color: #b35c00; } .tk-s { color: #177a4c; } .tk-c { color: #7c8a8f; font-style: italic; } .tk-p { color: #a2361f; } .tk-f { color: #4b50b0; }
[data-theme="dark"] .tk-k { color: #d09bff; } [data-theme="dark"] .tk-t { color: #71b7ff; } [data-theme="dark"] .tk-n { color: #ffb86b; } [data-theme="dark"] .tk-s { color: #7fd6a3; } [data-theme="dark"] .tk-p { color: #ff8f7a; } [data-theme="dark"] .tk-f { color: #9fa6ff; }
.no-board { padding: 26px; text-align: center; color: var(--ink-2); }
.serial-out { flex: 1; min-height: 0; overflow: auto; margin: 0; padding: 10px 14px; font: 13px/1.5 var(--mono); direction: ltr; text-align: left; white-space: pre-wrap; word-break: break-all; background: var(--code-bg); }
.serial-out .muted { color: var(--ink-3); font-family: var(--font); direction: rtl; text-align: right; display: block; }
.send-row { display: flex; gap: 6px; padding: 8px 10px; border-top: 1px solid var(--line-2); }
.send-row input { flex: 1; height: 34px; border: 1px solid var(--line); border-radius: 8px; padding: 0 10px; background: var(--panel); font-family: var(--mono); }
.send-row input:placeholder-shown { font-family: var(--font); }
.send-row input:focus { outline: none; border-color: var(--primary); }
.phone-wrap { flex: 1; min-height: 0; display: flex; justify-content: center; padding: 10px; gap: 16px; overflow: auto; }
.phone { width: 300px; border: 8px solid #1f272a; border-radius: 28px; background: #eef1ef; display: flex; flex-direction: column; overflow: hidden; min-height: 260px; box-shadow: var(--shadow-2); }
[data-theme="dark"] .phone { background: #0f1517; border-color: #303b3f; }
.phone-top { background: #1f272a; color: #fff; padding: 6px 12px 8px; font-size: 12.5px; display: flex; justify-content: space-between; align-items: center; }
.phone-top .st { display: flex; align-items: center; gap: 6px; }
.phone-top .st i { width: 8px; height: 8px; border-radius: 50%; background: #8a969a; }
.phone-top .st.on i { background: #43d18b; }
.chat { flex: 1; overflow: auto; padding: 10px; display: flex; flex-direction: column; gap: 6px; }
.bub { max-width: 80%; padding: 6px 10px; border-radius: 14px; font: 13px/1.4 var(--mono); direction: ltr; white-space: pre-wrap; word-break: break-word; }
.bub.rx { align-self: flex-start; background: #fff; border: 1px solid #dde3e0; }
[data-theme="dark"] .bub.rx { background: #1d2629; border-color: #2c3a3e; }
.bub.tx { align-self: flex-end; background: var(--primary); color: #fff; }
.bub.lost { opacity: .5; text-decoration: line-through; }
.chat .muted { color: var(--ink-3); font-size: 12.5px; text-align: center; margin: auto 0; }
.phone .quick { display: flex; gap: 6px; padding: 6px 8px 0; }
.phone .quick button { flex: 1; height: 30px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); font: 600 13px var(--mono); }
.phone .send-row { border-top: 0; }
.phone-help { max-width: 320px; font-size: 13px; color: var(--ink-2); align-self: center; }
.scope-wrap { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 250px; }
.scope-wrap canvas { width: 100%; height: 100%; display: block; background: #0f1a1b; }
.scope-side { border-inline-start: 1px solid var(--line-2); padding: 10px; overflow: auto; display: grid; align-content: start; gap: 8px; min-width: 0; }
.scope-side .seg { display: flex; }
.scope-side .seg button { flex: 1; padding: 0 4px; justify-content: center; }
.chan { display: grid; grid-template-columns: 12px 1fr auto; align-items: center; gap: 8px; padding: 7px 8px; border-radius: 8px; background: var(--panel-2); font-size: 12.5px; }
.chan i { width: 12px; height: 12px; border-radius: 3px; }
.chan b { font: 600 12.5px var(--mono); direction: ltr; display: block; }
.scope-empty { display: grid; place-items: center; color: #9fb0b2; font-size: 13px; text-align: center; padding: 20px; }

/* ---------- النوافذ ---------- */
.modal-back { position: fixed; inset: 0; z-index: 50; background: rgba(12, 22, 26, .45); display: grid; place-items: center; padding: 20px; animation: fade .15s; }
@keyframes fade { from { opacity: 0; } }
.modal { background: var(--panel); border-radius: 16px; box-shadow: var(--shadow-3); width: min(760px, 100%); max-height: calc(100vh - 40px); display: flex; flex-direction: column; overflow: hidden; animation: pop .18s; }
@keyframes pop { from { transform: translateY(8px) scale(.985); opacity: 0; } }
.modal.wide { width: min(1080px, 100%); }
.modal.narrow { width: min(460px, 100%); }
.modal-head { display: flex; align-items: center; gap: 10px; padding: 16px 20px 12px; border-bottom: 1px solid var(--line-2); }
.modal-head h2 { margin: 0; font-size: 18px; flex: 1; }
.modal-body { overflow: auto; padding: 16px 20px 20px; }
.modal-foot { display: flex; justify-content: flex-start; gap: 8px; padding: 12px 20px; border-top: 1px solid var(--line-2); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.card { text-align: start; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; min-height: 96px; }
.card:hover { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.card b { font-size: 14.5px; }
.card p { margin: 0; font-size: 12.5px; color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { margin-top: auto; display: flex; gap: 6px; align-items: center; font-size: 12px; color: var(--ink-3); padding-top: 6px; }
.card.done { border-color: color-mix(in srgb, var(--ok) 40%, var(--line)); }
.card .check { color: var(--ok); display: inline-flex; align-items: center; gap: 4px; font-weight: 600; }
.chapter { margin-bottom: 18px; }
.chapter h3 { margin: 0 0 2px; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.chapter > p { margin: 0 0 10px; color: var(--ink-3); font-size: 13px; }
.lvl { display: inline-flex; gap: 2px; }
.lvl i { width: 6px; height: 6px; border-radius: 50%; background: var(--line); }
.lvl i.on { background: var(--amber); }

/* الشاشة الافتتاحية */
.home-back { position: fixed; inset: 0; z-index: 45; background: radial-gradient(1200px 600px at 70% 0%, color-mix(in srgb, var(--primary) 22%, var(--bg)), var(--bg)); display: grid; place-items: center; padding: 24px; overflow: auto; }
.home { width: min(980px, 100%); }
.home-hero { display: flex; align-items: center; gap: 16px; margin-bottom: 26px; }
.home-hero .mark { width: 58px; height: 58px; border-radius: 15px; background: var(--primary); display: grid; place-items: center; box-shadow: var(--shadow-2); }
.home-hero .mark svg { width: 36px; height: 36px; stroke: #fff; }
.home-hero h1 { margin: 0; font-size: 28px; }
.home-hero p { margin: 2px 0 0; color: var(--ink-2); font-size: 15px; }
.home-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 14px; }
.hcard { text-align: start; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 8px; min-height: 190px; box-shadow: var(--shadow-1); }
.hcard:hover { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft), var(--shadow-2); }
.hcard .ic { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.hcard .ic svg { width: 24px; height: 24px; }
.hcard b { font-size: 17px; }
.hcard p { margin: 0; color: var(--ink-2); font-size: 13.5px; }
.hcard .go { margin-top: auto; font-weight: 600; color: var(--primary); font-size: 13.5px; }
.hcard.hero { background: var(--primary); border-color: var(--primary-2); color: #fff; }
.hcard.hero .ic { background: rgba(255, 255, 255, .16); color: #fff; }
.hcard.hero p { color: rgba(255, 255, 255, .85); }
.hcard.hero .go { color: #ffd46b; }
.home-foot { display: flex; gap: 10px; margin-top: 16px; align-items: center; flex-wrap: wrap; color: var(--ink-2); font-size: 13px; }
.home-foot .spacer { flex: 1; }
.resume { display: flex; align-items: center; gap: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin-bottom: 14px; }
.resume b { font-size: 14px; }
.resume small { display: block; color: var(--ink-3); }
.resume .spacer { flex: 1; }

/* الإشعارات والجولة */
.toasts { position: fixed; top: 64px; left: 50%; transform: translateX(-50%); z-index: 70; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.toast { pointer-events: auto; background: #15232b; color: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow-2); font-size: 13.5px; display: flex; align-items: center; gap: 10px; animation: pop .2s; max-width: 520px; }
.toast.ok { background: #0f5c47; } .toast.err { background: #8e2b21; }
.toast button { background: rgba(255, 255, 255, .14); border: 0; color: #fff; border-radius: 6px; padding: 3px 9px; }
.tour-back { position: fixed; inset: 0; z-index: 80; pointer-events: none; }
.tour-hole { position: fixed; border-radius: 12px; box-shadow: 0 0 0 9999px rgba(12, 22, 26, .55); transition: all .25s; pointer-events: none; }
.tour-card { position: fixed; z-index: 81; width: 320px; background: var(--panel); border-radius: 14px; box-shadow: var(--shadow-3); padding: 16px; pointer-events: auto; }
.tour-card h3 { margin: 0 0 6px; font-size: 16px; }
.tour-card p { margin: 0 0 12px; color: var(--ink-2); font-size: 13.5px; }
.tour-card .row { display: flex; gap: 6px; align-items: center; }
.tour-card .row .spacer { flex: 1; }
.tour-card .steps { font-size: 12px; color: var(--ink-3); }
.kb { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; align-items: center; font-size: 13.5px; }
.kb h4 { grid-column: 1 / -1; margin: 10px 0 0; font-size: 13px; color: var(--ink-3); }
.form-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line-2); }
.form-row:last-child { border-bottom: 0; }
.form-row small { display: block; color: var(--ink-3); font-size: 12.5px; }
.rec { display: inline-flex; align-items: center; gap: 6px; color: var(--danger); font-weight: 700; font-size: 13px; }
.rec i { width: 9px; height: 9px; border-radius: 50%; background: var(--danger); animation: blink 1s steps(2) infinite; }
.loading { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; background: var(--bg); color: var(--ink-2); font-size: 15px; }
.loading .bar { width: 220px; height: 4px; border-radius: 2px; background: var(--panel-3); overflow: hidden; margin: 12px auto 0; }
.loading .bar i { display: block; height: 100%; width: 40%; background: var(--primary); animation: slide 1.1s ease-in-out infinite; }
@keyframes slide { from { transform: translateX(-160%); } to { transform: translateX(260%); } }

@media (max-width: 1500px) { .save-dot { display: none; } }
@media (max-width: 1180px) {
  .narrow-only { display: inline-grid !important; }
  .main { grid-template-columns: 236px minmax(0, 1fr) 300px; }
  .brand .name { display: none; }
  .coach { width: 300px; }
  .stage.has-coach .headline { max-width: calc(100% - 340px); }
  .hint-bar:not(.ctx) { display: none; }
  .view-tools { flex-direction: row; }
}
@media (max-width: 900px) {
  .main, .app.no-lib .main, .app.no-insp .main { grid-template-columns: 0 minmax(0, 1fr) 0; }
  .app.show-lib .main { grid-template-columns: 250px minmax(0, 1fr) 0; }
  .app.show-insp .main { grid-template-columns: 0 minmax(0, 1fr) 290px; }
  .title-edit, .clock, .speed { display: none; }
  .coach { width: calc(100% - 24px); }
  .home-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }