/* ===========================================================
   Brief de Portada  estilos
   =========================================================== */

/* Tema oscuro por defecto. El claro se activa con data-tema="claro"
   en <html>. Todo lo que cambia entre temas vive aqui: ninguna regla
   de mas abajo debe llevar un color de tema escrito a mano. */
:root{
  color-scheme: dark;

  --bg:         #0b0b0d;
  --panel:      #141418;
  --panel-2:    #1b1b21;
  --line:       #2a2a33;
  --line-soft:  #202028;
  --text:       #f3f3f6;
  --muted:      #90909f;
  --accent:     #25d366;   /* verde WhatsApp */
  --accent-2:   #12a85c;
  --accent-ink: #3ee07f;   /* verde para texto, legible sobre oscuro */
  --on-accent:  #06331c;   /* texto sobre el verde */
  --ok:         #25d366;
  --danger:     #ff5a5a;

  --velo:     rgba(11,11,13,.82);      /* barras superior e inferior */
  --contorno: rgba(255,255,255,.22);   /* bordes de muestras de color */
  --sombra:   rgba(0,0,0,.75);
  --aviso-bg: #23232b;                 /* mensajes flotantes */
  --aviso-tx: #f3f3f6;

  --r:         14px;
  --r-lg:      20px;
  --topbar:    56px;
  --navbar:    76px;
}

:root[data-tema="claro"]{
  color-scheme: light;

  --bg:         #f6f7f9;
  --panel:      #ffffff;
  --panel-2:    #f0f2f5;
  --line:       #dde2e7;
  --line-soft:  #e9edf0;
  --text:       #111b21;
  --muted:      #667781;
  --accent-ink: #0a7a42;
  --danger:     #d93025;

  --velo:     rgba(255,255,255,.88);
  --contorno: rgba(0,0,0,.18);
  --sombra:   rgba(11,27,33,.4);
  --aviso-bg: #1f2a30;
  --aviso-tx: #ffffff;
}

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

/* [hidden] debe ganar: hay bloques con display flex/grid. */
[hidden]{ display:none !important; }

html,body{ height:100%; }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
  overscroll-behavior-y:none;
}

/* glow de fondo */
body::before{
  content:"";
  position:fixed; inset:0;
  background:
    radial-gradient(60vw 40vh at 15% -5%, rgba(37,211,102,.13), transparent 70%),
    radial-gradient(50vw 35vh at 95% 105%, rgba(18,168,92,.10), transparent 70%);
  pointer-events:none; z-index:0;
}

.shell{ position:relative; z-index:1; min-height:100%; display:flex; flex-direction:column; }

/* ---------- Topbar ---------- */
.top{
  position:sticky; top:0; z-index:20;
  height:var(--topbar);
  display:flex; align-items:center; justify-content:space-between;
  padding:0 18px;
  background:var(--velo);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.brand{ display:flex; align-items:center; gap:10px; font-weight:600; font-size:15px; letter-spacing:-.01em; }
.dot{
  width:10px; height:10px; border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 0 10px rgba(37,211,102,.55);
}
.top-right{ display:flex; align-items:center; gap:12px; }
.lang{
  display:flex; align-items:center; gap:7px;
  padding:9px 17px; border-radius:999px; border:0;
  background:var(--accent); color:var(--on-accent);
  font:inherit; font-size:14px; font-weight:700; letter-spacing:-.01em;
  cursor:pointer; white-space:nowrap;
  box-shadow:0 2px 10px -3px rgba(10,122,66,.55);
  transition:background .16s, transform .14s;
}
.lang::before{ content:"\1f310 "; font-size:14px; }
.lang::after{ content:"\21c4 "; font-size:12px; opacity:.75; }
.lang:hover{ background:var(--accent-2); }
.lang:active{ transform:scale(.96); }
/* El icono anuncia a que tema se cambia, igual que el boton de
   idioma anuncia a que idioma se cambia. */
.tema{
  flex:none; width:34px; height:34px; border-radius:50%;
  border:1px solid var(--line); background:var(--panel); color:var(--text);
  font-size:15px; line-height:1; cursor:pointer; display:grid; place-items:center;
  transition:border-color .16s, background .16s, transform .14s;
}
.tema::before{ content:"\2600"; }
:root[data-tema="claro"] .tema::before{ content:"\263d"; }
.tema:hover{ border-color:var(--accent-ink); background:var(--panel-2); }
.tema:active{ transform:scale(.92); }

.counter{ font-size:13px; color:var(--muted); font-variant-numeric:tabular-nums; }
.counter b{ color:var(--text); font-weight:600; }

/* ---------- Progreso ---------- */
.progress{
  position:sticky; top:var(--topbar); z-index:19;
  height:3px; background:var(--line-soft);
}
.progress i{
  display:block; height:100%; width:16.6%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transition:width .45s cubic-bezier(.22,1,.36,1);
}

/* ---------- Pasos ---------- */
main{ flex:1; padding:28px 18px calc(var(--navbar) + 28px); max-width:680px; width:100%; margin:0 auto; }

.step{ display:none; }
.step.is-active{ display:block; animation:in .38s cubic-bezier(.22,1,.36,1); }
@keyframes in{ from{ opacity:0; transform:translateY(14px); } to{ opacity:1; transform:none; } }

.eyebrow{
  margin:0 0 8px; font-size:12px; font-weight:600; letter-spacing:.12em;
  text-transform:uppercase; color:var(--accent-ink);
}
/* Titulares: Archivo en ancho 125 y peso 900. */
h1{
  font-family:"Archivo","Arial Black","Inter",sans-serif;
  font-weight:900; font-stretch:125%;
  font-size:clamp(27px,7.4vw,38px);
  line-height:1.02; letter-spacing:-.018em;
  text-transform:uppercase; margin:0 0 10px;
}
.sub{ margin:0 0 26px; color:var(--muted); font-size:15px; }
.sub em{ color:var(--text); font-style:normal; font-weight:600; }

/* ---------- Campos ---------- */
.field{ margin-bottom:22px; }
.field.tight{ margin-top:18px; }
.field label{ display:block; font-size:14px; font-weight:600; margin-bottom:9px; }
.req{ color:var(--accent-ink); font-style:normal; }
.opt{ color:var(--muted); font-weight:400; }

input[type=text], input[type=date], textarea{
  width:100%; padding:14px 15px;
  background:var(--panel); color:var(--text);
  border:1px solid var(--line); border-radius:var(--r);
  font:inherit; font-size:16px; outline:none;
  transition:border-color .18s, box-shadow .18s, background .18s;
}
textarea{ resize:vertical; min-height:92px; line-height:1.55; }
input::placeholder, textarea::placeholder{ color:#9aa3ab; }
input:focus, textarea:focus{
  border-color:var(--accent);
  background:var(--panel-2);
  box-shadow:0 0 0 4px rgba(37,211,102,.14);
}
input.err{ border-color:var(--danger); box-shadow:0 0 0 4px rgba(255,90,90,.14); }
input[type=date]{ color-scheme:inherit; }

.note{ margin:10px 0 0; font-size:13px; color:var(--muted); }

/* ---------- Segmentado ---------- */
.seg{ display:flex; gap:8px; background:var(--panel); border:1px solid var(--line); border-radius:var(--r); padding:5px; }
.seg-btn{
  flex:1; padding:11px 8px; border:0; border-radius:10px;
  background:transparent; color:var(--muted);
  font:inherit; font-size:15px; font-weight:600; cursor:pointer;
  transition:background .18s, color .18s;
}
.seg-btn.is-on{ background:var(--accent); color:var(--on-accent); }

/* ---------- Tarjetas de estilo ---------- */
.cards{ display:grid; grid-template-columns:repeat(2,1fr); gap:12px; }
.card{
  position:relative; display:flex; flex-direction:column; text-align:left;
  padding:0 0 13px; border:1px solid var(--line); border-radius:var(--r-lg);
  background:var(--panel); color:var(--text); cursor:pointer; overflow:hidden;
  font:inherit; transition:border-color .2s, transform .15s, box-shadow .2s;
}
.card:active{ transform:scale(.98); }
.card.is-on{
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(37,211,102,.35), 0 10px 30px -12px rgba(37,211,102,.5);
}
.card.is-on::after{
  content:"\2713 "; position:absolute; top:10px; right:10px;
  width:26px; height:26px; border-radius:50%;
  background:var(--accent); color:var(--on-accent);
  display:grid; place-items:center; font-size:14px; font-weight:700;
}
.card-img{
  display:block; aspect-ratio:1/1; margin-bottom:11px;
  background:var(--panel-2); position:relative; overflow:hidden;
}
.card-img img{ width:100%; height:100%; object-fit:cover; display:block; }
.card-img img.hide{ display:none; }
/* Fondo de respaldo cuando falta el archivo de imagen. */
.ph1{ background:linear-gradient(140deg,#ff8a3d,#c2410c 55%,#431407); }   /* Ilustracion */
.ph2{ background:linear-gradient(140deg,#22d3ee,#0f172a 48%,#f97316); }   /* Cinematografico */
.ph3{ background:linear-gradient(140deg,#64748b,#1e293b 55%,#020617); }   /* Fotorealista */
.ph4{ background:linear-gradient(140deg,#60a5fa,#7c3aed 55%,#1e1b4b); }   /* 3D */
.ph5{ background:linear-gradient(140deg,#f5f5f4,#a8a29e 60%,#57534e); }   /* Clean */
.ph6{ background:linear-gradient(140deg,#2bff88,#2d6cff 50%,#7a3dff); }   /* Estilo libre */
.card-t{ padding:0 13px; font-size:15px; font-weight:700; letter-spacing:-.01em; }
.card-d{ padding:2px 13px 0; font-size:12.5px; color:var(--muted); line-height:1.35; }

/* ---------- Extras (casillas) ---------- */
.extras{ display:grid; grid-template-columns:1fr; gap:8px; }
@media(min-width:520px){ .extras{ grid-template-columns:1fr 1fr; } }
.extra{
  display:flex; align-items:center; gap:11px; text-align:left;
  padding:12px 14px; border:1px solid var(--line); border-radius:var(--r);
  background:var(--panel); color:var(--muted);
  font:inherit; font-size:14.5px; font-weight:500; cursor:pointer;
  transition:all .16s;
}
.extra:active{ transform:scale(.98); }
.extra .box{
  flex:none; width:21px; height:21px; border-radius:6px;
  border:1.5px solid var(--line); background:transparent;
  display:grid; place-items:center; transition:all .16s;
}
.extra .box::after{ content:"\2713 "; font-size:13px; font-weight:700; color:var(--on-accent); opacity:0; transition:opacity .14s; }
.extra.is-on{ border-color:var(--accent); background:var(--panel-2); color:var(--text); font-weight:600; }
.extra.is-on .box{ background:var(--accent); border-color:var(--accent); }
.extra.is-on .box::after{ opacity:1; }

/* ---------- Campo "Otro" ---------- */
input.otro{ margin-top:10px; }
input.otro[hidden]{ display:none; }

/* ---------- Chips ---------- */
.chips{ display:flex; flex-wrap:wrap; gap:8px; }
.chip{
  padding:10px 15px; border-radius:999px;
  border:1px solid var(--line); background:var(--panel); color:var(--muted);
  font:inherit; font-size:14px; font-weight:500; cursor:pointer;
  transition:all .16s;
}
.chip:active{ transform:scale(.95); }
.chip.is-on{ background:var(--accent); border-color:var(--accent); color:var(--on-accent); font-weight:600; }

/* ---------- Paletas ---------- */
.palettes{ display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.pal{
  padding:11px 9px 10px; border:1px solid var(--line); border-radius:var(--r);
  background:var(--panel); color:var(--text); cursor:pointer; font:inherit;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  transition:all .16s;
}
.pal:active{ transform:scale(.96); }
.pal.is-on{ border-color:var(--accent); box-shadow:0 0 0 2px rgba(37,211,102,.3); }
.pal-sw{ display:flex; gap:0; border-radius:999px; overflow:hidden; width:100%; height:26px;
  box-shadow:inset 0 0 0 1px var(--contorno); }
.pal-sw i{ flex:1; display:block; }
.pal-t{ font-size:12px; font-weight:600; color:var(--muted); text-align:center; line-height:1.2; }
.pal.is-on .pal-t{ color:var(--text); }

/* ---------- Color pickers ---------- */
.pickers{ display:flex; gap:10px; flex-wrap:wrap; }
.picker{
  position:relative; display:flex; align-items:center; gap:9px;
  padding:9px 14px 9px 9px; border:1px solid var(--line); border-radius:999px;
  background:var(--panel); color:var(--muted); font:inherit; font-size:13.5px;
  font-weight:500; cursor:pointer; transition:all .16s;
}
.picker i{ width:24px; height:24px; border-radius:50%; border:1px solid var(--contorno); display:block; }
.picker.is-on{ border-color:var(--accent); color:var(--text); }
.picker input[type=color]{
  position:absolute; inset:0; opacity:0; width:100%; height:100%; cursor:pointer; border:0; padding:0;
}
.picker.abierto{ border-color:var(--accent-ink); box-shadow:0 0 0 2px rgba(37,211,102,.28); }

/* ---------- Selector de color ---------- */
.cp{
  margin-top:12px; padding:14px;
  background:var(--panel); border:1px solid var(--line); border-radius:var(--r);
  box-shadow:0 10px 26px -14px var(--sombra);
}
.cp-top{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.cp-vista{
  width:40px; height:40px; border-radius:10px; flex:none;
  border:1px solid var(--contorno);
}
.cp-hex{
  flex:1; min-width:0; padding:10px 12px !important;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace !important;
  text-transform:lowercase; letter-spacing:.04em;
}
.cp-ok{
  flex:none; border:0; border-radius:999px; padding:10px 20px;
  background:var(--accent); color:var(--on-accent);
  font:inherit; font-size:14px; font-weight:700; cursor:pointer;
}
.cp-ok:hover{ background:var(--accent-2); }

/* Etiqueta encima y barra a todo lo ancho: se apunta mejor, sobre
   todo con el dedo. */
.cp-fila{ display:flex; flex-direction:column; align-items:stretch; gap:5px; margin-bottom:12px; }
.cp-fila:last-child{ margin-bottom:0; }
.cp-et{ font-size:12.5px; font-weight:600; color:var(--muted); }

.cp-r{
  flex:1 1 auto; width:100%; min-width:0; height:16px; border-radius:999px;
  -webkit-appearance:none; appearance:none; outline:none; cursor:pointer;
  border:1px solid var(--contorno);
}
.cp-r::-webkit-slider-thumb{
  -webkit-appearance:none; appearance:none;
  width:22px; height:22px; border-radius:50%;
  background:#fff; border:2px solid var(--text); cursor:grab;
  box-shadow:0 1px 4px rgba(0,0,0,.35);
}
.cp-r::-moz-range-thumb{
  width:20px; height:20px; border-radius:50%;
  background:#fff; border:2px solid var(--text); cursor:grab;
  box-shadow:0 1px 4px rgba(0,0,0,.35);
}
.cp-r::-moz-range-track{ background:transparent; }

.picker.mas{
  justify-content:center; min-width:48px; padding:9px 15px;
  border-style:dashed; color:var(--accent-ink); font-size:19px; font-weight:700;
}
.picker.mas:hover{ border-color:var(--accent-ink); border-style:solid; }

.pk-x{
  display:none; position:absolute; top:-6px; right:-6px; z-index:3;
  width:21px; height:21px; border-radius:50%;
  background:var(--panel); color:var(--muted); border:1px solid var(--line);
  font-size:13px; line-height:19px; text-align:center; cursor:pointer;
}
.picker.is-on .pk-x{ display:block; }

/* ---------- Miniaturas de referencias ---------- */
.thumbs{ display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-top:12px; }
.thumbs:empty{ display:none; }
.thumb{
  position:relative; aspect-ratio:1/1; border-radius:var(--r);
  overflow:hidden; border:1px solid var(--line); background:var(--panel-2);
}
.thumb img{ width:100%; height:100%; object-fit:cover; display:block; }
.thumb .kill{
  position:absolute; top:6px; right:6px; z-index:2;
  width:26px; height:26px; border-radius:50%; border:0;
  background:rgba(0,0,0,.66); color:#fff; font-size:15px; line-height:1;
  cursor:pointer; display:grid; place-items:center;
}
@media(max-width:480px){ .thumbs{ grid-template-columns:repeat(2,1fr); } }

/* ---------- Dropzone material ---------- */
.drop{
  display:flex; flex-direction:column; align-items:center; gap:5px;
  padding:34px 20px; border:1.5px dashed var(--line); border-radius:var(--r-lg);
  background:var(--panel); cursor:pointer; text-align:center;
  transition:border-color .18s, background .18s;
}
.drop:hover, .drop.drag{ border-color:var(--accent); background:var(--panel-2); }
.drop-ic{
  width:42px; height:42px; border-radius:50%; margin-bottom:6px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:var(--on-accent);
  display:grid; place-items:center; font-size:20px; font-weight:700;
}
.drop b{ font-size:15.5px; }
.drop small{ color:var(--muted); font-size:13px; }

/* ---------- Nota de voz ---------- */
:root{
  --wa-verde:   #25d366;
  --wa-verde-2: #128c7e;
  --wa-papel:   #ece5dd;   /* fondo de chat */
  --wa-burbuja: #ffffff;
  --wa-salida:  #d9fdd3;   /* burbuja propia */
  --wa-texto:   #111b21;
  --wa-suave:   #667781;
  --wa-linea:   #d8dde1;
}

.voice{
  margin-top:24px; padding:12px;
  background:var(--wa-papel); border-radius:var(--r-lg);
  display:flex; flex-direction:column; gap:10px;
}
.voice-btn{
  display:flex; align-items:center; gap:13px; width:100%; text-align:left;
  padding:12px 14px; border:0; border-radius:14px;
  background:var(--wa-burbuja); color:var(--wa-texto); font:inherit; cursor:pointer;
  box-shadow:0 1px 2px rgba(11,20,26,.14);
  transition:background .18s, transform .14s;
}
.voice-btn:hover{ background:#f7f9fa; }
.voice-btn:active{ transform:scale(.985); }
.voice-ic{
  flex:none; width:38px; height:38px; border-radius:50%;
  background:var(--wa-verde); color:#fff;
  display:grid; place-items:center; font-size:18px;
}
.voice-txt{ display:flex; flex-direction:column; line-height:1.3; }
.voice-txt b{ font-size:15px; }
.voice-txt small{ color:var(--wa-suave); font-size:12.5px; }

.rec{
  display:flex; align-items:center; gap:11px;
  padding:10px 11px 10px 14px; border-radius:14px;
  background:var(--wa-salida); color:var(--wa-texto);
  box-shadow:0 1px 2px rgba(11,20,26,.14);
}
.rec-dot{
  flex:none; width:11px; height:11px; border-radius:50%; background:#ff3b3b;
  animation:latido 1.1s ease-in-out infinite;
}
@keyframes latido{ 0%,100%{ opacity:1; transform:scale(1); } 50%{ opacity:.35; transform:scale(.8); } }
.rec-time{ flex:none; font-size:15px; font-weight:600; font-variant-numeric:tabular-nums; min-width:42px; }
.rec-wave{ flex:1; display:flex; align-items:center; justify-content:center; gap:3px; height:28px; }
.rec-wave i{
  display:block; width:3px; height:4px; border-radius:2px;
  background:var(--wa-verde-2); transition:height .08s linear;
}
.rec-cancel{
  flex:none; width:32px; height:32px; border-radius:50%;
  border:1px solid rgba(17,27,33,.18); background:transparent; color:var(--wa-suave);
  font-size:18px; line-height:1; cursor:pointer;
}
.rec-cancel:hover{ color:#c0392b; border-color:#c0392b; }
.rec-stop{
  flex:none; border:0; border-radius:999px; padding:9px 20px;
  background:var(--wa-verde); color:var(--on-accent); font:inherit; font-size:14.5px; font-weight:700; cursor:pointer;
}
.rec-stop:hover{ background:var(--wa-verde-2); }

.voice-aviso{
  margin:0; padding:11px 13px; border-radius:14px;
  background:var(--wa-burbuja); color:var(--wa-texto);
  border-left:3px solid #e0a000;
  font-size:13px; line-height:1.5;
  box-shadow:0 1px 2px rgba(11,20,26,.14);
}

/* Notas ya grabadas */
.notalist{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px; }
.notalist:empty{ display:none; }
.notalist li{
  display:flex; align-items:center; gap:9px;
  padding:8px 10px; border-radius:14px;
  background:var(--wa-burbuja); color:var(--wa-texto);
  box-shadow:0 1px 2px rgba(11,20,26,.14);
}
.notalist .na-ic{ flex:none; font-size:16px; }
.notalist audio{ flex:1; min-width:0; height:34px; color-scheme:light; }
.notalist .na-x{
  flex:none; border:0; background:transparent; color:var(--wa-suave);
  font-size:19px; line-height:1; cursor:pointer; padding:0 3px;
}
.notalist .na-x:hover{ color:#c0392b; }

/* ---------- Lista de archivos ---------- */
.filelist{ list-style:none; margin:12px 0 0; padding:0; display:flex; flex-direction:column; gap:8px; }
.filelist li{
  display:flex; flex-direction:column; gap:9px;
  padding:11px 13px; background:var(--panel); border:1px solid var(--line); border-radius:var(--r);
  font-size:14px;
}
.fi-top{ display:flex; align-items:center; gap:11px; }
.filelist audio{ width:100%; height:34px; color-scheme:inherit; }
.fi-ic{ font-size:17px; flex:none; }
.fi-n{ flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.fi-s{ color:var(--muted); font-size:12.5px; flex:none; font-variant-numeric:tabular-nums; }
.fi-x{ flex:none; border:0; background:transparent; color:var(--muted); font-size:18px; cursor:pointer; padding:0 2px; line-height:1; }
.fi-x:hover{ color:var(--danger); }

/* ---------- Resumen ---------- */
.summary{ display:flex; flex-direction:column; gap:1px; background:var(--line-soft); border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; }
.sum-row{ display:flex; align-items:flex-start; gap:12px; padding:14px 16px; background:var(--panel); }
.sum-k{ flex:none; width:96px; font-size:12.5px; font-weight:600; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; padding-top:2px; }
.sum-v{ flex:1; font-size:14.5px; min-width:0; word-wrap:break-word; }
.sum-v.empty{ color:#9aa3ab; font-style:italic; }
.sum-edit{ flex:none; border:0; background:transparent; color:var(--accent-ink); font:inherit; font-size:12.5px; font-weight:600; cursor:pointer; padding:2px 0; }
.sum-thumbs{ display:flex; gap:6px; margin-top:7px; }
.sum-thumbs img{ width:46px; height:46px; object-fit:cover; border-radius:8px; border:1px solid var(--line); }
.sum-dots{ display:inline-flex; gap:5px; vertical-align:middle; margin-left:4px; }
.sum-dots i{ width:15px; height:15px; border-radius:50%; border:1px solid var(--contorno); display:block; }

.send-box{ margin-top:26px; }
.send-how{
  font-size:13.5px; color:var(--muted); line-height:1.55;
  background:var(--panel); border:1px solid var(--line); border-left:3px solid var(--accent);
  border-radius:12px; padding:13px 15px; margin:0 0 16px;
}
.send-how b{ color:var(--text); }
.alt-actions{ display:flex; gap:8px; justify-content:center; flex-wrap:wrap; margin-top:14px; }

/* ---------- Botones ---------- */
.btn{
  border:0; border-radius:var(--r); font:inherit; font-size:16px; font-weight:600;
  padding:15px 26px; cursor:pointer; transition:transform .14s, opacity .18s, background .18s;
}
.btn:active{ transform:scale(.97); }
.btn.primary{ background:linear-gradient(135deg,var(--accent),var(--accent-2)); color:var(--on-accent); box-shadow:0 8px 20px -10px rgba(10,122,66,.6); }
.btn.ghost{ background:var(--panel); color:var(--muted); border:1px solid var(--line); }
.btn.big{ width:100%; padding:17px; font-size:17px; }
.btn[hidden]{ display:none; }

.btn-mini{
  background:transparent; border:1px solid var(--line); color:var(--muted);
  border-radius:999px; padding:9px 16px; font:inherit; font-size:13.5px; font-weight:500; cursor:pointer;
  transition:all .16s;
}
.btn-mini:hover{ color:var(--text); border-color:var(--muted); }
.btn-mini.danger:hover{ color:var(--danger); border-color:var(--danger); }

/* ---------- Nav inferior ---------- */
.nav{
  position:fixed; left:0; right:0; bottom:0; z-index:20;
  height:var(--navbar);
  display:flex; align-items:center; gap:10px;
  padding:0 18px calc(env(safe-area-inset-bottom,0px) * .6);
  background:var(--velo); backdrop-filter:blur(14px);
  border-top:1px solid var(--line-soft);
}
.nav-inner{
  display:flex; align-items:center; gap:10px;
  width:100%; max-width:680px; margin:0 auto; height:100%;
}
.nav .btn.ghost{ flex:none; }
.nav .btn.primary{ flex:1; }

/* ---------- Toast ---------- */
.toast{
  position:fixed; left:50%; bottom:calc(var(--navbar) + 16px); z-index:40;
  transform:translate(-50%,14px);
  background:var(--aviso-bg); color:var(--aviso-tx); border:1px solid var(--aviso-bg);
  padding:12px 18px; border-radius:999px; font-size:14px; font-weight:500;
  box-shadow:0 14px 34px -14px var(--sombra);
  opacity:0; pointer-events:none; transition:opacity .24s, transform .24s;
  max-width:88vw; text-align:center;
}
.toast.show{ opacity:1; transform:translate(-50%,0); }

/* ---------- Subida ---------- */
.hp{ position:absolute; left:-9999px; width:1px; height:1px; opacity:0; }
.progreso{ margin-top:14px; }
.barra{
  height:8px; border-radius:999px; background:var(--panel-2);
  border:1px solid var(--line); overflow:hidden;
}
.barra i{
  display:block; height:100%; width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transition:width .25s ease;
}
.progreso-txt{ margin:8px 0 0; font-size:13px; color:var(--muted); text-align:center; }

.enviado{ text-align:center; padding:8px 0 0; }
.enviado h2{
  font-family:"Archivo","Arial Black",sans-serif;
  font-weight:900; font-stretch:125%; text-transform:uppercase;
  font-size:24px; letter-spacing:-.015em; margin:0 0 6px;
}
.enviado .sub{ margin:0 0 20px; }
.enviado .btn.primary{ display:block; text-decoration:none; text-align:center; }

/* ---------- Pantalla final ---------- */
.done{ text-align:center; padding:50px 0 20px; }
.done-ic{
  width:76px; height:76px; margin:0 auto 22px; border-radius:50%;
  background:linear-gradient(135deg,var(--ok),var(--accent-2)); color:var(--on-accent);
  display:grid; place-items:center; font-size:36px; font-weight:700;
  box-shadow:0 0 44px -8px rgba(61,220,132,.6);
}

/* ---------- Escritorio ---------- */
@media(min-width:681px){
  main{ padding-top:40px; }
  .cards{ grid-template-columns:repeat(3,1fr); }
  .palettes{ grid-template-columns:repeat(6,1fr); }
}