:root{ 
  --bg:#0c0f14;
  --panel:#111824;
  --muted:#8aa0b3;
  --text:#eaf6ff;
  --accent:#00fff8;
  --accent-2:#5ff7ff;
  --border:rgba(0,255,248,.25);
  --ok:#20d19b;
  --warn:#ffb86b;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: radial-gradient(60rem 60rem at 10% -10%, rgba(0,255,248,.08), transparent 60%),
              linear-gradient(180deg, #0a0f14, #0c0f14 40%, #0a0f14);
  color:var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.5;
}

.app-header{ padding:28px 20px 10px; text-align:center; }
.app-header h1{
  margin:0; font-size: clamp(22px, 3vw, 34px); letter-spacing:.3px; font-weight:800;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.subtitle{ margin-top:6px; color:var(--muted); font-size:.95rem; }

.container{
  width:min(1150px, 92vw);
  margin: 10px auto 48px;
  display:grid;
  gap:22px;
  grid-template-columns: 1fr;
}

.card{
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  overflow:hidden;
}

/* ===== Campos ===== */
.field{ display:flex; flex-direction:column; gap:8px; margin-bottom:22px; }
label{ color:#d7e7f7; font-weight:600 }
input{
  background:#0e1420; border:1px solid var(--border); color:var(--text);
  border-radius:12px; padding:12px 14px; outline:none; text-transform:lowercase;
}
input:focus{ border-color:var(--accent); box-shadow:0 0 0 3px rgba(0,255,248,.15) }
.field textarea{
  background:#0b111b; color:#dff7ff; border:1px solid var(--border);
  border-radius:12px; padding:12px 14px; outline:none;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  resize: vertical; min-height: 96px;
}

/* ===== Selector existe ===== */
.mode-select{ margin-bottom:16px; }
.mode-select--lite{
  padding:14px; border:1px solid var(--border); border-radius:14px;
  background:linear-gradient(180deg, rgba(255,255,255,.015), rgba(255,255,255,.005));
}
.mode-title{ font-weight:800; letter-spacing:.2px; margin-bottom:10px; font-size:1rem; }
.mode-options{ display:flex; gap:12px; flex-wrap:wrap; }
.mode-options input[type="radio"]{ position:absolute; opacity:0; pointer-events:none; }
.mode-opt{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 16px; border-radius:12px; border:1px solid var(--border);
  background:#0d131e; color:#d7e7f7; cursor:pointer;
  transition: box-shadow .2s, border-color .2s, transform .08s, background .2s;
  font-weight:800; letter-spacing:.4px;
  font-size:.9rem;
}
.mode-opt:hover{ box-shadow:0 8px 18px rgba(0,255,248,.16); border-color: rgba(0,255,248,.35); }
.mode-dot{ width:10px; height:10px; border-radius:50%; border:1px solid var(--border); background:#0b121a; }
#project-exists-no:checked + label .mode-dot,
#project-exists-yes:checked + label .mode-dot{ background:var(--accent); border-color:transparent; }
#project-exists-no:checked + label,
#project-exists-yes:checked + label{
  border-color: var(--accent);
  background:linear-gradient(180deg, rgba(0,255,248,.16), rgba(0,255,248,.08));
}

/* ===== Botones ===== */
.btn{
  background:linear-gradient(180deg, rgba(0,255,248,.2), rgba(0,255,248,.1));
  border:1px solid var(--accent); color:#042426;
  font-weight:800; text-transform:uppercase; letter-spacing:.4px;
  padding:10px 14px; border-radius:12px; cursor:pointer;
  transition: transform .08s ease, box-shadow .2s ease, background .2s ease, filter .2s ease;
}
.btn:hover{ box-shadow:0 8px 20px rgba(0,255,248,.25) }
.btn:active{ transform: translateY(1px) }

/* Variantes */
.btn-outline{ background: transparent; color:var(--accent); border-color: var(--border); }
.btn-ghost{ background: transparent; color: var(--muted); border-color: var(--border); }
.btn-icon{ display:inline-flex; align-items:center; gap:8px; }
.btn-icon .icon{ width:18px; height:18px; display:inline-block; }
.is-disabled{ opacity:.6; pointer-events:none; }

/* === Animación unificada para TODOS los botones === */
/* Aplica cuando se añade .btn-flash desde JS o desde cualquier acción */
.btn-flash{
  /* NO oscurece: mantiene colores originales */
  filter: drop-shadow(0 0 10px rgba(0,255,248,.35));
  animation: btnPulse .8s ease;
}
@keyframes btnPulse{
  0%{ transform: scale(1); }
  45%{ transform: scale(1.035); }
  100%{ transform: scale(1); }
}
/* Variante informativa (ok): solo refuerza el glow */
.flash-ok{ box-shadow: 0 0 0 0 rgba(0,255,248,0); }
/* Variante aviso (warn): glow ámbar, sin cambiar fondo/ texto */
.flash-warn{
  filter: drop-shadow(0 0 12px rgba(255,184,107,.38));
}

/* ===== Dropzone ===== */
.dropzone{
  padding:30px; text-align:center; border:1.5px dashed var(--border);
  background:#0e1520; cursor:pointer; margin-top:4px;
}
.dropzone.dragover{ border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0,255,248,.15) inset; }
.dz-inner{ display:grid; place-items:center; gap:6px; color:var(--muted) }
.dz-inner svg{ color:var(--accent); }

/* ===== Section headers ===== */
.section-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:10px; }
.section-head h2{ margin:0; font-size:1.05rem; letter-spacing:.2px }
.section-head .right, .section-head .actions{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; }

/* ===== Lista ===== */
.file-list{ list-style:none; padding:0; margin:0; display:grid; gap:10px; }

/* Layout desktop */
.file-item{
  display:grid;
  grid-template-columns: 56px 1fr auto;
  grid-template-areas: "thumb meta actions";
  gap:12px; align-items:center;
  padding:12px; border:1px solid var(--border); border-radius:12px; background:#0d131e;
}
.thumb{ grid-area: thumb; width:56px; height:56px; border-radius:10px; overflow:hidden; border:1px solid var(--border); display:grid; place-items:center; background:#0a111c; position:relative; }
.thumb img{ width:100%; height:100%; object-fit:cover }

/* Indicador de procesamiento en cada miniatura */
.thumb-overlay{
  position:absolute; inset:0;
  background:rgba(0,0,0,.35);
  display:grid; place-items:center;
}
.spinner{
  width:22px; height:22px;
  border-radius:50%;
  border:2.5px solid rgba(255,255,255,.35);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg);} }

.meta{ grid-area: meta; display:flex; flex-direction:column; gap:3px }
.meta .name{
  font-weight:900;
  letter-spacing:.2px;
  font-size: clamp(14px, 2.6vw, 18px);
  line-height:1.25;
  color:#eaf7ff;
  text-shadow: 0 0 12px rgba(0,255,248,.06);
}
.meta .sub{ color:var(--muted); font-size:.9rem }

/* Acciones */
.item-actions{
  grid-area: actions;
  display:flex; align-items:center; gap:12px;
}
/* ✅ Checkbox vuelve al estilo anterior (nativo) */
.item-actions .mark-first{
  display:inline-flex; align-items:center; gap:6px; color:var(--muted);
}
.item-actions .mark-first input[type="checkbox"]{
  /* nativo; solo alineamos tamaño/foco suave */
  width:16px; height:16px;
  accent-color: var(--accent); /* soporte moderno, mantiene look del sistema */
}
.item-actions .mark-first span{ font-weight:700 }

.item-actions .btns{ display:flex; gap:8px; margin-left:auto; }
.item-actions .btn{ padding:10px; min-width:auto; }

/* ===== Output ===== */
.output{ width:100%; margin-top:12px; background:#0b111b; color:#dff7ff; border:1px solid var(--border); border-radius:12px; padding:12px 14px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; resize: vertical; }
.obj-meta{ display:flex; gap:16px; flex-wrap:wrap; color:var(--muted); margin-bottom:8px; }

.hidden{ display:none !important; }
.app-footer{ text-align:center; color:var(--muted); padding:24px 12px 40px; }

/* ===== Overlay global drag & drop ===== */
.dnd-overlay{ position:fixed; inset:0; background:rgba(6,10,16,.6); backdrop-filter: blur(2px); display:flex; align-items:center; justify-content:center; z-index:99999; }
.dnd-content{ display:grid; place-items:center; gap:16px; text-align:center; }
.dnd-text{ color:#dff7ff; font-weight:800; letter-spacing:.5px; text-transform:uppercase; }

/* === Cohete minimal === */
.rocket-wrap{
  color: var(--accent);
  width:96px; height:128px;
  filter: drop-shadow(0 0 12px rgba(0,255,248,.18));
  animation: rk-float 1.8s ease-in-out infinite;
}
.rocket-svg{ width:100%; height:100%; display:block; }
.rocket-svg .rk-body{ stroke: currentColor; }
.rocket-svg .rk-flame path{
  fill: currentColor;
  transform-origin: 60px 132px;
  animation: rk-flame 0.7s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 16px rgba(0,255,248,.35));
}
.rocket-svg .rk-sparks circle{
  fill: currentColor; opacity:.9;
  animation: rk-sparks 1.4s linear infinite;
}
.rocket-svg .rk-sparks circle:nth-child(2){ animation-delay:.15s; opacity:.7 }
.rocket-svg .rk-sparks circle:nth-child(3){ animation-delay:.3s;  opacity:.6 }
.rocket-svg .rk-sparks circle:nth-child(4){ animation-delay:.45s; opacity:.5 }

@keyframes rk-flame{
  from{ transform: scaleY(.85) translateY(0); opacity:.8 }
  to  { transform: scaleY(1.25) translateY(3px); opacity:1 }
}
@keyframes rk-sparks{
  0%   { transform: translateY(0) scale(1);    opacity:.9 }
  70%  { transform: translateY(14px) scale(.9); opacity:.4 }
  100% { transform: translateY(18px) scale(.6); opacity:0 }
}
@keyframes rk-float{
  0%{ transform: translateY(0) rotate(-2deg);}
  50%{ transform: translateY(-8px) rotate(2deg);}
  100%{ transform: translateY(0) rotate(-2deg);}
}

/* ===== Desktop: dos columnas ===== */
@media (min-width:960px){
  .container{ grid-template-columns: 1.2fr 1fr; grid-auto-flow: row dense; }
  .controls{ grid-column:1 } .dropzone{ grid-column:1 }
  .card--object{ grid-column:2; grid-row: 1 / span 2; display:flex; flex-direction:column; }
  .card--object .output{ flex: 1 1 auto; min-height: 0; }
  .container > .card:nth-of-type(4){ grid-column: 1 / span 2 }
}

/* ===== Móvil ===== */
@media (max-width:600px){
  .app-header, .dropzone, .controls .mode-title, .subtitle{ text-align:center; }
  .container{ width:min(1150px,94vw); padding:0 8px; }

  .obj-meta{ flex-direction:column; align-items:flex-start; gap:10px; }

  .section-head--list{ flex-direction:column; align-items:flex-start; gap:8px; }

  .file-item{
    grid-template-columns: 56px 1fr;
    grid-template-areas:
      "thumb meta"
      "actions actions";
    row-gap:10px;
  }
  .item-actions{ justify-content:space-between; }
  .item-actions .btns{ margin-left:0; }

  /* Ocultar texto en móvil donde aplica */
  .btn-clear .btn-text{ display:none; }
  #btn-opt .btn-text{ display:none; }

  .rocket-wrap{ width:84px; height:116px; }
}

/* Suave hover en desktop */
@media (hover:hover){
  .file-item:hover{ box-shadow:0 8px 20px rgba(0,0,0,.25); }
}