*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--belk-level-1,#CDD8EA);color:var(--belk-text,#0D2350);min-height:100vh;font-size:14px;line-height:1.5;
  padding-bottom:32px}

/* ── HEADER ── */
/* El header (.hdr y sus hijos) vive en css/belk-shell.css — A7 */

/* ── NAV MENU ── */
.nav-ov{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:490;
  opacity:0;pointer-events:none;transition:opacity .25s}
.nav-ov.open{opacity:1;pointer-events:all}
.nav-menu{position:fixed;top:0;left:0;bottom:0;width:280px;background:var(--belk-brand,#143A7D);color:var(--belk-on-brand,#FFFFFF);
  z-index:500;display:flex;flex-direction:column;
  transform:translateX(-100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  box-shadow:4px 0 24px rgba(0,0,0,.35)}
.nav-menu.open{transform:translateX(0)}
.nav-hd{display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.12);flex-shrink:0}
.nav-close{background:rgba(255,255,255,.1);border:none;color:#fff;
  width:32px;height:32px;border-radius:7px;cursor:pointer;font-size:15px;
  display:flex;align-items:center;justify-content:center;transition:background .15s}
.nav-close:hover{background:rgba(255,255,255,.2)}
.nav-body{flex:1;overflow-y:auto;padding:8px 0}
.nav-section{padding:8px 0}
.nav-section+.nav-section{border-top:1px solid rgba(255,255,255,.08)}
.nav-section-title{font-size:9px;font-weight:800;letter-spacing:.9px;
  color:rgba(255,255,255,.66);text-transform:uppercase;padding:6px 18px 4px}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 18px;
  background:none;border:none;color:rgba(255,255,255,.88);font-size:13px;
  font-weight:500;cursor:pointer;transition:background .12s;text-align:left;
  border-radius:0;font-family:inherit;text-decoration:none}
.nav-item:hover{background:rgba(255,255,255,.1);color:#fff}
.nav-item .ni-icon{font-size:15px;width:20px;text-align:center;flex-shrink:0}
.ni-icon svg{width:16px;height:16px;display:block;margin:0 auto;fill:currentColor}
.nav-signout svg{width:14px;height:14px;flex-shrink:0;fill:currentColor}
.nav-item-active{background:rgba(255,255,255,.15);color:#fff;font-weight:700}
.nav-item-active:hover{background:rgba(255,255,255,.2)}
.nav-footer{border-top:1px solid rgba(255,255,255,.12);padding:12px 16px;flex-shrink:0}
.nav-user{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.nav-user-avatar{width:36px;height:36px;border-radius:50%;background:var(--belk-accent,#E87722);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  flex-shrink:0;overflow:hidden;border:2px solid rgba(255,255,255,.2)}
.nav-user-avatar img{width:100%;height:100%;object-fit:cover}
.nav-user-name{font-size:13px;font-weight:700;color:#fff;line-height:1.2}
.nav-user-email{font-size:10px;color:rgba(255,255,255,.5);margin-top:1px}
.nav-signout{display:flex;align-items:center;gap:8px;width:100%;padding:8px 12px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.7);font-size:12px;font-weight:500;cursor:pointer;
  border-radius:8px;transition:all .15s;font-family:inherit}
.nav-signout:hover{background:rgba(255,255,255,.14);color:#fff}

/* ── LAYOUT ── */
.wrap{max-width:860px;margin:0 auto;padding:14px 12px;display:flex;flex-direction:column;gap:12px}
@media(min-width:1024px){
  .wrap{max-width:1280px}
  .wrap:has(#resultCard:not([style*="none"])){
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(320px,.9fr);
    align-items:start;
  }
  .wrap:has(#resultCard:not([style*="none"])) .print-only{grid-column:1/-1}
  .wrap:has(#resultCard:not([style*="none"])) #configSec,
  .wrap:has(#resultCard:not([style*="none"])) #piecesSec{grid-column:1}
  .wrap:has(#resultCard:not([style*="none"])) #resultCard{
    grid-column:2; grid-row:2 / span 3;
    position:sticky; top:64px;
  }
}

/* ── SECTIONS (same as index.html) ── */
.sec{background:var(--belk-level-3,#FFFFFF);border:1px solid var(--belk-border-strong,rgba(13,35,80,.18));border-radius:var(--belk-radius-sm,8px);
  box-shadow:var(--belk-shadow-1,0 2px 8px rgba(13,35,80,.08));overflow:hidden}
.sec-hd{padding:9px 13px;background:var(--belk-level-1,#CDD8EA);display:flex;align-items:center;
  justify-content:space-between;cursor:pointer;user-select:none;border-bottom:1px solid var(--belk-border-strong,rgba(13,35,80,.18))}
.sec-hd.nocoll{cursor:default}
.sec-ti{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;
  color:var(--belk-brand,#143A7D);display:flex;align-items:center;gap:5px}
.sec-ar{color:var(--belk-text-muted,#414B5C);font-size:11px;transition:transform .2s}
.sec-hd.coll .sec-ar{transform:rotate(-90deg)}
.sec-hd.coll+.sec-bd{display:none}
.sec-bd{padding:12px 13px}

/* ── FORMS ── */
.fg{display:flex;flex-direction:column;gap:3px;margin-bottom:8px}
.fg:last-child{margin-bottom:0}
.fg label{font-size:10px;font-weight:700;color:var(--belk-text-muted,#414B5C);text-transform:uppercase;letter-spacing:.4px}
input[type="number"],input[type="text"],select{
  width:100%;padding:6px 9px;border:1.5px solid var(--belk-border-strong,rgba(13,35,80,.18));border-radius:6px;
  font-size:13px;color:var(--belk-text,#0D2350);background:var(--belk-level-3,#FFFFFF);outline:none;
  transition:border-color .15s;font-family:inherit}
input:focus,select:focus{border-color:var(--belk-link,#2C5AA8);box-shadow:0 0 0 3px rgba(46,95,163,.12)}
.fr2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.fr3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
@media(max-width:560px){.fr2,.fr3{grid-template-columns:1fr 1fr}}
@media(max-width:380px){.fr2,.fr3{grid-template-columns:1fr}}

/* ── SELECTORES DE CONFIGURACIÓN (fuente / modo) ──
   `.opt-card` ELIMINADO (usuario 2026-07-29: "muy grandes, desproporcionados al
   estilo general"). Eran tarjetas propias de ~52 px de alto — el doble que
   cualquier botón de la app — con emoji en bloque y subtítulo. Ahora son botones
   del sistema único (`.belk-btn--sm`) y el elegido usa la variante de acento,
   que ya trae su contraste medido. El emoji va inline en la etiqueta. */
.opt-row{display:flex;flex-wrap:wrap;gap:6px}
.cfg-lbl{font-size:10px;font-weight:700;color:var(--belk-text-muted,#414B5C);
  text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;
  padding:6px 11px;border-radius:6px;font-size:12px;font-weight:500;
  cursor:pointer;border:none;transition:all .15s;white-space:nowrap;font-family:inherit}

/* ── PIECES — DESKTOP TABLE ── */
.pz-wrap{overflow-x:auto}
.pz-table{width:100%;border-collapse:separate;border-spacing:0 5px;min-width:620px}
.pz-table thead th{font-size:9px;color:var(--belk-text-muted,#414B5C);text-transform:uppercase;
  letter-spacing:.06em;font-weight:700;padding:4px 8px;text-align:left}
.pz-table thead th.center{text-align:center}
.pz-table tbody tr{background:var(--belk-level-1,#CDD8EA);border-radius:8px}
.pz-table tbody td{padding:6px 6px;
  border-top:1px solid var(--belk-border-strong,rgba(13,35,80,.18));border-bottom:1px solid var(--belk-border-strong,rgba(13,35,80,.18));vertical-align:middle}
.pz-table tbody td:first-child{border-left:1px solid var(--belk-border-strong,rgba(13,35,80,.18));border-radius:6px 0 0 6px;padding-left:8px}
.pz-table tbody td:last-child{border-right:1px solid var(--belk-border-strong,rgba(13,35,80,.18));border-radius:0 6px 6px 0;padding-right:6px}
.pz-table input[type="text"],.pz-table input[type="number"]{
  background:var(--belk-level-3,#FFFFFF);border:1.5px solid var(--belk-border-strong,rgba(13,35,80,.18));color:var(--belk-text,#0D2350);
  padding:4px 6px;border-radius:5px;font-size:12px;width:100%}
.pz-table input[type="number"]{text-align:center}
.pz-table input:focus{border-color:var(--belk-link,#2C5AA8)}
.tot-cell{font-weight:700;color:var(--belk-ok,#275A42);text-align:right;white-space:nowrap;font-size:.88rem}
.del-btn{background:none;border:none;color:var(--belk-text-muted,#414B5C);cursor:pointer;font-size:14px;
  padding:3px 6px;border-radius:5px;transition:.15s;display:flex;align-items:center}
.del-btn:hover{color:var(--belk-err,#8E3B31);background:var(--belk-err-soft,#F8E7E3)}

/* ── CANTO BUTTONS ── */
.canto-cell{text-align:center;white-space:nowrap}

/* ── DIAGRAMA DE BORDES (auditoría UX M16) ──
   La pieza vista de frente: arriba/abajo son los largos, izquierda/derecha los anchos.
   Reemplaza los chips L1/L2/A1/A2, que no decían qué borde era cuál. */
.edge-dg{position:relative;width:64px;height:44px;margin:0 auto;display:block}
.eg-body{position:absolute;inset:7px;border-radius:3px;
  background:var(--belk-level-1,#CDD8EA);border:1px solid var(--belk-border,rgba(13,35,80,.10));
  display:flex;align-items:center;justify-content:center;
  font-size:.66rem;font-weight:800;color:var(--belk-text-muted,#414B5C);pointer-events:none}
.eg-body-sub{font-weight:600;opacity:.55}
.edge-dg .eg{position:absolute;background:none;border:0;padding:0;cursor:pointer;
  font:inherit;-webkit-tap-highlight-color:transparent}
.edge-dg .eg::after{content:'';position:absolute;inset:0;margin:auto;border-radius:2px;
  background:var(--belk-border-strong,rgba(13,35,80,.18));transition:background .12s}
.edge-dg .eg.on::after{background:var(--belk-ok,#275A42)}
.edge-dg .eg:hover::after{background:var(--belk-link,#2C5AA8)}
.edge-dg .eg:focus-visible{outline:2px solid var(--belk-link,#2C5AA8);outline-offset:1px;border-radius:3px}
/* Largos: barras horizontales arriba y abajo */
.eg-l1,.eg-l2{left:5px;right:5px;height:14px}
.eg-l1{top:0}.eg-l2{bottom:0}
.eg-l1::after,.eg-l2::after{width:100%;height:5px}
/* Anchos: barras verticales a los costados */
.eg-a1,.eg-a2{top:5px;bottom:5px;width:14px}
.eg-a2{left:0}.eg-a1{right:0}
.eg-a1::after,.eg-a2::after{height:100%;width:5px}
/* Leyenda: se explica una vez en el encabezado, no en cada fila */
.canto-hint{display:block;font-size:.62rem;font-weight:500;text-transform:none;
  letter-spacing:0;opacity:.7;margin-top:2px}
.canto-help{background:none;border:0;cursor:pointer;padding:0 3px;color:var(--belk-link,#2C5AA8);display:inline-flex;align-items:center;vertical-align:middle}
.canto-help svg{width:14px;height:14px;display:block}

/* ── PIECES — MOBILE CARDS ── */
@media(max-width:640px){
  .pz-wrap{overflow-x:visible}
  .pz-table{display:none}
  .pz-cards{display:flex;flex-direction:column;gap:8px}
}
@media(min-width:641px){
  .pz-cards{display:none}
}
.pz-card{background:var(--belk-level-1,#CDD8EA);border:1.5px solid var(--belk-border-strong,rgba(13,35,80,.18));border-radius:8px;padding:10px}
.pz-card-row{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.pz-card-dims{display:grid;grid-template-columns:80px 1fr 1fr;gap:6px;margin-bottom:6px}
.pz-card-dims .fg{margin-bottom:0}
.pz-card-footer{display:flex;align-items:center;justify-content:space-between;gap:8px}
.pz-card-cantos{display:flex;gap:4px}
.pz-card-total{font-size:.82rem;font-weight:700;color:var(--belk-ok,#275A42)}

/* ── EMPTY STATE ── */
.empty{text-align:center;padding:28px 16px;color:var(--belk-text-muted,#414B5C)}
.empty-em{font-size:2.2rem;margin-bottom:8px}
.empty-tx{font-size:.88rem}
/* El estado vacío ya no pregunta de dónde salen las piezas (usuario 2026-07-29):
   lo dice. Las 3 tarjetas de fuente (.empty-src/.es-card) se eliminaron; elegir
   otra fuente es una excepción y vive en Configuración, no en la bienvenida. */
.empty-tx{font-size:1rem;font-weight:600;color:var(--belk-text,#0D2350)}
.empty-sub{font-size:.82rem;color:var(--belk-text-muted,#414B5C);
  margin:6px auto 16px;max-width:38ch;line-height:1.45}
.es-demo{margin-top:16px;background:none;border:none;cursor:pointer;font:inherit;
  font-size:.78rem;color:var(--belk-text-muted,#414B5C);text-decoration:underline;
  text-underline-offset:3px;display:inline-flex;align-items:center;gap:7px}
.es-demo:hover{color:var(--belk-brand,#143A7D)}
.es-demo-tag{background:var(--belk-warn,#B4731E);color:#fff;font-size:.6rem;
  font-weight:800;letter-spacing:.5px;text-transform:uppercase;
  padding:2px 6px;border-radius:4px;text-decoration:none}

/* ── RESULT BOXES ── */
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
@media(max-width:540px){.res-grid{grid-template-columns:1fr 1fr}}
.res-box{background:var(--belk-level-1,#CDD8EA);border:1px solid var(--belk-border-strong,rgba(13,35,80,.18));border-radius:8px;
  padding:12px 10px;text-align:center}
.res-v{font-size:1.3rem;font-weight:800;color:var(--belk-brand,#143A7D);display:block;line-height:1.2}
.res-l{font-size:.68rem;color:var(--belk-text-muted,#414B5C);text-transform:uppercase;
  letter-spacing:.06em;font-weight:600;margin-top:4px;display:block}
.res-box.ok .res-v{color:var(--belk-ok,#275A42)}
.res-box.accent .res-v{color:var(--belk-brand,#143A7D)}
.res-box.warn .res-v{color:var(--belk-warn,#9C4A12)}

/* ── NOTIF ── */
.notif-bar{position:fixed;bottom:var(--belk-float-bottom,20px);left:50%;transform:translateX(-50%) translateY(60px);
  background:var(--belk-ok,#275A42);color:#fff;padding:10px 18px;border-radius:8px;
  font-size:.84rem;font-weight:600;box-shadow:0 4px 18px rgba(0,0,0,.25);
  z-index:600;transition:.3s;opacity:0;pointer-events:none;white-space:nowrap;max-width:90vw}
.notif-bar.show{transform:translateX(-50%) translateY(0);opacity:1}
.notif-bar.err{background:var(--belk-err,#8E3B31)}

/* ── ACTIONS ROW ── */
.act-row{display:flex;gap:7px;flex-wrap:wrap}
/* ── Impresión (solo el documento) ── */
.print-only{display:none!important}

@media print{
  .hdr,
  .nav-ov,
  .nav-menu,
  #configSec,
  .act-row,
  .btn,
  #catalogRefBanner,
  #emptyState,
  .pz-cards,
  .notif-bar,
  #syncIndicator,
  .no-print{
    display:none!important;
  }

  .print-only{
    display:block!important;
  }

  body,
  .wrap{
    background:#fff!important;
    color:#111!important;
    padding:0!important;
    margin:0!important;
    max-width:100%!important;
  }

  .sec{
    box-shadow:none!important;
    border:1px solid #ddd!important;
    page-break-inside:avoid!important;
    background:#fff!important;
  }

  .pz-table th:last-child,
  .pz-table td:last-child{
    display:none!important;
  }

  .pz-table input[type="text"],
  .pz-table input[type="number"],
  .pz-table select{
    border:none!important;
    background:none!important;
    box-shadow:none!important;
    color:#111!important;
  }

  .res-grid .res-box{
    border:1px solid #ccc!important;
    background:#fff!important;
    color:#111!important;
  }
  .res-box .res-v,.res-box .res-l{color:#111!important}
}