/* Escalera BDM — Visor de propuestas
   NewApps · Leandro Marquez */

:root{
  --bg:#0a0d12;
  --bg-2:#0f141b;
  --panel:rgba(18,24,33,.82);
  --panel-solid:#121821;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --txt:#e7ecf3;
  --txt-2:#9aa7b8;
  --txt-3:#65717f;
  --accent:#f0a02a;
  --accent-2:#ffbe55;
  --accent-dim:rgba(240,160,42,.14);
  --steel:#5d8bb8;
  --ok:#4ade80;
  --danger:#f87171;
  --r:10px;
  --r-sm:7px;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --panel-w:336px;
  --shadow:0 18px 50px -12px rgba(0,0,0,.7);
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--txt);
  font-family:var(--sans); font-size:13.5px; line-height:1.5;
  -webkit-font-smoothing:antialiased; overflow:hidden;
  overscroll-behavior:none;
}
button,input,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:6px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.2);background-clip:content-box}

/* ---------- Shell ---------- */
#app{position:fixed;inset:0;display:flex;flex-direction:column}

#topbar{
  position:relative;z-index:30;display:flex;align-items:center;gap:14px;
  height:54px;padding:0 14px;flex:0 0 auto;
  background:linear-gradient(180deg,rgba(12,16,22,.96),rgba(12,16,22,.86));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:28px;height:28px;flex:0 0 auto;border-radius:7px;
  background:linear-gradient(145deg,var(--accent),#c97b10);
  display:grid;place-items:center;box-shadow:0 2px 10px rgba(240,160,42,.3)
}
.brand-mark svg{width:16px;height:16px;display:block}
.brand-txt{min-width:0}
.brand-txt h1{
  margin:0;font-size:13px;font-weight:600;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis
}
.brand-txt p{margin:0;font-size:10.5px;color:var(--txt-3);letter-spacing:.04em;text-transform:uppercase}

.spacer{flex:1 1 auto}

/* Segmented proposal switcher */
.segmented{
  display:flex;gap:3px;padding:3px;border-radius:var(--r);
  background:rgba(0,0,0,.35);border:1px solid var(--line);
}
.segmented button{
  padding:6px 14px;border-radius:7px;font-size:12.5px;font-weight:500;
  color:var(--txt-2);transition:all .16s ease;white-space:nowrap;position:relative
}
.segmented button:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.segmented button[aria-pressed="true"]{
  background:var(--accent);color:#1a1205;font-weight:600;
  box-shadow:0 2px 8px rgba(240,160,42,.28)
}
.segmented button .sub{display:block;font-size:9.5px;opacity:.75;font-weight:400;letter-spacing:.02em}

.icon-btn{
  width:34px;height:34px;border-radius:var(--r-sm);display:grid;place-items:center;
  color:var(--txt-2);border:1px solid transparent;transition:all .15s ease
}
.icon-btn:hover{background:rgba(255,255,255,.07);color:var(--txt);border-color:var(--line)}
.icon-btn.active{background:var(--accent-dim);color:var(--accent-2);border-color:rgba(240,160,42,.3)}
.icon-btn svg{width:17px;height:17px;display:block}
#menu-toggle{display:none}

/* ---------- Body ---------- */
#body{flex:1 1 auto;position:relative;display:flex;min-height:0}

#panel{
  width:var(--panel-w);flex:0 0 var(--panel-w);display:flex;flex-direction:column;
  background:var(--panel);backdrop-filter:blur(18px);
  border-right:1px solid var(--line);z-index:20;min-height:0;
  transition:margin-left .28s cubic-bezier(.4,0,.2,1)
}
#panel.collapsed{margin-left:calc(var(--panel-w) * -1)}

.tabs{display:flex;gap:2px;padding:9px 9px 0;flex:0 0 auto;border-bottom:1px solid var(--line)}
.tabs button{
  flex:1;padding:8px 4px 9px;font-size:11.5px;font-weight:500;color:var(--txt-3);
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .15s ease;
  display:flex;flex-direction:column;align-items:center;gap:4px
}
.tabs button svg{width:15px;height:15px}
.tabs button:hover{color:var(--txt-2)}
.tabs button[aria-selected="true"]{color:var(--accent-2);border-bottom-color:var(--accent)}

.tabpanes{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;min-height:0}
.tabpane{display:none;padding:12px 12px 26px}
.tabpane.active{display:block}

.section{margin-bottom:16px}
.section-hd{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:0 2px 7px;font-size:10.5px;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;color:var(--txt-3)
}
.section-hd .mini{font-family:var(--mono);font-size:10px;letter-spacing:0;text-transform:none;color:var(--txt-3)}

/* ---------- Tree ---------- */
.tree-tools{display:flex;gap:6px;margin-bottom:9px}
.tbtn{
  flex:1;padding:7px 8px;border-radius:var(--r-sm);font-size:11.5px;font-weight:500;
  background:rgba(255,255,255,.045);border:1px solid var(--line);color:var(--txt-2);
  transition:all .15s ease;display:flex;align-items:center;justify-content:center;gap:5px
}
.tbtn:hover{background:rgba(255,255,255,.09);color:var(--txt);border-color:var(--line-2)}
.tbtn svg{width:13px;height:13px}

.search{position:relative;margin-bottom:10px}
.search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:14px;height:14px;color:var(--txt-3);pointer-events:none}
.search input{
  width:100%;padding:8px 10px 8px 31px;border-radius:var(--r-sm);
  background:rgba(0,0,0,.3);border:1px solid var(--line);outline:none;font-size:12.5px;
  transition:border-color .15s ease
}
.search input:focus{border-color:rgba(240,160,42,.45)}
.search input::placeholder{color:var(--txt-3)}

.cat{margin-bottom:5px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(0,0,0,.18)}
.cat-hd{
  display:flex;align-items:center;gap:8px;padding:8px 9px;width:100%;
  transition:background .15s ease;text-align:left
}
.cat-hd:hover{background:rgba(255,255,255,.04)}
.cat-dot{width:8px;height:8px;border-radius:3px;flex:0 0 auto}
.cat-name{flex:1;font-size:12.5px;font-weight:600;letter-spacing:-.005em;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-count{font-family:var(--mono);font-size:10px;color:var(--txt-3);flex:0 0 auto}
.chev{width:13px;height:13px;color:var(--txt-3);transition:transform .2s ease;flex:0 0 auto}
.cat.open .chev{transform:rotate(90deg)}
.cat-body{display:none;padding:2px 6px 7px;border-top:1px solid var(--line)}
.cat.open .cat-body{display:block}

.row{display:flex;align-items:center;gap:7px;padding:5px 4px;border-radius:6px;transition:background .13s ease}
.row:hover{background:rgba(255,255,255,.05)}
.row.hidden-piece .row-name{opacity:.38;text-decoration:line-through}
.row-name{flex:1;font-size:12px;color:var(--txt-2);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer}
.row:hover .row-name{color:var(--txt)}
.row-count{font-family:var(--mono);font-size:9.5px;color:var(--txt-3);flex:0 0 auto}

.eye{width:24px;height:24px;border-radius:5px;display:grid;place-items:center;color:var(--txt-3);flex:0 0 auto;transition:all .13s ease}
.eye:hover{background:rgba(255,255,255,.08);color:var(--txt)}
.eye svg{width:14px;height:14px}
.eye.off{color:var(--txt-3);opacity:.5}

.swatch{
  width:20px;height:20px;border-radius:5px;flex:0 0 auto;padding:0;overflow:hidden;
  border:1px solid var(--line-2);position:relative;cursor:pointer;
  background-image:linear-gradient(45deg,#2a3038 25%,transparent 25%,transparent 75%,#2a3038 75%),
                   linear-gradient(45deg,#2a3038 25%,transparent 25%,transparent 75%,#2a3038 75%);
  background-size:8px 8px;background-position:0 0,4px 4px
}
.swatch i{position:absolute;inset:0;display:block;border-radius:4px}
.swatch input{position:absolute;inset:0;opacity:0;cursor:pointer;border:0;padding:0}
.solo{width:24px;height:24px;border-radius:5px;display:grid;place-items:center;color:var(--txt-3);flex:0 0 auto;transition:all .13s ease;font-size:9px;font-weight:700;font-family:var(--mono)}
.solo:hover{background:rgba(255,255,255,.08);color:var(--accent-2)}
.solo.on{background:var(--accent-dim);color:var(--accent-2)}

.empty{padding:22px 10px;text-align:center;color:var(--txt-3);font-size:12px}

/* ---------- Controls ---------- */
.field{margin-bottom:12px}
.field-lbl{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px;font-size:11.5px;color:var(--txt-2)}
.field-val{font-family:var(--mono);font-size:10.5px;color:var(--accent-2)}

input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:3px;
  background:rgba(255,255,255,.12);outline:none;cursor:pointer
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:14px;height:14px;border-radius:50%;
  background:var(--accent);cursor:pointer;border:2px solid #14191f;
  box-shadow:0 1px 5px rgba(0,0,0,.5);transition:transform .12s ease
}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.18)}
input[type=range]::-moz-range-thumb{
  width:14px;height:14px;border-radius:50%;background:var(--accent);
  cursor:pointer;border:2px solid #14191f
}

.chips{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}
.chip{
  padding:8px 9px;border-radius:var(--r-sm);font-size:11.5px;font-weight:500;
  background:rgba(255,255,255,.045);border:1px solid var(--line);color:var(--txt-2);
  transition:all .15s ease;text-align:left;display:flex;align-items:center;gap:7px
}
.chip:hover{background:rgba(255,255,255,.09);color:var(--txt);border-color:var(--line-2)}
.chip[aria-pressed="true"]{background:var(--accent-dim);border-color:rgba(240,160,42,.38);color:var(--accent-2)}
.chip .sw{width:13px;height:13px;border-radius:4px;flex:0 0 auto;border:1px solid rgba(0,0,0,.35)}
.chip svg{width:14px;height:14px;flex:0 0 auto}

.toggle-row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 10px;border-radius:var(--r-sm);background:rgba(255,255,255,.035);
  border:1px solid var(--line);margin-bottom:6px
}
.toggle-row span{font-size:12px;color:var(--txt-2)}
.switch{position:relative;width:34px;height:19px;border-radius:11px;background:rgba(255,255,255,.14);transition:background .18s ease;flex:0 0 auto}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;background:#e7ecf3;transition:transform .18s cubic-bezier(.4,0,.2,1)}
.switch[aria-pressed="true"]{background:var(--accent)}
.switch[aria-pressed="true"]::after{transform:translateX(15px)}

.seg-mini{display:flex;gap:3px;padding:3px;border-radius:var(--r-sm);background:rgba(0,0,0,.3);border:1px solid var(--line)}
.seg-mini button{flex:1;padding:5px 6px;border-radius:5px;font-size:11px;font-weight:500;color:var(--txt-3);transition:all .14s ease}
.seg-mini button:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.seg-mini button[aria-pressed="true"]{background:var(--accent);color:#1a1205;font-weight:600}

.note{font-size:10.5px;color:var(--txt-3);line-height:1.45;margin:6px 2px 0}

/* ---------- Viewport ---------- */
#viewport{flex:1 1 auto;position:relative;min-width:0;background:#070a0e}
#viewport canvas{display:block;width:100%;height:100%;touch-action:none}

#hud{
  position:absolute;left:14px;bottom:14px;z-index:10;display:flex;gap:7px;
  pointer-events:none;flex-wrap:wrap;max-width:calc(100% - 28px)
}
.hud-chip{
  display:flex;align-items:center;gap:6px;padding:5px 9px;border-radius:7px;
  background:rgba(10,14,19,.78);border:1px solid var(--line);
  backdrop-filter:blur(10px);font-family:var(--mono);font-size:10.5px;color:var(--txt-2)
}
.hud-chip b{color:var(--txt);font-weight:500}
.hud-chip .dot{width:6px;height:6px;border-radius:2px;background:var(--accent)}

#tools{
  position:absolute;right:14px;bottom:14px;z-index:10;display:flex;flex-direction:column;gap:6px
}
#tools .icon-btn{
  background:rgba(10,14,19,.78);border:1px solid var(--line);backdrop-filter:blur(10px);
  width:36px;height:36px
}
#tools .icon-btn:hover{background:rgba(26,34,45,.9);border-color:var(--line-2)}

#tip{
  position:absolute;left:50%;top:14px;transform:translateX(-50%);z-index:10;
  padding:6px 12px;border-radius:20px;background:rgba(10,14,19,.82);
  border:1px solid var(--line);backdrop-filter:blur(10px);
  font-size:11.5px;color:var(--txt-2);pointer-events:none;white-space:nowrap;
  opacity:0;transition:opacity .35s ease
}
#tip.show{opacity:1}

#hover-label{
  position:absolute;z-index:11;padding:4px 9px;border-radius:6px;
  background:rgba(240,160,42,.95);color:#14100a;font-size:11px;font-weight:600;
  pointer-events:none;opacity:0;transition:opacity .12s ease;white-space:nowrap;
  transform:translate(-50%,-140%);box-shadow:0 4px 14px rgba(0,0,0,.4)
}
#hover-label.show{opacity:1}

/* ---------- Loader ---------- */
#loader{
  position:absolute;inset:0;z-index:40;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;
  background:radial-gradient(ellipse at 50% 45%,#141b25 0%,#080b10 70%);
  transition:opacity .45s ease,visibility .45s ease
}
#loader.done{opacity:0;visibility:hidden}
.loader-mark{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(145deg,var(--accent),#b86f0c);
  display:grid;place-items:center;box-shadow:0 6px 26px rgba(240,160,42,.32);
  animation:breathe 2.4s ease-in-out infinite
}
.loader-mark svg{width:26px;height:26px}
@keyframes breathe{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.93);opacity:.82}}
.loader-txt{font-size:12.5px;color:var(--txt-2);letter-spacing:.02em}
.loader-bar{width:210px;height:3px;border-radius:2px;background:rgba(255,255,255,.1);overflow:hidden}
.loader-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:2px;transition:width .2s ease}
.loader-pct{font-family:var(--mono);font-size:11px;color:var(--txt-3)}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  :root{--panel-w:300px}
  #menu-toggle{display:grid}
  #panel{
    position:absolute;inset:0 auto 0 0;height:100%;box-shadow:var(--shadow);
    background:rgba(13,18,25,.96)
  }
  #panel.collapsed{margin-left:calc(var(--panel-w) * -1)}
  .brand-txt p{display:none}
  .segmented button{padding:6px 10px;font-size:12px}
  .segmented button .sub{display:none}
  #hud{bottom:10px;left:10px}
  #tools{bottom:10px;right:10px}
}
@media (max-width:560px){
  #topbar{height:50px;padding:0 9px;gap:8px}
  .brand-txt h1{font-size:12px;max-width:110px}
  .hud-chip:nth-child(n+3){display:none}
}

/* retoques finales */
.cat-hd{cursor:pointer;user-select:none;width:100%}
.hud-chip{max-width:min(48vw,330px);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.row-name{user-select:none}
#viewport:fullscreen{background:#070a0e}