/* ══════════════════════════════════════════════
   CNC G-Code Generator — Industrial Dark Theme
   ══════════════════════════════════════════════ */

:root {
  --bg:        #0a0e14;
  --bg1:       #0d1117;
  --bg2:       #161b22;
  --bg3:       #1c2128;
  --bg4:       #21262d;
  --border:    #30363d;
  --border2:   #3d444d;
  --text:      #e6edf3;
  --text2:     #b1bac4;
  --text3:     #8b949e;
  --accent:    #2f81f7;
  --accent-h:  #58a6ff;
  --green:     #3fb950;
  --green-h:   #56d364;
  --red:       #f85149;
  --amber:     #d29922;
  --cyan:      #79c0ff;
  --purple:    #bc8cff;
  --font-mono: 'Cascadia Code','Fira Code','Courier New',monospace;
  --radius:    6px;
  --radius-lg: 10px;
  --shadow:    0 8px 32px rgba(0,0,0,.5);
  --trans:     .15s ease;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html,body { height:100%; overflow:hidden; }

/* منع تظليل نص الواجهة عند السحب/الاختصارات. الحقول ومناطق الإخراج تبقى قابلة للنسخ. */
body { user-select: none; -webkit-user-select: none; }
input, textarea, select, [contenteditable], pre, code, .gc-body, .selectable {
  user-select: text; -webkit-user-select: text;
}

/* تركيز واضح لمستخدمي لوحة المفاتيح فقط (لا يظهر عند النقر بالفأرة) */
:focus-visible { outline: 2px solid var(--accent, #2f81f7); outline-offset: 2px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Tajawal',-apple-system,'Segoe UI',Tahoma,sans-serif;
  font-size: 13px;
  display: flex;
  flex-direction: column;
}

/* ────────── SCROLLBAR ────────── */
::-webkit-scrollbar { width:6px; height:6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ────────── TOOLBAR ────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px;
  background: var(--bg2);
  border-bottom: 2px solid var(--border);
  flex-shrink: 0;
  flex-wrap: nowrap;
  height: 44px;
  position: relative;
  z-index: 3000; /* القوائم المنسدلة فوق كل شيء */
}

.logo {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: 10px;
  flex-shrink: 0;
  text-decoration: none;
  padding: 3px 6px;
  border-radius: var(--radius);
  transition: background var(--trans);
}
.logo:hover { background: var(--bg3); }
.logo-mark { display: block; flex-shrink: 0; }
.logo-name {
  font-family: 'Tajawal', sans-serif;
  font-size: 15px;
  font-weight: 400;
  color: var(--text2);
  letter-spacing: .3px;
  white-space: nowrap;
}
.logo-name b { color: var(--text); font-weight: 700; }

/* ────────── MENU BAR (CorelDraw style) ────────── */
.menubar {
  display: flex;
  align-items: center;
  gap: 1px;
  flex-shrink: 0;
  margin-right: 4px;
}
.menu { position: relative; }
.menu-btn {
  background: transparent;
  border: none;
  color: var(--text2);
  font-family: inherit;
  font-size: 12.5px;
  padding: 5px 11px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--trans);
}
.menu-btn:hover, .menu.open > .menu-btn {
  background: var(--bg3);
  color: var(--text);
}
.menu-drop {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 210px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 5px;
  box-shadow: 0 10px 30px rgba(0,0,0,.6), 0 0 0 1px rgba(0,0,0,.35);
  z-index: 4000;
  max-height: calc(100vh - 70px);
  overflow-y: auto;
}
.menu.open > .menu-drop { display: block; animation: menuIn .1s ease-out; }
@keyframes menuIn { from { opacity: 0; transform: translateY(-3px); } to { opacity: 1; transform: none; } }

.mi {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text2);
  font-family: inherit;
  font-size: 12.5px;
  text-align: right;
  padding: 6px 26px 6px 10px;
  border-radius: 5px;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
}
.mi:hover { background: var(--accent); color: #fff; }
.mi:hover .mi-key { color: rgba(255,255,255,.75); }
.mi-key { font-size: 10.5px; color: var(--text3); font-family: var(--font-mono); }
.mi-sep { height: 1px; background: var(--border); margin: 5px 8px; }
.mi-label {
  font-size: 10px;
  color: var(--text3);
  padding: 4px 10px 2px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.mi.checked::before {
  content: '✓';
  position: absolute;
  right: 8px;
  color: var(--green);
  font-weight: 700;
}
.mi.checked:hover::before { color: #fff; }

.tool-group {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 0 8px;
  border-right: 1px solid var(--border);
}
.tool-group:last-of-type { border-right: none; }

.group-label {
  font-size: 10px;
  color: var(--text3);
  margin-left: 4px;
  text-transform: uppercase;
  letter-spacing: .8px;
}

.tool-btn {
  width: 30px; height: 30px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--trans);
}
.tool-btn:hover  { background: var(--bg4); color: var(--text); border-color: var(--border); }
.tool-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.tbtn {
  padding: 4px 10px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
  transition: all var(--trans);
  flex-shrink: 0;
  height: 28px;
  display: flex; align-items: center; gap: 4px;
}
.tbtn:hover    { background: var(--bg3); color: var(--text); border-color: var(--border2); }

/* ────────── DESIGN POLISH ────────── */
/* حلقات تركيز موحدة لإمكانية الوصول */
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
input[type="number"]:focus, input[type="text"]:focus, select:focus {
  border-color: var(--accent);
}
/* النوافذ المنبثقة: ظهور ناعم وخلفية ضبابية */
dialog.modal {
  animation: dlgIn .14s ease-out;
}
dialog.modal::backdrop {
  background: rgba(2, 4, 8, .65);
  backdrop-filter: blur(2px);
}
@keyframes dlgIn { from { opacity: 0; transform: translateY(6px) scale(.985); } to { opacity: 1; transform: none; } }
/* أزرار شريط الشكل: حالة أوضح */
.st-btn { transition: all var(--trans); }
.st-btn:hover { transform: translateY(-1px); }
/* تمييز أداة القياس "دقيق" */
#btn-precise { color: var(--text2); }
#btn-precise:hover { color: var(--accent-h); border-color: var(--accent); }
/* شارة الحالة أوضح */
.status-pill { font-weight: 500; letter-spacing: .2px; }

/* ────────── UPGRADE / PAYMENTS ────────── */
.upgrade-btn {
  background: linear-gradient(135deg, #d29922, #b8860b);
  color: #000;
  border-color: #d29922;
  font-weight: 700;
}
.upgrade-btn:hover { background: linear-gradient(135deg, #e3aa33, #d29922); color: #000; }

#dlg-upgrade { width: min(700px, 94vw); padding-bottom: 18px; }
#dlg-upgrade > .plan-sub,
#dlg-upgrade > .plan-cards,
#dlg-upgrade > .pay-methods,
#dlg-upgrade > #pay-status,
#dlg-upgrade > #pay-qr-wrap { padding-inline: 20px; }
.plan-sub { font-size: 12.5px; color: var(--text3); margin: 10px 0 14px; line-height: 1.6; }
.pc-tag { font-size: 11px; color: var(--text3); margin-top: 2px; }
.plan-card.popular { border-color: var(--accent); }
.plan-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 14px 0 18px;
  align-items: stretch;
}
.plan-card {
  position: relative;
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 14px 16px;
  cursor: pointer;
  text-align: center;
  color: var(--text2);
  transition: all var(--trans);
  font-family: inherit;
  display: flex;
  flex-direction: column;
}
.plan-card:hover    { border-color: var(--border2); transform: translateY(-2px); }
.plan-card.selected { border-color: var(--accent); background: rgba(47,129,247,.08); box-shadow: 0 6px 22px rgba(47,129,247,.18); }
.pc-badge {
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 10.5px; font-weight: 700;
  padding: 3px 11px; border-radius: 999px; white-space: nowrap;
}
.pc-name  { font-size: 15px; font-weight: 700; color: var(--text); }
.pc-price { font-size: 25px; font-weight: 800; color: var(--accent-h); margin: 8px 0 0; line-height: 1.1; }
.pc-price small { display: block; font-size: 11px; color: var(--text3); font-weight: 500; margin-top: 3px; }
.pc-feats { list-style: none; padding: 0; margin: 14px 0 0; font-size: 12px; color: var(--text2); text-align: right; }
.pc-feats li { padding: 5px 0; border-top: 1px solid var(--border); }
.pc-feats li:first-child { border-top: none; }
.pc-feats li::before { content: '✓ '; color: var(--green); font-weight: 700; }
@media (max-width: 560px) { .plan-cards { grid-template-columns: 1fr; } }

.pay-methods { margin-top: 8px; }
.pm-label { font-size: 12px; color: var(--text3); margin-bottom: 8px; }
.pay-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 14px;
  margin-bottom: 8px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--trans);
}
.pay-btn:hover:not(:disabled) { border-color: var(--accent); background: var(--bg3); }
.pay-btn:disabled { opacity: .45; cursor: not-allowed; }
.pay-logo {
  font-size: 10px;
  font-weight: 800;
  padding: 3px 7px;
  border-radius: 4px;
  letter-spacing: .5px;
}
.pay-logo.fib  { background: #00a651; color: #fff; }
.pay-logo.visa { background: #1a1f71; color: #fff; }
.pay-logo.mc   { background: #eb001b; color: #fff; }

.pay-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12.5px;
  color: var(--text2);
}

.sim-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* 3D simulation HUD */
.sim3d-hud {
  position: absolute;
  top: 8px; right: 8px;
  display: flex; align-items: center; gap: 6px;
  z-index: 5;
  font-size: 11px;
  color: var(--text3);
  background: rgba(13,17,23,.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 8px;
  backdrop-filter: blur(4px);
}
.sim3d-hint { opacity: .7; }
#sim-3d-toggle.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Toolbar SVG icons — outline style, inherit button colour */
.ti {
  width: 15px; height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.tbtn.primary .ti { stroke-width: 1.6; }
.tbtn.primary  { background: var(--green); color: #000; border-color: var(--green); font-weight: 700; }
.tbtn.primary:hover { background: var(--green-h); }
.tbtn.danger:hover  { background: var(--red); color: #fff; border-color: var(--red); }
.tbtn.icon-only { width: 28px; padding: 0; justify-content: center; }
.tbtn-div { width: 1px; height: 20px; background: var(--border); margin: 0 2px; flex-shrink:0; }

.status-pill {
  margin-right: auto;
  padding: 3px 10px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 11px;
  color: var(--text3);
}
.status-pill.active { border-color: var(--green); color: var(--green); }
.status-pill.error  { border-color: var(--red);   color: var(--red); }

/* User pill (auth) */
.user-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.user-avatar {
  width: 24px; height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border2);
}
.user-avatar-placeholder { font-size: 16px; }
.user-name {
  font-size: 12px;
  color: var(--text2);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ────────── LAYOUT ────────── */
.app-layout {
  display: grid;
  grid-template-columns: 240px 1fr 400px;
  flex: 1;
  overflow: hidden;
}

/* ────────── SETTINGS PANEL ────────── */
.settings-panel {
  background: var(--bg2);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.section {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.sec-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 10px;
}

.section label, details.section label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
  padding: 0 12px;
  font-size: 11px;
  color: var(--text3);
  font-weight: 500;
}

.section input[type="number"],
.section select,
details.section input[type="number"],
details.section select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 8px;
  border-radius: var(--radius);
  font-size: 13px;
  width: 100%;
  transition: border-color var(--trans);
  outline: none;
}
.section input:focus,
.section select:focus,
details.section input:focus,
details.section select:focus { border-color: var(--accent); }

.section select option,
details.section select option { background: var(--bg2); }

.toggle-row {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  padding: 0 12px !important;
  gap: 8px !important;
  color: var(--text2) !important;
  cursor: pointer;
  margin-bottom: 6px !important;
}
.toggle-row input[type="checkbox"] { accent-color: var(--accent); width:14px; height:14px; flex-shrink:0; }

/* ────────── CANVAS WRAP ────────── */
.canvas-wrap {
  display: flex;
  flex-direction: column;
  background: var(--bg3);
  overflow: hidden;
  position: relative;
}

.canvas-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 12px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  flex-shrink: 0;
  gap: 8px;
  flex-wrap: wrap;
}

.coord-display {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  white-space: nowrap;
}
.coord-display b { color: var(--text); }

.canvas-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}
.canvas-tools label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text3);
  cursor: pointer;
}
.canvas-tools input[type="number"] {
  width: 46px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 11px;
  outline: none;
}

.icon-btn {
  width: 26px; height: 26px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--trans);
}
.icon-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.canvas-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(47,129,247,.03) 0%, transparent 70%),
    var(--bg3);
}

#main-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.canvas-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 12px;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text3);
  flex-shrink: 0;
  font-family: var(--font-mono);
}

/* ────────── OUTPUT PANEL ────────── */
.output-panel {
  display: flex;
  flex-direction: column;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.out-tabs {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg1);
}
.otab-fs {
  margin-inline-start: auto; background: none; border: none; cursor: pointer;
  color: var(--text3); font-size: 15px; padding: 6px 12px; line-height: 1;
}
.otab-fs:hover { color: var(--text); background: var(--bg3); }
/* ملء الشاشة للوحة الإخراج: تغطّي الشاشة كاملة (تتجاوز وضع الدرج على الجوال) */
.output-panel.fs {
  position: fixed; inset: 0; width: auto !important; height: auto; max-height: none;
  z-index: 2200; transform: none !important; border: none;
  box-shadow: 0 0 40px rgba(0,0,0,.6);
}

.otab {
  flex: 1;
  padding: 9px 6px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text3);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all var(--trans);
}
.otab:hover { color: var(--text2); }
.otab.active { color: var(--accent-h); border-bottom-color: var(--accent-h); }

.out-pane { display: none; flex-direction: column; flex: 1; overflow: hidden; }
.out-pane.active { display: flex; }

/* G-Code tab */
.gc-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  font-size: 11px;
  color: var(--text3);
  font-family: var(--font-mono);
}
.gc-acts { display: flex; gap: 4px; }

.mbtn {
  width: 24px; height: 24px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text3);
  cursor: pointer;
  font-size: 11px;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--trans);
}
.mbtn:hover { background: var(--bg4); color: var(--text); border-color: var(--border2); }

.gc-body {
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
  background: var(--bg);
  position: relative;
}

.gc-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text3);
  gap: 12px;
  text-align: center;
  font-size: 14px;
  pointer-events: none;
}
.gc-placeholder div { font-size: 52px; opacity: .3; }

.gc-pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  padding: 10px;
  white-space: pre;
  color: var(--text2);
  min-height: 100%;
}

/* G-code syntax highlight */
.gc-pre .g-rapid   { color: var(--red); }
.gc-pre .g-cut     { color: var(--green); }
.gc-pre .g-arc     { color: var(--cyan); }
.gc-pre .g-spindle { color: var(--purple); }
.gc-pre .g-setup   { color: var(--amber); }
.gc-pre .g-comment { color: var(--text3); font-style: italic; }

.gc-search {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.gc-search input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 8px;
  border-radius: var(--radius);
  font-size: 11px;
  outline: none;
}
.gc-search input:focus { border-color: var(--accent); }
#gc-search-info { font-size: 11px; color: var(--text3); white-space: nowrap; }

/* Stats tab */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px;
  overflow-y: auto;
}

.scard {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  text-align: center;
}
.scard.accent { border-color: var(--accent); background: rgba(47,129,247,.05); }

.sc-i { font-size: 20px; margin-bottom: 4px; }
.sc-l { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 4px; }
.sc-v { font-size: 16px; font-weight: 700; color: var(--accent-h); font-family: var(--font-mono); }
.scard.accent .sc-v { color: var(--green); }

.ai-box {
  margin: 0 12px 12px;
  padding: 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--text2);
  display: none;
}
.ai-box.visible { display: block; }
.ai-box ul { padding-right: 16px; margin-top: 6px; }
.ai-box li { margin-bottom: 4px; color: var(--text3); }

/* ════ Sim tab ════ */
.sim-pane {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.sim-canvas-wrap {
  flex: 1;
  min-height: 200px;
  position: relative;
  overflow: hidden;
  background: #0a0e14;
  border-bottom: 1px solid var(--border);
}

#sim-canvas {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: grab;
}
#sim-canvas:active { cursor: grabbing; }

.sim-bottom {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.sim-legend {
  display: flex;
  gap: 12px;
  padding: 5px 10px;
  font-size: 11px;
  color: var(--text3);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.ld {
  display: inline-block;
  width: 18px; height: 3px;
  border-radius: 2px;
  vertical-align: middle;
  margin-left: 4px;
}
.ld.rapid { background: var(--red);   opacity: .8; border-top: 1px dashed var(--red); }
.ld.cut   { background: var(--green); }
.ld.arc   { background: var(--cyan);  }

.sim-ctrl {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}
.sim-btn {
  width: 28px; height: 28px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  transition: all var(--trans);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sim-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.sim-ctrl input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
  min-width: 40px;
}
.sim-spd { font-size: 11px; color: var(--text3); font-family: var(--font-mono); min-width: 32px; }

.sim-prog-track {
  height: 3px;
  background: var(--bg4);
}
.sim-prog-fill {
  height: 100%;
  background: var(--green);
  width: 0%;
  transition: width .08s linear;
}

.sim-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 10px;
  font-size: 10px;
  color: var(--text3);
  font-family: var(--font-mono);
}
.sim-hint { color: var(--border2); font-size: 10px; }

/* ────────── MODALS ────────── */
dialog {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  color: var(--text);
  padding: 0;
  min-width: 380px;
  max-width: 90vw;
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0,0,0,.7); backdrop-filter: blur(2px); }

.modal { padding: 0; }
.modal h3 {
  font-size: 15px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.modal label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0 20px;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--text3);
  font-weight: 500;
}
.modal input[type="text"],
.modal select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 10px;
  border-radius: var(--radius);
  font-size: 13px;
  width: 100%;
  outline: none;
}
.modal input:focus, .modal select:focus { border-color: var(--accent); }
.modal .toggle-row {
  padding: 0 20px !important;
  margin-bottom: 8px !important;
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 8px !important;
  color: var(--text2) !important;
  cursor: pointer;
  font-size: 12px !important;
}

.mdl-close {
  position: absolute;
  top: 10px; left: 12px;
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 4px;
  border-radius: 4px;
  transition: all var(--trans);
}
.mdl-close:hover { color: var(--text); background: var(--bg4); }

.mdl-foot {
  display: flex;
  justify-content: flex-start;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

.btn-pri {
  padding: 8px 20px;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--trans);
}
.btn-pri:hover:not(:disabled)  { background: var(--accent-h); }
.btn-pri:disabled { opacity: .4; cursor: not-allowed; }

.btn-sec {
  padding: 8px 16px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  transition: all var(--trans);
}
.btn-sec:hover { background: var(--bg3); border-color: var(--border2); }

.btn-cnl {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text3);
  cursor: pointer;
  font-size: 13px;
  transition: all var(--trans);
  margin-right: auto;
}
.btn-cnl:hover { border-color: var(--border2); color: var(--text); }

/* Drop zone */
.drop-zone {
  margin: 16px 20px;
  border: 2px dashed var(--border2);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  color: var(--text3);
  transition: all var(--trans);
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(47,129,247,.04);
}
.dz-icon { font-size: 36px; margin-bottom: 8px; }
.dz-hint { font-size: 11px; margin-top: 8px; color: var(--text3); }
.drop-zone p { margin: 4px 0; }

#import-preview-area {
  padding: 0 20px;
  font-size: 12px;
  color: var(--green);
}

/* ────────── TOAST ────────── */
#toasts {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  padding: 9px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  animation: toastIn .25s ease, toastOut .25s ease 2.5s forwards;
  pointer-events: all;
}
.toast-info    { background: var(--bg4); border: 1px solid var(--border2); color: var(--text); }
.toast-success { background: rgba(63,185,80,.15); border: 1px solid var(--green); color: var(--green-h); }
.toast-warn    { background: rgba(210,153,34,.15); border: 1px solid var(--amber); color: var(--amber); }
.toast-error   { background: rgba(248,81,73,.15);  border: 1px solid var(--red);   color: var(--red); }

@keyframes toastIn  { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:none; } }
@keyframes toastOut { from { opacity:1; } to { opacity:0; pointer-events:none; } }

/* ────────── LOADING ────────── */
.loading-cover {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 9998;
  backdrop-filter: blur(2px);
}
.loading-box {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 28px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow);
}
.loading-box p { color: var(--text2); font-size: 14px; }

.spin {
  width: 36px; height: 36px;
  border: 3px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Ensure the loading overlay is actually hidden when the `hidden` attribute is present.
   This prevents stale or JS-modified styles from leaving the overlay visible. */
.loading-cover[hidden],
#loading[hidden] {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* ══════════════════════════════════
   Machine Control Panel
   ══════════════════════════════════ */
.modal-wide { min-width: min(600px, 92vw); max-width: 680px; }

.mc-section {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.mc-section:last-child { border-bottom: none; }

.mc-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.mc-fields {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}
.mc-fields.hidden { display: none; }
.mc-fields input, .mc-fields select { flex: 1; }

.conn-type-btn {
  padding: 5px 14px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  transition: all var(--trans);
}
.conn-type-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.cnc-pill {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-right: auto;
}
.cnc-pill.conn { background: rgba(63,185,80,.15); color: var(--green); border: 1px solid var(--green); }
.cnc-pill.disc { background: rgba(248,81,73,.1);  color: var(--red);   border: 1px solid var(--red); }

/* Position display */
.mc-pos-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.mc-pos-grid {
  display: flex;
  gap: 12px;
}
.pos-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  background: var(--bg3);
  padding: 6px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  flex: 1;
}
.pos-row b { font-family: var(--font-mono); font-size: 15px; color: var(--cyan); }
.mpos-val  { font-family: var(--font-mono); font-size: 11px; color: var(--text3); }
.axis-x { color: var(--red);    font-weight: 700; }
.axis-y { color: var(--green);  font-weight: 700; }
.axis-z { color: var(--accent); font-weight: 700; }

.machine-state {
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 700;
  background: var(--bg4);
  border: 1px solid var(--border);
}
.state-idle  { color: var(--green); border-color: var(--green); }
.state-run   { color: var(--accent); border-color: var(--accent); }
.state-alarm { color: var(--red); border-color: var(--red); }
.state-hold  { color: var(--amber); border-color: var(--amber); }

/* E-Stop */
.estop-btn {
  width: 100%;
  padding: 14px;
  background: var(--red);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all var(--trans);
}
.estop-btn:hover:not(:disabled) { background: #ff3a30; box-shadow: 0 0 20px rgba(248,81,73,.5); }
.estop-btn:disabled { opacity: .3; cursor: not-allowed; }

/* Jog grid */
.jog-step-row {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}
.jog-step-btn {
  padding: 4px 10px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
}
.jog-step-btn.active {
  background: var(--bg3);
  border-color: var(--accent);
  color: var(--accent);
}

.jog-grid {
  display: grid;
  grid-template-columns: 90px 90px 80px;
  grid-template-rows: repeat(3, 44px);
  gap: 4px;
  width: fit-content;
}
.jog-btn {
  padding: 0;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--trans);
}
.jog-btn:hover:not(:disabled) { background: var(--bg4); border-color: var(--accent); color: var(--accent); }
.jog-btn:active { background: var(--accent); color: #fff; }
.jog-center {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg4);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  color: var(--text3);
  font-size: 11px;
}
.jog-z { background: var(--bg2); border-style: dashed; }

/* Stream progress */
.stream-prog-track {
  height: 6px;
  background: var(--bg4);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}
.stream-prog-fill {
  height: 100%;
  background: var(--green);
  border-radius: 3px;
  transition: width .3s ease;
}

/* Manual command */
.mc-manual {
  display: flex;
  gap: 8px;
}
.mc-manual input { flex: 1; }

/* CNC log */
.cnc-log {
  height: 120px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text2);
  margin-top: 8px;
}
.log-line { padding: 1px 0; border-bottom: 1px solid rgba(255,255,255,.03); }

/* Overrides */
.mc-overrides { display: flex; gap: 16px; flex-wrap: wrap; }
.mc-overrides label { display: flex; gap: 8px; align-items: center; }

/* ══════════════════════════════════
   Tool Library
   ══════════════════════════════════ */
.tool-list { display: flex; flex-direction: column; gap: 6px; max-height: 400px; overflow-y: auto; }

.tool-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  transition: border-color var(--trans);
}
.tool-row:hover { border-color: var(--accent); }
.tool-info { flex: 1; }
.tool-info b { display: block; font-size: 13px; }
.tool-info span { display: block; font-size: 11px; color: var(--text3); }
.tool-actions { display: flex; gap: 6px; }

/* ══════════════════════════════════
   Projects
   ══════════════════════════════════ */
.project-list { display: flex; flex-direction: column; gap: 6px; max-height: 360px; overflow-y: auto; margin-top: 10px; }

.project-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  transition: border-color var(--trans);
}
.project-row:hover { border-color: var(--green); }
.proj-info { flex: 1; }
.proj-info b { display: block; font-size: 13px; }
.proj-info span { display: block; font-size: 11px; color: var(--text3); }
.proj-actions { display: flex; gap: 6px; }

/* ══════════════════════════════════
   Tools Rail (vertical sidebar)
   ══════════════════════════════════ */
.canvas-main {
  flex: 1;
  display: flex;
  flex-direction: row;
  direction: ltr;
  overflow: hidden;
}

.tools-rail {
  width: 50px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4px 0 12px;
  gap: 1px;
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
}

/* ────────── إرساء شريط الأدوات (يمين/يسار/أعلى/أسفل) ────────── */
.rail-grip {
  cursor: grab;
  color: var(--text3);
  font-size: 13px;
  line-height: 1;
  padding: 4px 0 6px;
  user-select: none;
  letter-spacing: 2px;
}
.rail-grip:hover { color: var(--accent-h); }
.rail-grip:active { cursor: grabbing; }

.canvas-main.dock-right  { flex-direction: row-reverse; }
.canvas-main.dock-right .tools-rail { border-right: none; border-left: 1px solid var(--border); }

.canvas-main.dock-top,
.canvas-main.dock-bottom { flex-direction: column; }
.canvas-main.dock-bottom { flex-direction: column-reverse; }

.canvas-main.dock-top .tools-rail,
.canvas-main.dock-bottom .tools-rail {
  flex-direction: row;
  width: 100%;
  height: 48px;
  padding: 0 8px;
  overflow-x: auto;
  overflow-y: hidden;
  border-right: none;
}
.canvas-main.dock-top .tools-rail    { border-bottom: 1px solid var(--border); }
.canvas-main.dock-bottom .tools-rail { border-top: 1px solid var(--border); border-bottom: none; }

/* أفقياً: أخفِ تسميات المجموعات واجعل الفواصل عمودية */
.canvas-main.dock-top .tr-group-label,
.canvas-main.dock-bottom .tr-group-label { display: none; }
.canvas-main.dock-top .tr-sep,
.canvas-main.dock-bottom .tr-sep { width: 1px; height: 26px; margin: 0 4px; }
.canvas-main.dock-top .rail-grip,
.canvas-main.dock-bottom .rail-grip { padding: 0 6px; }

/* تلميح أثناء السحب */
.canvas-main.dock-dragging { outline: 2px dashed var(--accent); outline-offset: -2px; }
.canvas-main[class*="-hint"]::after {
  content: '';
  position: absolute;
  background: rgba(47,129,247,.18);
  border: 2px solid var(--accent);
  pointer-events: none;
  z-index: 50;
}
.canvas-main { position: relative; }
.canvas-main.dock-left-hint::after   { inset: 0 auto 0 0; width: 56px; }
.canvas-main.dock-right-hint::after  { inset: 0 0 0 auto; width: 56px; }
.canvas-main.dock-top-hint::after    { inset: 0 0 auto 0; height: 52px; }
.canvas-main.dock-bottom-hint::after { inset: auto 0 0 0; height: 52px; }
.tools-rail::-webkit-scrollbar { width: 3px; }
.tools-rail::-webkit-scrollbar-track { background: transparent; }
.tools-rail::-webkit-scrollbar-thumb { background: var(--border2); }

/* CorelDraw-style group labels */
.tr-group-label {
  width: 100%;
  text-align: center;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--text3);
  text-transform: uppercase;
  padding: 5px 0 2px;
  flex-shrink: 0;
  user-select: none;
}

.tr-btn {
  width: 36px; height: 36px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--text3);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--trans);
  flex-shrink: 0;
  position: relative;
}
.tr-btn svg { width: 17px; height: 17px; pointer-events: none; }
.tr-btn:hover  { background: var(--bg4); color: var(--text); border-color: var(--border); }
.tr-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); box-shadow: 0 0 6px rgba(47,129,247,.4); }
.tr-btn.active svg { color: #fff; }

/* tooltip on hover */
.tr-btn::after {
  content: attr(title);
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg4);
  border: 1px solid var(--border2);
  color: var(--text);
  font-size: 11px;
  white-space: nowrap;
  padding: 3px 7px;
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .12s;
  z-index: 9999;
}
.tr-btn:hover::after { opacity: 1; }

.tr-sep {
  width: 28px; height: 1px;
  background: var(--border);
  margin: 2px 0;
  flex-shrink: 0;
}

/* ══════════════════════════════════
   Photoshop-style flyout groups
   ══════════════════════════════════ */
.tr-slot {
  position: relative;
  width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tr-slot .tr-btn {
  width: 36px; height: 36px;
}
/* Clickable triangle arrow in bottom-right corner */
.tr-slot .tr-arrow {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 14px; height: 14px;
  cursor: pointer;
  pointer-events: auto;
  z-index: 3;
  background: transparent;
  border: none;
  padding: 0;
}
.tr-slot .tr-arrow::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-bottom: 5px solid var(--text3);
  transition: border-bottom-color .15s ease;
}
.tr-slot:hover .tr-arrow::after { border-bottom-color: var(--accent-h); }

/* Flyout container — appended to body to escape overflow clipping */
.tr-flyout {
  display: none;
  position: fixed;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 5px;
  box-shadow: 0 8px 24px rgba(0,0,0,.55), 0 0 0 1px rgba(0,0,0,.4);
  z-index: 10000;
  flex-wrap: wrap;
  gap: 2px;
  max-width: 220px;
  animation: trFlyIn .12s ease-out;
}
.tr-flyout .tr-btn {
  width: 34px; height: 34px;
}
.tr-flyout .tr-btn::after {
  left: 50%;
  top: calc(100% + 4px);
  transform: translateX(-50%);
}
.tr-flyout::before {
  content: '';
  position: absolute;
  top: 12px;
  left: -6px;
  width: 0; height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 6px solid var(--border2);
}
@keyframes trFlyIn {
  from { opacity: 0; transform: translateX(-4px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Collapse toggle button at top of rail */
.tr-collapse {
  width: 36px; height: 24px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text3);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  margin-bottom: 4px;
  flex-shrink: 0;
  transition: all .15s;
}
.tr-collapse:hover { background: var(--bg4); color: var(--text); }
.tools-rail.collapsed {
  width: 18px;
  padding: 4px 0;
}
.tools-rail.collapsed .tr-slot,
.tools-rail.collapsed .tr-group-label,
.tools-rail.collapsed .tr-sep { display: none; }
.tools-rail.collapsed .tr-collapse {
  width: 16px;
}

/* ── Tool options in topbar ── */
.tool-opt {
  display: none;
  align-items: center;
  gap: 6px;
  background: rgba(47,129,247,.08);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 0 8px;
  height: 26px;
  margin: 0 4px;
}
.opt-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--accent-h);
  white-space: nowrap;
}
.opt-label input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 12px;
  outline: none;
}
.opt-label input:focus { border-color: var(--accent); }

/* ══════════════════════════════════
   Settings panel: collapsible details
   ══════════════════════════════════ */
details.section { padding: 0; }
details.section > summary.sec-title {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .8px;
  border-bottom: 1px solid var(--border);
  transition: color var(--trans);
}
details.section > summary.sec-title::-webkit-details-marker { display: none; }
details.section > summary.sec-title::before {
  content: '▶';
  font-size: 9px;
  color: var(--border2);
  transition: transform var(--trans);
  flex-shrink: 0;
}
details.section[open] > summary.sec-title::before {
  transform: rotate(90deg);
}
details.section > summary.sec-title:hover { color: var(--text2); }
details.section > *:not(summary) {
  padding: 10px 12px 2px;
}
details.section > label { padding: 0 12px; margin-bottom: 8px; }
details.section > select { margin: 8px 12px; width: calc(100% - 24px); }
.sec-spacer { height: 6px; }

/* canvas footer divider */
.cf-div { color: var(--border2); }

/* ══════════════════════════════════
   Shape Transform Toolbar
   ══════════════════════════════════ */
.shape-toolbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px 10px;
  background: rgba(47,129,247,.06);
  border-bottom: 1px solid rgba(47,129,247,.2);
  flex-wrap: nowrap;
  overflow: hidden;
}
.st-label {
  font-size: 11px;
  color: var(--text3);
  margin-left: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.st-btn {
  width: 26px; height: 26px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--trans);
  flex-shrink: 0;
}
.st-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.st-btn.st-danger:hover { background: var(--red); border-color: var(--red); }
.st-sep { width: 1px; height: 16px; background: var(--border); margin: 0 2px; flex-shrink:0; }

/* ══════════════════════════════════
   Mini Dialogs (Rotate/Scale/Array)
   ══════════════════════════════════ */
.mini-modal {
  min-width: 280px;
  max-width: 340px;
}
.mini-modal h3 {
  font-size: 14px;
  padding: 12px 20px;
}
.mini-preset-row {
  display: flex;
  gap: 6px;
  padding: 8px 20px;
}
.mini-preset {
  flex: 1;
  padding: 6px 4px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all var(--trans);
  text-align: center;
}
.mini-preset:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.mini-tabs {
  display: flex;
  margin: 8px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.mini-tab {
  flex: 1;
  padding: 6px;
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 12px;
  transition: all var(--trans);
}
.mini-tab.active { background: var(--accent); color: #fff; }
.mini-tab:not(.active):hover { background: var(--bg4); color: var(--text2); }

.mini-modal label {
  padding: 0 20px;
  margin-bottom: 8px;
  font-size: 12px;
}

/* ══════════════════════════════════
   Image Trace Dialog
   ══════════════════════════════════ */
.trace-modal {
  min-width: min(820px, 96vw);
  max-width: 900px;
}
.trace-body {
  display: flex;
  gap: 16px;
  padding: 16px 20px 8px;
}
.trace-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

/* Drop zone */
.trace-drop-zone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius-lg);
  padding: 18px 12px;
  text-align: center;
  cursor: pointer;
  color: var(--text3);
  transition: all var(--trans);
  font-size: 13px;
}
.trace-drop-zone:hover,
.trace-drop-zone.dragover { border-color: var(--accent); background: rgba(47,129,247,.05); }
.trace-drop-zone.has-image { border-color: var(--green); background: rgba(63,185,80,.05); border-style: solid; }
.trace-dz-icon { font-size: 28px; margin-bottom: 4px; }
.trace-drop-zone p { margin: 4px 0; }
.trace-hint { font-size: 11px; color: var(--text3); margin-top: 4px; }

/* Preview canvases */
.trace-canvas-wrap {
  flex: 1;
  min-height: 180px;
  background: #0a0e14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.trace-canvas-label {
  font-size: 10px;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .6px;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.trace-canvas {
  flex: 1;
  width: 100%;
  min-height: 160px;
  display: block;
  object-fit: contain;
}

/* Controls */
.trace-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}
.trace-ctrl-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text2);
}
.trace-ctrl-row > span:first-child {
  width: 130px;
  flex-shrink: 0;
  font-size: 11px;
  color: var(--text3);
}
.trace-ctrl-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}
.trace-val {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-h);
  min-width: 36px;
  text-align: left;
}
.trace-stats {
  font-size: 12px;
  color: var(--text3);
  font-family: var(--font-mono);
  padding: 4px 0;
}
.trace-stats.ok  { color: var(--green); }
.trace-stats.err { color: var(--red); }

/* ────────── RESPONSIVE ────────── */
@media (max-width: 1100px) {
  .app-layout { grid-template-columns: 220px 1fr 360px; }
}

/* أزرار الأدراج + الخلفية المعتمة (مخفية على سطح المكتب) */
.drawer-toggle {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--text2); font-size: 18px; padding: 6px 9px; line-height: 1; border-radius: 6px;
}
.drawer-toggle:hover { background: var(--bg3); color: var(--text); }
.drawer-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  z-index: 1500; opacity: 0; pointer-events: none; transition: opacity .25s;
}
.drawer-backdrop.on { opacity: 1; pointer-events: auto; }

/* اللوحي والهاتف: اللوحة كامل العرض، واللوحتان الجانبيتان أدراج منزلقة */
@media (max-width: 1024px) {
  .drawer-toggle { display: inline-flex; align-items: center; }
  .app-layout { grid-template-columns: 1fr; }
  .settings-panel, .output-panel {
    position: fixed; top: 44px; bottom: 0; width: min(86vw, 380px); max-height: none;
    z-index: 1600; transition: transform .25s ease; box-shadow: 0 0 30px rgba(0,0,0,.55);
  }
  .settings-panel { right: 0; transform: translateX(105%); border-left: none; }
  .output-panel   { left: 0;  transform: translateX(-105%); }
  .settings-panel.drawer-open, .output-panel.drawer-open { transform: translateX(0); }
  /* أهداف لمس أكبر */
  .tbtn, .menu-btn, .btn { min-height: 38px; }
}

/* زر القائمة المدمجة ☰ */
.menu-hamburger {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--text2); font-size: 19px; padding: 4px 9px; line-height: 1; border-radius: var(--radius);
}
.menu-hamburger:hover { background: var(--bg3); color: var(--text); }

/* هاتف: شريط القوائم يُطوى خلف ☰ ويُعرض رأسياً */
@media (max-width: 768px) {
  .menu-hamburger { display: inline-flex; align-items: center; }
  .menubar {
    display: none; position: absolute; top: 44px; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--bg3); border: 1px solid var(--border2);
    border-radius: 0 0 10px 10px; padding: 6px; min-width: 220px;
    z-index: 4000; box-shadow: 0 10px 30px rgba(0,0,0,.6);
    max-height: calc(100vh - 44px); overflow-y: auto;
  }
  .menubar.open { display: flex; }
  .menu { width: 100%; }
  .menu-btn { width: 100%; text-align: right; }
  .menu-drop {
    position: static; box-shadow: none; border: none; min-width: 0;
    background: transparent; padding: 2px 8px 4px 14px; max-height: none;
  }
}

/* ════════════ تحسينات التصميم — دفعة 10 ════════════ */

/* 1) تلميحات فورية */
.dq-tip {
  position: fixed; z-index: 99999; transform: translateX(-50%);
  background: #1c2128; color: var(--text); border: 1px solid var(--border2);
  padding: 4px 9px; border-radius: 6px; font-size: 11.5px; font-family: 'Tajawal', sans-serif;
  pointer-events: none; opacity: 0; transition: opacity .12s; white-space: nowrap;
  box-shadow: 0 4px 14px rgba(0,0,0,.5); max-width: 280px;
}
.dq-tip.on { opacity: 1; }

/* 2) الحالة الفارغة على اللوحة */
.canvas-area { position: relative; }
.canvas-empty {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 8px;
  color: var(--text3); pointer-events: none; text-align: center;
}
.canvas-empty p { font-size: 15px; color: var(--text2); }
.canvas-empty span { font-size: 12px; }
.canvas-empty b { color: var(--accent-h); pointer-events: auto; cursor: pointer; text-decoration: underline; }

/* 3) توهج زر التوليد عند الجاهزية */
@keyframes readyPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(63,185,80,.5); }
  50%     { box-shadow: 0 0 0 5px rgba(63,185,80,0); }
}
.tbtn.primary.ready-glow { animation: readyPulse 1.8s ease-in-out infinite; }

/* 4) فحص الجاهزية */
.pf-verdict { padding: 8px 12px; border-radius: 8px; font-weight: 700; text-align: center; margin-bottom: 10px; font-size: 14px; }
.pf-verdict.good { background: rgba(63,185,80,.12); color: var(--green-h); border: 1px solid var(--green); }
.pf-verdict.bad  { background: rgba(248,81,73,.12); color: #ff7b72; border: 1px solid var(--red); }
.pf-list { max-height: 340px; overflow-y: auto; display: flex; flex-direction: column; gap: 4px; }
.pf-row { display: grid; grid-template-columns: 22px auto 1fr; gap: 8px; align-items: center;
  padding: 7px 10px; border-radius: 6px; background: var(--bg3); font-size: 12.5px; }
.pf-row.bad  { background: rgba(248,81,73,.08); }
.pf-row.warn { background: rgba(210,153,34,.08); }
.pf-row .pf-d { color: var(--text3); text-align: left; font-size: 11.5px; }
.pf-row b { color: var(--text); }

/* 5) ملفات الآلات */
.preset-list { display: flex; flex-direction: column; gap: 6px; max-height: 300px; overflow-y: auto; }
.preset-row { display: grid; grid-template-columns: 1fr auto auto auto; gap: 8px; align-items: center;
  padding: 8px 10px; background: var(--bg3); border-radius: 7px; border: 1px solid var(--border); }
.preset-row b { color: var(--text); font-size: 13px; }
.preset-row span { color: var(--text3); font-size: 11px; }

/* 6) محرر G-Code اليدوي */
.gc-pre.editing {
  outline: 2px solid var(--amber); outline-offset: -2px;
  background: rgba(210,153,34,.04); cursor: text;
}

/* 7) شريط الحالة: اسم الأداة */
#footer-tool { color: var(--accent-h); font-weight: 500; }

/* 8) أزرار الشريط الرئيسي للنسخ/اللصق المنفصلة — أوضح */
.toolbar .tbtn.icon-only { transition: all var(--trans); }
.toolbar .tbtn.icon-only:active { transform: scale(.92); }

/* 9) صف القائمة المعطّل بصرياً عند عدم وجود تحديد — تلميح ناعم */
.mi:active { transform: scale(.98); }

/* 10) تمرير أنعم للوحات */
.settings-panel, .output-panel, .pf-list, .preset-list { scroll-behavior: smooth; }
.settings-panel::-webkit-scrollbar { width: 7px; }