/* Alquimia Sistemas · Customizers 3D (mismos colores y letras que el portfolio) */
:root {
  --papel: #f5f1e8; --papel-2: #ece6d8; --tarjeta: #fffdf8;
  --tinta: #1c2220; --tinta-2: #4b5450; --tinta-3: #77807b; --borde: #ddd5c4;
  --verde: #1f5c55; --verde-2: #2b7a70; --verde-suave: #dcebe6;
  --cobre: #b5602e; --cobre-suave: #f4e2d4; --rojo: #b3402e;
  --sombra: 0 1px 2px rgb(28 34 32 / .06), 0 8px 24px rgb(28 34 32 / .08);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Figtree", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --gutter: 16px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --papel: #121716; --papel-2: #182020; --tarjeta: #1a2221;
    --tinta: #ece7dc; --tinta-2: #b9bfb9; --tinta-3: #8a938e; --borde: #2c3735;
    --verde: #6cc0b3; --verde-2: #8fd3c8; --verde-suave: #1d3532;
    --cobre: #e3955f; --cobre-suave: #3a271c; --rojo: #ef8a78;
    --sombra: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px rgb(0 0 0 / .35);
    color-scheme: dark;
  }
}
@media (min-width: 720px) { :root { --gutter: 28px; } }
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--papel); color: var(--tinta); font: 16px/1.55 var(--sans); overflow-x: hidden; }
a { color: var(--verde); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0; letter-spacing: -.01em; }
img { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 3px solid var(--cobre); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

/* barra */
.barra3d { position: sticky; top: 0; z-index: 30; height: 58px; display: flex; align-items: center; gap: 16px; padding: 0 var(--gutter);
  background: color-mix(in srgb, var(--papel) 90%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--borde); }
.marca { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--tinta); font: 600 19px var(--serif); white-space: nowrap; }
.marca svg { width: 28px; height: 28px; flex: none; }
.marca em { font-style: italic; font-weight: 400; color: var(--verde); }
.barra3d nav { margin-left: auto; display: flex; gap: 18px; font-size: 15px; font-weight: 500; }
.barra3d nav a { color: var(--tinta-2); text-decoration: none; }
.barra3d nav a:hover { color: var(--tinta); }
@media (max-width: 420px) { .marca span { display: none; } }

/* botones */
.boton { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 999px;
  font: 600 15px/1.2 var(--sans); text-decoration: none; border: 1.5px solid transparent; cursor: pointer; }
.boton:disabled { opacity: .6; cursor: progress; }
.boton-lleno { background: var(--verde); color: #fff; }
@media (prefers-color-scheme: dark) { .boton-lleno { color: #0f1514; } }
.boton-lleno:hover { background: var(--verde-2); }
.boton-borde { background: var(--tarjeta); color: var(--tinta); border-color: var(--borde); }
.boton-borde:hover { border-color: var(--tinta-3); }
.boton-chico { padding: 7px 13px; font-size: 14px; }

/* editor */
.editor { display: grid; }
.visor { position: sticky; top: 58px; z-index: 10; height: 42vh; min-height: 260px; background: radial-gradient(120% 100% at 50% 0%, var(--tarjeta), var(--papel-2)); border-bottom: 1px solid var(--borde); }
.visor canvas { width: 100%; height: 100%; display: block; touch-action: none; }
.estado { position: absolute; left: 12px; top: 12px; max-width: calc(100% - 24px); font-size: 13.5px; font-weight: 600; padding: 5px 11px; border-radius: 999px;
  background: var(--tarjeta); border: 1px solid var(--borde); color: var(--tinta-2); box-shadow: var(--sombra); }
.estado.ok { color: var(--verde); }
.estado.error { color: var(--rojo); border-color: color-mix(in srgb, var(--rojo) 45%, var(--borde)); }
.estado.trabajando::before { content: ""; display: inline-block; width: 10px; height: 10px; margin-right: 7px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; vertical-align: -1px; animation: gira .8s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }
.medidas { position: absolute; right: 12px; top: 12px; font-size: 12.5px; color: var(--tinta-3); background: color-mix(in srgb, var(--tarjeta) 80%, transparent); padding: 3px 8px; border-radius: 6px; }
.acciones { position: absolute; left: 12px; right: 12px; bottom: 12px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; align-items: center; }
.acciones .centrar { margin-right: auto; }

.panel { padding: 24px var(--gutter) 48px; min-width: 0; }
.miga { font-size: 14px; color: var(--tinta-3); margin: 0 0 10px; }
.miga a { color: var(--tinta-2); }
.panel h1 { font-size: clamp(28px, 4vw, 38px); }
.bajada { color: var(--tinta-2); margin: 10px 0 20px; }
.nota { font-size: 13.5px; color: var(--tinta-3); margin: 8px 0 0; }

@media (min-width: 960px) {
  .editor { grid-template-columns: minmax(360px, 440px) minmax(0, 1fr); min-height: calc(100vh - 58px); }
  .panel { order: 1; border-right: 1px solid var(--borde); padding-top: 28px; }
  .visor { order: 2; top: 58px; height: calc(100vh - 58px); border-bottom: 0; }
}

/* subida de dibujo */
#subida { background: var(--tarjeta); border: 1px dashed var(--borde); border-radius: 14px; padding: 16px; margin-bottom: 18px; }
#subida input[type=file] { position: absolute; width: 1px; height: 1px; opacity: 0; }
#subida input[type=file]:focus-visible + label { outline: 3px solid var(--cobre); outline-offset: 2px; }
.subida-titulo { font-weight: 700; margin: 0 0 10px; }
.subida-nombre { display: inline-block; margin-left: 10px; font-size: 14px; color: var(--tinta-2); word-break: break-all; }

/* formulario */
.pestana { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 14px; margin-bottom: 10px; overflow: hidden; }
.pestana summary { cursor: pointer; padding: 13px 16px; font-weight: 700; list-style: none; display: flex; align-items: center; justify-content: space-between; }
.pestana summary::-webkit-details-marker { display: none; }
.pestana summary::after { content: "+"; font: 400 22px/1 var(--sans); color: var(--tinta-3); }
.pestana[open] summary::after { content: "–"; }
.campos { padding: 2px 16px 16px; display: grid; gap: 14px; }
.campo { display: grid; gap: 6px; }
.campo label { font-size: 14px; color: var(--tinta-2); }
.campo input[type=text], .campo input[type=number], .campo select {
  width: 100%; font: 16px var(--sans); color: var(--tinta); background: var(--papel); border: 1px solid var(--borde); border-radius: 10px; padding: 9px 11px; min-height: 42px; }
.campo input:focus, .campo select:focus { border-color: var(--verde); outline: none; box-shadow: 0 0 0 3px var(--verde-suave); }
.campo input[type=color] { width: 64px; height: 40px; border: 1px solid var(--borde); border-radius: 10px; background: var(--papel); padding: 3px; }
.campo-check { display: flex; align-items: center; gap: 10px; }
.campo-check input { width: 22px; height: 22px; accent-color: var(--verde); flex: none; }
.campo-check label { font-size: 15px; color: var(--tinta); }
.deslizador { display: grid; grid-template-columns: 1fr 92px; gap: 10px; align-items: center; }
.deslizador input[type=range] { width: 100%; accent-color: var(--verde); }
.vector { display: grid; grid-template-columns: repeat(auto-fit, minmax(70px, 1fr)); gap: 8px; }
.pie-panel { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.mensajes { margin-top: 18px; font-size: 14px; color: var(--tinta-3); }
.mensajes pre { white-space: pre-wrap; font-size: 12.5px; background: var(--papel-2); padding: 10px; border-radius: 8px; max-height: 220px; overflow: auto; }

/* galería */
.galeria3d { max-width: 1180px; margin: 0 auto; padding: 40px var(--gutter) 64px; }
.galeria3d .cabeza { max-width: 720px; margin-bottom: 30px; }
.antetitulo { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--cobre); font-weight: 700; margin: 0 0 12px; }
.galeria3d h1 { font-size: clamp(34px, 5.5vw, 54px); }
.galeria3d .cabeza p { color: var(--tinta-2); font-size: 18px; margin: 14px 0 0; }
.tarjetas { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.tarjeta { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 18px; overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: inherit; box-shadow: var(--sombra); transition: transform .15s ease; }
.tarjeta:hover { transform: translateY(-2px); }
.tarjeta img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; background: var(--papel-2); }
.tarjeta div { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.tarjeta h2 { font-size: 22px; margin-bottom: 8px; }
.tarjeta p { color: var(--tinta-2); font-size: 15px; margin: 0 0 16px; flex: 1; }
.tarjeta .ir { color: var(--verde); font-weight: 700; font-size: 15px; }
.como { display: grid; gap: 14px; margin-top: 36px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.como div { border-top: 2px solid var(--borde); padding-top: 12px; color: var(--tinta-2); font-size: 15px; }
.como strong { display: block; color: var(--tinta); font-family: var(--serif); font-size: 19px; font-weight: 600; margin-bottom: 4px; }
.pie3d { border-top: 1px solid var(--borde); padding: 22px var(--gutter) 34px; font-size: 13.5px; color: var(--tinta-3); }
.pie3d p { max-width: 1180px; margin: 0 auto 6px; }
@media (prefers-reduced-motion: reduce) { .tarjeta { transition: none; } .estado.trabajando::before { animation: none; } }