/* Шежіре v2 — тақырып айнымалыларын app.js орнатады (DOM мен canvas экспорты бірдей болуы үшін) */

:root{
  --bg:#FFFFFF; --text:#2C2C2B; --muted:#7D7A75; --border:#E6E5E3;
  --panel:#FFFFFF; --panel-bd:#E6E5E3; --hover:#F0EFED;
  --accent:#2783DE; --accent-ct:#FFFFFF; --danger:#E56458; --danger-soft:#FCE9E7;
  --wire:#A9AEB6; --grid:#E4E3E0; --grid-size:26px;
  --nrad:12px; --nbw:1px; --barw:4px; --frame:0;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --nfont:var(--font); --nfs:15.5px;
  --r:9px;
  --sh:0 1px 2px rgba(0,0,0,.05),0 4px 12px rgba(0,0,0,.05);
  --sh-lift:0 10px 28px rgba(0,0,0,.16);
  --bar-h:58px;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overscroll-behavior:none}
body{
  font-family:var(--font); color:var(--text); background:var(--bg);
  overflow:hidden; -webkit-font-smoothing:antialiased; -webkit-tap-highlight-color:transparent;
}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.i{width:18px;height:18px;flex:none;display:block}

/* ================= top bar ================= */
.bar{
  position:fixed;top:0;left:0;right:0;height:var(--bar-h);z-index:40;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:0 14px 0 18px;
  padding-top:env(safe-area-inset-top,0);
  background:var(--panel); border-bottom:1px solid var(--panel-bd);
}
.brand{display:flex;align-items:center;gap:9px;font-weight:680;font-size:16px;letter-spacing:-.015em;flex:none}
.brand .i{width:21px;height:21px;color:var(--accent)}

.tools{display:flex;align-items:center;gap:5px;flex-wrap:nowrap;min-width:0}
.sep{width:1px;height:22px;background:var(--border);margin:0 4px;flex:none}

.btn{
  font:inherit;font-size:13.5px;font-weight:550;letter-spacing:-.005em;
  color:var(--text);background:transparent;
  border:1px solid var(--border);border-radius:var(--r);
  height:36px;padding:0 11px;
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  cursor:pointer;user-select:none;white-space:nowrap;flex:none;
  transition:background .13s,border-color .13s,color .13s,opacity .13s;
}
.btn .i{color:var(--muted);transition:color .13s}
.btn:hover{background:var(--hover)}
.btn:hover .i{color:var(--text)}
.btn:active{transform:translateY(.5px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn[disabled]{opacity:.34;pointer-events:none}
.btn.ic{width:36px;padding:0}
.btn .ch{width:14px;height:14px;margin-left:-2px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ct)}
.btn.primary .i{color:var(--accent-ct)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.zoomval{min-width:62px;font-variant-numeric:tabular-nums;color:var(--muted);font-size:13px}
.btn.on{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.on .i{color:#fff}
.fitonly{display:none}

/* ================= menus ================= */
.mw{position:relative;flex:none}
.menu{
  position:absolute;top:calc(100% + 8px);right:0;z-index:60;
  min-width:238px;padding:6px;
  background:var(--panel);border:1px solid var(--panel-bd);border-radius:12px;
  box-shadow:0 4px 10px rgba(0,0,0,.06),0 16px 40px rgba(0,0,0,.14);
  display:none;
}
.mw.open .menu{display:block;animation:pop .13s ease}
@keyframes pop{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.mt{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:8px 10px 6px}
.mi{
  font:inherit;font-size:14px;font-weight:520;color:var(--text);
  width:100%;min-height:42px;padding:8px 10px;
  display:flex;align-items:center;gap:10px;
  background:transparent;border:0;border-radius:8px;cursor:pointer;text-align:left;
}
.mi .i{color:var(--muted)}
.mi:hover{background:var(--hover)}
.mi em{font-style:normal;font-size:12px;color:var(--muted);margin-left:auto;padding-left:10px;white-space:nowrap}
.mi.danger{color:var(--danger)}
.mi.danger .i{color:var(--danger)}
.mi.danger:hover{background:var(--danger-soft)}
.mdiv{height:1px;background:var(--border);margin:5px 6px}
.mi .tick{margin-left:auto;color:var(--accent);opacity:0}
.mi.sel .tick{opacity:1}
.sw{width:22px;height:22px;border-radius:6px;flex:none;border:1px solid rgba(0,0,0,.14)}
.sw-light{background:linear-gradient(135deg,#FFF 50%,#2783DE 50%)}
.sw-dark{background:linear-gradient(135deg,#191919 50%,#5E9FE8 50%)}
.sw-sharq{background:linear-gradient(135deg,#F5E9CE 50%,#A9482B 50%)}
.sw-nur{background:linear-gradient(135deg,#0E2A25 50%,#D9B45B 50%)}

/* ================= stage ================= */
#stage{
  position:fixed;inset:var(--bar-h) 0 0 0;
  overflow:hidden;background-color:var(--bg);
  cursor:grab;touch-action:none;
}
#stage.panning{cursor:grabbing}
body.erase #stage{cursor:crosshair}
#world{position:absolute;top:0;left:0;transform-origin:0 0;will-change:transform}
#wires{position:absolute;top:0;left:0;overflow:visible;pointer-events:none}
#layer{position:absolute;top:0;left:0}

/* тақырыпқа қарай фон өрнегі */
body[data-theme="light"] #stage,
body[data-theme="dark"]  #stage,
body[data-theme="nur"]   #stage{
  background-image:radial-gradient(circle at 1px 1px,var(--grid) 1.4px,transparent 0);
  background-size:var(--grid-size) var(--grid-size);
}
body[data-theme="sharq"] #stage{
  background-image:
    repeating-linear-gradient(45deg,var(--grid) 0 1px,transparent 1px 22px),
    repeating-linear-gradient(-45deg,var(--grid) 0 1px,transparent 1px 22px);
}

/* ================= node ================= */
.node{
  position:absolute;width:210px;height:62px;
  background:var(--nf);
  border:var(--nbw) solid var(--nb);
  border-radius:var(--nrad);
  box-shadow:var(--sh);
  display:flex;align-items:center;justify-content:center;
  padding:8px 16px;
  cursor:grab;
  transition:box-shadow .15s,border-color .15s,transform .12s;
}
/* сол жақтағы түсті жолақ (light/dark) */
.node::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:var(--barw);
  border-radius:0 3px 3px 0;background:var(--c);
}
/* ішкі қос жактау (Шығыс / Нұр) */
.node::after{
  content:"";position:absolute;inset:3px;pointer-events:none;
  border:1px solid var(--c);border-radius:calc(var(--nrad) - 3px);
  opacity:calc(var(--frame) * .34);
}
.node:hover{box-shadow:0 1px 2px rgba(0,0,0,.06),0 8px 22px rgba(0,0,0,.09)}
.node.sel{border-color:var(--c);box-shadow:0 0 0 3px var(--cs),var(--sh)}
.node.lift{cursor:grabbing;box-shadow:var(--sh-lift);transform:scale(1.045);z-index:30}
.node.side{border-style:dashed}

.name{
  font-family:var(--nfont);font-size:var(--nfs);font-weight:620;line-height:19px;
  letter-spacing:-.005em;color:var(--text);text-align:center;
  width:100%;outline:none;word-break:break-word;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.name:empty::before{content:"Аты-жөні";color:var(--muted);font-weight:500;opacity:.75}
.name[contenteditable="true"]{cursor:text;-webkit-user-select:text;user-select:text}

/* порттар */
.in{
  position:absolute;top:-6px;left:50%;transform:translateX(-50%);
  width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2.5px solid var(--c);
}
.plus{
  position:absolute;width:24px;height:24px;padding:0;
  border-radius:50%;border:1.5px solid var(--nb);
  background:var(--panel);color:var(--c);
  font:700 16px/1 var(--font);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:1;
  box-shadow:0 1px 4px rgba(0,0,0,.12);
  transition:background .13s,color .13s,transform .13s,border-color .13s;
  touch-action:none;
}
.plus::after{content:"";position:absolute;inset:-11px} /* үлкен сенсорлық аумақ */
.plus:hover{background:var(--c);border-color:var(--c);color:#fff;transform:scale(1.14)}
.plus:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.plus.b{bottom:-12px;left:50%;margin-left:-12px}
.plus.l{left:-12px;top:50%;margin-top:-12px}
.plus.r{right:-12px;top:50%;margin-top:-12px}

.del{
  position:absolute;top:-11px;right:-11px;
  width:24px;height:24px;border-radius:50%;
  border:1.5px solid var(--nb);background:var(--panel);color:var(--muted);
  font:700 15px/1 var(--font);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;transition:opacity .13s,background .13s,color .13s,border-color .13s;
  box-shadow:0 1px 4px rgba(0,0,0,.12);touch-action:none;
}
.del::after{content:"";position:absolute;inset:-11px}
.node:hover .del,.node.sel .del,.del:focus-visible{opacity:1}
.del:hover{background:var(--danger);border-color:var(--danger);color:#fff}

/* өшіру режимі */
body.erase .node{cursor:crosshair}
body.erase .node:hover{border-color:var(--danger);box-shadow:0 0 0 3px var(--danger-soft)}
body.erase .plus,body.erase .del{display:none}
#wires .hit{pointer-events:none;stroke:transparent;fill:none;stroke-width:20}
body.erase #wires .hit{pointer-events:stroke;cursor:pointer}
body.erase #wires .hit:hover + .ln{stroke:var(--danger);stroke-width:3.4}

/* ================= overlays ================= */
.hint{
  position:absolute;left:50%;bottom:18px;transform:translateX(-50%);
  display:flex;gap:14px;align-items:center;
  font-size:12.5px;color:var(--muted);
  background:var(--panel);border:1px solid var(--panel-bd);border-radius:999px;
  padding:8px 16px;white-space:nowrap;pointer-events:none;
  box-shadow:var(--sh);max-width:calc(100vw - 24px);overflow:hidden;
}
.hint kbd{
  font:inherit;font-size:11.5px;font-weight:650;color:var(--text);
  background:var(--hover);border:1px solid var(--border);border-radius:5px;padding:2px 6px;margin-right:4px;
}
.hint .mob{display:none}

.erasebar{
  position:absolute;left:50%;top:16px;transform:translateX(-50%);
  display:none;align-items:center;gap:10px;
  background:var(--danger);color:#fff;border-radius:999px;
  padding:8px 8px 8px 16px;font-size:13px;font-weight:560;
  box-shadow:0 8px 24px rgba(0,0,0,.2);z-index:20;max-width:calc(100vw - 24px);
}
body.erase .erasebar{display:flex}
body.erase .hint{display:none}
.erasebar .i{color:#fff}
.erasebar span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.eb{
  font:inherit;font-size:12.5px;font-weight:650;color:var(--danger);
  background:#fff;border:0;border-radius:999px;padding:7px 14px;cursor:pointer;flex:none;
}

.toast{
  position:absolute;left:50%;bottom:74px;transform:translate(-50%,10px);
  background:var(--text);color:var(--bg);
  font-size:13.5px;font-weight:550;padding:11px 18px;border-radius:10px;
  box-shadow:0 10px 30px rgba(0,0,0,.22);
  opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50;
  max-width:calc(100vw - 32px);text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ================= responsive ================= */
@media (max-width:1180px){
  .btn .lb{display:none}
  .btn{padding:0 9px}
  .btn .ch{margin-left:0}
}
@media (max-width:900px){
  .zoomgrp{display:none}
  .fitonly{display:inline-flex}
}
@media (max-width:640px){
  :root{--bar-h:54px}
  .brand span{display:none}
  .bar{padding:0 8px 0 10px;gap:6px}
  .tools{gap:2px}
  .sep{margin:0 1px}
  .btn .ch{display:none}
  .btn{height:38px;padding:0 8px}
  .btn.ic{width:36px}
  .btn:not(.ic){padding:0 9px}
  .menu{min-width:min(88vw,270px)}
  .hint .desk{display:none}
  .hint .mob{display:inline}
  .hint{gap:10px;font-size:12px;padding:7px 13px;bottom:calc(14px + env(safe-area-inset-bottom,0px))}
}
@media (max-width:420px){
  .hint span:first-child{display:none}
}
/* телефонда көлденең ұстағанда — кенепке орын береміз */
@media (max-height:520px) and (orientation:landscape){
  :root{--bar-h:48px}
  .hint{display:none}
  .btn{height:34px}
  .btn.ic{width:34px}
}
@media (hover:none){
  .node .del{opacity:1}
  .plus{width:26px;height:26px}
  .plus.b{bottom:-13px;margin-left:-13px}
  .plus.l{left:-13px;margin-top:-13px}
  .plus.r{right:-13px;margin-top:-13px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}