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

:root {
    --primary:        #2563eb;
    --primary-hover:  #1d4ed8;
    --danger:         #dc2626;
    --danger-hover:   #b91c1c;
    --success:        #16a34a;
    --header-bg:      #0f172a;
    --body-bg:        #f1f5f9;
    --card-bg:        #ffffff;
    --text:           #1e293b;
    --text-muted:     #64748b;
    --border:         #e2e8f0;
    --shadow:         0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:      0 4px 8px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
    --shadow-lg:      0 10px 24px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);
    --radius:         8px;
    --radius-sm:      5px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--body-bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ───── HEADER ───── */
.app-header {
    background: var(--header-bg);
    color: #fff;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,.4);
    gap: 1rem;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-weight: 700;
    font-size: .975rem;
    white-space: nowrap;
    letter-spacing: -.01em;
}

.app-toolbar {
    display: flex;
    align-items: center;
    gap: .4rem;
    /* En ventanas medianas la barra ya no cabía y los últimos botones
       quedaban fuera de la pantalla, sin forma de alcanzarlos. Ahora se
       desplaza en horizontal; cuando cabe, se ve exactamente igual. */
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: thin;
}

.app-toolbar > * { flex: 0 0 auto; }

.toolbar-sep {
    width: 1px;
    height: 22px;
    background: rgba(255,255,255,.18);
    margin: 0 .35rem;
}

.page-info {
    font-size: .8rem;
    color: rgba(255,255,255,.5);
    min-width: 80px;
    text-align: right;
}

/* ───── BUTTONS ───── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .375rem;
    padding: .42rem .9rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s, opacity .15s, transform .1s;
    white-space: nowrap;
    line-height: 1;
}

.btn:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }

.btn-ghost {
    background: rgba(255,255,255,.10);
    color: #fff;
}
.btn-ghost:hover:not(:disabled) { background: rgba(255,255,255,.18); }

.btn-lg {
    padding: .7rem 1.6rem;
    font-size: .975rem;
    border-radius: var(--radius);
}

/* hidden file inputs */
#input-pdf, #input-add { display: none; }

/* ───── MAIN ───── */
#main-content {
    flex: 1;
    padding: 1.75rem;
}

/* ───── DROP ZONE ───── */
#drop-zone {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 58px - 3.5rem);
}

.drop-inner {
    text-align: center;
    background: var(--card-bg);
    border: 2px dashed #cbd5e1;
    border-radius: 18px;
    padding: 4rem 3rem 3rem;
    max-width: 460px;
    width: 100%;
    transition: border-color .2s, background .2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .8rem;
}

#drop-zone.drag-over .drop-inner {
    border-color: var(--primary);
    background: #eff6ff;
}

.drop-inner h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
}

.drop-inner > p {
    color: var(--text-muted);
    font-size: .925rem;
    margin-bottom: .4rem;
}

.drop-hint {
    font-size: .775rem;
    color: #94a3b8;
    margin-top: .25rem;
}

/* ───── PAGES GRID ───── */
#pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(165px, 1fr));
    gap: 1rem;
    padding: .25rem;
}

/* ───── PAGE CARD ───── */
.page-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    cursor: grab;
    transition: transform .15s, box-shadow .15s;
    position: relative;
    user-select: none;
    border: 1.5px solid transparent;
}

.page-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.page-card:active { cursor: grabbing; }

.page-card.sortable-ghost {
    opacity: .35;
}

.page-card.sortable-chosen {
    box-shadow: 0 0 0 2px var(--primary), var(--shadow-lg);
    transform: scale(1.025) rotate(.5deg);
    z-index: 10;
}

.page-thumb {
    width: 100%;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.page-thumb img {
    width: 100%;
    height: auto;
    display: block;
}

.page-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .45rem .6rem;
    background: var(--card-bg);
}

.page-num {
    font-size: .73rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: .01em;
}

.btn-delete {
    width: 26px;
    height: 26px;
    border: none;
    background: transparent;
    color: #94a3b8;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s, color .15s;
    padding: 0;
    flex-shrink: 0;
}
.btn-delete:hover {
    background: #fee2e2;
    color: var(--danger);
}

/* ───── LOADING OVERLAY ───── */
#loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    backdrop-filter: blur(3px);
}

.loading-card {
    background: #fff;
    border-radius: 14px;
    padding: 2rem 2.5rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    min-width: 210px;
}

.spinner {
    width: 38px;
    height: 38px;
    border: 3px solid #e2e8f0;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin .65s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

#loading-text {
    font-size: .9rem;
    color: var(--text-muted);
}

/* ───── TOAST ───── */
#toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    color: #fff;
    padding: .65rem 1.2rem;
    border-radius: 8px;
    font-size: .875rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 300;
    white-space: nowrap;
    animation: toastIn .2s ease;
}

#toast.success { background: var(--success); }
#toast.error   { background: var(--danger); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(-50%) translateY(8px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ───── UTILITIES ───── */
.hidden { display: none !important; }

/* =============================================
   Selección de páginas, giro y editor de texto
   ============================================= */

/* ── Barra de selección ── */
.sel-tools{
  display:flex;align-items:center;gap:6px;
  padding:4px 10px;
  border:1px solid rgba(57,255,20,.28);
  background:rgba(57,255,20,.08);
}
.sel-count{
  font-family:'Space Grotesk',ui-monospace,monospace;
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gom-green,#39ff14);white-space:nowrap;margin-right:4px;
}
.btn.btn-icon{
  min-width:32px;padding:6px 9px;font-size:14px;line-height:1;
  background:transparent;border:1px solid rgba(255,255,255,.12);
  color:var(--gom-text,#e8e8e0);
}
.btn.btn-icon:hover{
  border-color:var(--gom-green,#39ff14);
  background:rgba(57,255,20,.12);
  color:var(--gom-green,#39ff14);
}
.btn.btn-icon.btn-danger:hover{
  border-color:#ff2020;background:rgba(255,32,32,.14);color:#ff5b5b;
}

/* ── Tarjeta de página ── */
.page-card{cursor:pointer;transition:border-color .18s,box-shadow .18s,transform .18s}
.page-card.selected{
  border-color:var(--gom-green,#39ff14) !important;
  box-shadow:0 0 0 1px var(--gom-green,#39ff14),0 0 26px rgba(57,255,20,.22);
}
.page-card.selected .page-num{color:var(--gom-green,#39ff14)}
.page-thumb{position:relative}
.page-thumb img{transition:transform .25s ease}
.page-badge{
  position:absolute;left:6px;top:6px;
  padding:3px 7px;
  background:rgba(5,5,5,.85);
  border:1px solid rgba(57,255,20,.35);
  color:var(--gom-green,#39ff14);
  font-family:'Space Grotesk',ui-monospace,monospace;
  font-size:9px;letter-spacing:.1em;text-transform:uppercase;
}
.btn-edit{
  background:transparent;border:1px solid rgba(57,255,20,.3);
  color:var(--gom-green,#39ff14);cursor:pointer;
  font-family:'Space Grotesk',ui-monospace,monospace;
  font-size:9px;letter-spacing:.12em;text-transform:uppercase;
  padding:3px 8px;margin-left:auto;margin-right:6px;transition:.18s;
}
.btn-edit:hover{background:var(--gom-green,#39ff14);color:#050505}

/* ── Editor de página ── */
#page-editor{
  position:fixed;inset:0;z-index:10000;
  display:flex;align-items:center;justify-content:center;
  background:rgba(2,2,2,.9);backdrop-filter:blur(6px);
  padding:20px;
}
#page-editor.hidden{display:none}
.pe-box{
  display:flex;flex-direction:column;
  width:min(1180px,100%);max-height:100%;
  background:#0b0b0e;border:1px solid rgba(57,255,20,.24);
  box-shadow:0 30px 90px rgba(0,0,0,.85);
}
.pe-head{
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-bottom:1px solid rgba(57,255,20,.14);
}
.pe-head strong{
  font-family:'Bangers',Impact,sans-serif;font-size:24px;letter-spacing:.06em;
  color:var(--gom-green,#39ff14);
}
.pe-hint{font-size:12px;color:var(--gom-muted,#7c7c86);flex:1}
.pe-body{display:flex;gap:0;min-height:0;flex:1}
.pe-stage{
  flex:1;display:flex;align-items:center;justify-content:center;
  padding:20px;overflow:auto;position:relative;
  background:
    linear-gradient(45deg,#0e0e12 25%,transparent 25%),
    linear-gradient(-45deg,#0e0e12 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,#0e0e12 75%),
    linear-gradient(-45deg,transparent 75%,#0e0e12 75%);
  background-size:22px 22px;background-position:0 0,0 11px,11px -11px,-11px 0;
  background-color:#08080a;
}
.pe-wrap{position:relative;display:inline-block;line-height:0;flex-shrink:0}
#pe-canvas{display:block;box-shadow:0 14px 44px rgba(0,0,0,.7)}
#pe-layer{position:absolute;left:0;top:0;pointer-events:none}
#pe-layer .pe-item{pointer-events:auto}

.pe-item{
  position:absolute;
  transform:translateY(-0.05em);
  white-space:pre;cursor:move;
  outline:1px dashed rgba(57,255,20,0);
  transition:outline-color .15s;
  line-height:1.2;
  font-family:Helvetica,Arial,sans-serif;
  user-select:none;
}
.pe-item:hover{outline-color:rgba(57,255,20,.5)}
.pe-item.sel{outline:1px solid var(--gom-green,#39ff14);outline-offset:2px}
.pe-item.caja{transform:none;border:1px dashed rgba(0,0,0,.25)}

.pe-side{
  width:290px;flex-shrink:0;
  border-left:1px solid rgba(57,255,20,.14);
  padding:18px;overflow:auto;
  display:flex;flex-direction:column;gap:14px;
}
.pe-actions{display:flex;gap:8px}
.pe-actions .btn{flex:1;justify-content:center}
.pe-props{display:flex;flex-direction:column;gap:12px}
.pe-lbl{
  display:block;margin-bottom:5px;
  font-family:'Space Grotesk',ui-monospace,monospace;
  font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gom-muted,#7c7c86);
}
.pe-props textarea{
  width:100%;resize:vertical;padding:9px 11px;
  background:#08080a;color:var(--gom-text,#e8e8e0);
  border:1px solid rgba(255,255,255,.1);border-radius:2px;
  font-family:'Outfit',system-ui,sans-serif;font-size:14px;
}
.pe-props textarea:focus{border-color:var(--gom-green,#39ff14);outline:none}
.pe-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:end}
.pe-row input[type=range]{width:100%}
.pe-row input[type=color]{
  width:52px;height:34px;padding:2px;cursor:pointer;
  background:#08080a;border:1px solid rgba(255,255,255,.1);
}
.pe-check{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--gom-text,#e8e8e0);cursor:pointer;
}
.pe-check input{width:auto;margin:0}
.pe-empty,.pe-note{
  font-size:12.5px;line-height:1.65;color:var(--gom-muted,#7c7c86);
}
.pe-note{
  margin-top:auto;padding:12px 14px;
  border:1px dashed rgba(57,255,20,.22);
}

@media (max-width:900px){
  .pe-body{flex-direction:column}
  .pe-side{width:auto;border-left:none;border-top:1px solid rgba(57,255,20,.14)}
  .sel-tools{flex-wrap:wrap}
}

/* El atributo hidden debe ganarle a las clases con display:flex/grid.
   Sin esto, el panel de propiedades y la barra de selección se veían siempre. */
[hidden]{display:none !important}

/* El texto de la vista previa se ajusta igual que al exportar,
   para que lo que se ve sea lo que sale. */
.pe-item:not(.caja){white-space:pre-wrap;max-width:none}

/* ── Capa de clonado ── */
#pe-clone-canvas{
  position:absolute;left:0;top:0;pointer-events:none;
}
.pe-stage.clonando #pe-canvas,
.pe-stage.clonando #pe-clone-canvas{
  cursor:crosshair;
}
.pe-stage.clonando{cursor:crosshair}
.pe-actions .btn.activo{
  background:var(--gom-green,#39ff14) !important;
  color:#050505 !important;border-color:var(--gom-green,#39ff14) !important;
}
.pe-clone-tip{
  padding:12px 14px;border:1px solid rgba(57,255,20,.25);
  background:rgba(57,255,20,.07);
  font-size:12.5px;line-height:1.6;color:var(--gom-muted,#7c7c86);
}
.pe-clone-tip strong{
  display:block;margin-bottom:5px;
  font-family:'Space Grotesk',ui-monospace,monospace;
  font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gom-green,#39ff14);
}
.pe-clone-tip b{color:var(--gom-text,#e8e8e0)}

/* ── Tiradores para redimensionar el recuadro ── */
.pe-handle{
  position:absolute;width:12px;height:12px;
  background:var(--gom-green,#39ff14);
  border:2px solid #050505;
  border-radius:50%;
  opacity:0;transition:opacity .15s;
}
.pe-item.caja:hover .pe-handle,
.pe-item.caja.sel .pe-handle{opacity:1}
.h-nw{left:-6px;top:-6px;cursor:nwse-resize}
.h-ne{right:-6px;top:-6px;cursor:nesw-resize}
.h-sw{left:-6px;bottom:-6px;cursor:nesw-resize}
.h-se{right:-6px;bottom:-6px;cursor:nwse-resize}

/* ── Giro rápido del texto ── */
.pe-rot-quick{display:flex;gap:6px;margin-top:8px}
.pe-rot-quick button{
  flex:1;padding:5px 0;cursor:pointer;
  background:transparent;border:1px solid rgba(255,255,255,.12);
  color:var(--gom-muted,#7c7c86);
  font-family:'Space Grotesk',ui-monospace,monospace;font-size:11px;
  transition:.15s;
}
.pe-rot-quick button:hover{
  border-color:var(--gom-green,#39ff14);color:var(--gom-green,#39ff14);
  background:rgba(57,255,20,.1);
}


/* La capa de elementos y la de clonado se apilan sobre el lienzo dentro de
   .pe-wrap, que se ajusta al tamaño exacto del canvas. */
#pe-layer,#pe-clone-canvas{position:absolute;left:0;top:0}
#pe-layer{pointer-events:none}
#pe-layer .pe-item{pointer-events:auto}

/* Al arrastrar tiradores el navegador seleccionaba texto de la página. */
.pe-wrap{user-select:none;-webkit-user-select:none}
.pe-side{user-select:none;-webkit-user-select:none}
.pe-side textarea{user-select:text;-webkit-user-select:text}

/* =============================================
   Modal de foliado
   ============================================= */
#folio-modal{
  position:fixed;inset:0;z-index:10001;
  display:flex;align-items:center;justify-content:center;
  background:rgba(2,2,2,.9);backdrop-filter:blur(6px);padding:20px;
}
#folio-modal.hidden{display:none}
.fo-box{
  width:min(860px,100%);max-height:100%;display:flex;flex-direction:column;
  background:#0b0b0e;border:1px solid rgba(57,255,20,.24);
  box-shadow:0 30px 90px rgba(0,0,0,.85);
}
.fo-head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 18px;border-bottom:1px solid rgba(57,255,20,.14);
}
.fo-head strong{
  font-family:'Bangers',Impact,sans-serif;font-size:24px;letter-spacing:.06em;
  color:var(--gom-green,#39ff14);
}
.fo-body{display:flex;gap:0;min-height:0;overflow:auto}
.fo-campos{
  flex:1;padding:20px;display:flex;flex-direction:column;gap:12px;min-width:0;
}
.fo-campos select,.fo-campos input[type=text],.fo-campos input[type=number]{
  width:100%;padding:9px 11px;background:#08080a;color:var(--gom-text,#e8e8e0);
  border:1px solid rgba(255,255,255,.1);border-radius:2px;
  font-family:'Outfit',system-ui,sans-serif;font-size:14px;
}
.fo-campos select:focus,.fo-campos input:focus{
  border-color:var(--gom-green,#39ff14);outline:none;
}
.fo-pos{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.fo-pos button{
  padding:10px 0;cursor:pointer;font-size:16px;
  background:#08080a;border:1px solid rgba(255,255,255,.1);
  color:var(--gom-muted,#7c7c86);transition:.15s;
}
.fo-pos button:hover{border-color:rgba(57,255,20,.5);color:var(--gom-text,#e8e8e0)}
.fo-pos button.on{
  background:rgba(57,255,20,.14);border-color:var(--gom-green,#39ff14);
  color:var(--gom-green,#39ff14);
}
.fo-vista{
  width:300px;flex-shrink:0;padding:20px;
  border-left:1px solid rgba(57,255,20,.14);
  display:flex;flex-direction:column;gap:10px;
}
.fo-hoja{
  aspect-ratio:8.5/11;background:#fff;
  display:flex;padding:10px;
  box-shadow:0 10px 34px rgba(0,0,0,.6);
}
.fo-num{font-family:Helvetica,Arial,sans-serif;line-height:1}
.fo-nota{
  font-size:12px;line-height:1.6;color:var(--gom-muted,#7c7c86);margin:0;
}
.fo-pie{
  display:flex;gap:10px;justify-content:flex-end;
  padding:14px 18px;border-top:1px solid rgba(57,255,20,.14);
}
@media (max-width:820px){
  .fo-body{flex-direction:column}
  .fo-vista{width:auto;border-left:none;border-top:1px solid rgba(57,255,20,.14)}
}

/* =============================================================
   Teléfono: la barra superior crecía a 1078 px y obligaba a
   desplazar la página en horizontal. Se deja fluir en varias
   líneas y los controles pasan a tamaño táctil.
   ============================================================= */
@media (max-width:760px){
  .app-header{
    height:auto;flex-wrap:wrap;gap:.5rem;padding:.6rem .8rem;
    position:static;
  }
  .app-brand{width:100%;font-size:.9rem}
  .app-toolbar{
    width:100%;flex-wrap:wrap;gap:.4rem;
    justify-content:flex-start;
  }
  .toolbar-sep{display:none}
  .page-info{min-width:0;text-align:left;order:99;width:100%}

  .app-toolbar .btn{
    flex:1 1 auto;min-height:40px;justify-content:center;
    font-size:.8rem;padding:.5rem .7rem;
  }
  .app-toolbar .btn.btn-icon{flex:0 0 auto;min-width:44px}
  #btn-download{flex:1 1 100%}

  .sel-tools{
    width:100%;flex-wrap:wrap;justify-content:flex-start;
    padding:.5rem;
  }
  .sel-count{width:100%;margin:0 0 .25rem}

  /* Rejilla de páginas: dos por fila en lugar de miniaturas diminutas */
  #pages-grid{grid-template-columns:repeat(2,1fr) !important;gap:.6rem}
  .page-footer{flex-wrap:wrap;gap:.3rem;padding:.4rem}
  .btn-edit{margin:0}

  /* Editor de página a pantalla completa */
  #page-editor{padding:0}
  .pe-box{width:100%;height:100%;max-height:100%}
  .pe-head{flex-wrap:wrap;gap:.5rem;padding:.7rem .8rem}
  .pe-hint{display:none}
  .pe-stage{padding:10px}
  .pe-side{width:auto;max-height:42vh}

  /* Foliado */
  .fo-box{width:100%;height:100%;max-height:100%}
  .fo-vista{width:auto}
  .fo-hoja{max-height:180px}
}