/* Portal de materiales — ver _web/DESIGN.md. Paleta del DESIGN.md raíz §4. */
:root {
  --azul: #003F72; --azul-oscuro: #001F40; --azul-medio: #1C5FA8;
  --azul-claro: #EBF2FA; --azul-sel: #D6E4F5; --azul-texto: #CADCF2;
  --verde: #1C6B3A; --rojo: #B52020; --naranja: #B85A00;
  --tinta: #1A1A1A; --gris: #4A4A4A; --gris-suave: #6F6F6F;
  --borde: #DADCE0; --fondo: #F4F6F9; --superficie: #FFFFFF; --hover: var(--azul-claro);
  --t-pptx: #D24726; --t-pdf: #C5221F; --t-docx: #2B579A;
  --sombra: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
  --sombra-alta: 0 8px 24px rgba(16,24,40,.14);
  --radio: 12px;
  --f-texto: "Calibri", "Carlito", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
             "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --curva: cubic-bezier(.2,.8,.2,1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --tinta: #E6EDF5; --gris: #B7C2CF; --gris-suave: #8D99A8; --borde: #2A3646;
    --fondo: #0F1722; --superficie: #18222F; --hover: #1F2C3C; --azul-sel: #20385A;
    --azul: #8DB8E8; --azul-medio: #6EA3E0; --azul-claro: #1B2A3D;
    --sombra: 0 1px 2px rgba(0,0,0,.4); --sombra-alta: 0 8px 24px rgba(0,0,0,.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --tinta: #E6EDF5; --gris: #B7C2CF; --gris-suave: #8D99A8; --borde: #2A3646;
  --fondo: #0F1722; --superficie: #18222F; --hover: #1F2C3C; --azul-sel: #20385A;
  --azul: #8DB8E8; --azul-medio: #6EA3E0; --azul-claro: #1B2A3D;
  --sombra: 0 1px 2px rgba(0,0,0,.4); --sombra-alta: 0 8px 24px rgba(0,0,0,.5);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; font-family: var(--f-texto); font-size: 15px; line-height: 1.45; color: var(--tinta); background: var(--fondo); -webkit-font-smoothing: antialiased; }
button, input { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
svg { display: block; width: 20px; height: 20px; stroke-width: 1.75; flex: none; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--azul-medio); outline-offset: 2px; border-radius: 6px; }
[lang="zh-Hans"] { font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif; }

/* Barra superior */
.barra { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 16px; height: 64px; padding: 0 16px; background: var(--superficie); border-bottom: 1px solid var(--borde); }
.marca { display: flex; align-items: center; gap: 12px; min-width: 0; }
.logo { height: 30px; width: auto; }
.logo-oscuro { display: none; }
:root[data-theme="dark"] .logo-claro { display: none; }
:root[data-theme="dark"] .logo-oscuro { display: block; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .logo-claro { display: none; } :root:not([data-theme="light"]) .logo-oscuro { display: block; } }
.marca-txt { display: flex; flex-direction: column; font-weight: 700; color: var(--azul); font-size: 17px; line-height: 1.1; border-left: 1px solid var(--borde); padding-left: 12px; }
.marca-txt small { font-weight: 400; color: var(--gris-suave); font-size: 12px; }
.buscador { flex: 1; max-width: 720px; margin: 0 auto; display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 14px; border-radius: 24px; background: var(--fondo); border: 1px solid transparent; transition: background .15s, box-shadow .15s; }
.buscador:focus-within { background: var(--superficie); box-shadow: var(--sombra-alta); border-color: var(--borde); }
.buscador span { color: var(--gris-suave); }
.buscador input { flex: 1; min-width: 0; border: 0; background: none; outline: none; font-size: 16px; }
kbd { font-family: var(--f-texto); font-size: 12px; color: var(--gris-suave); border: 1px solid var(--borde); border-radius: 5px; padding: 1px 6px; }
.acciones { display: flex; gap: 4px; }
.icono-btn { display: inline-grid; place-items: center; width: 44px; height: 44px; border: 0; border-radius: 50%; background: none; cursor: pointer; color: var(--gris); }
.icono-btn:hover { background: var(--hover); }

/* Estructura */
.cuerpo { display: flex; min-height: calc(100vh - 64px); }
.lateral { width: 264px; flex: none; padding: 12px 12px 24px 8px; position: sticky; top: 64px; height: calc(100vh - 64px); overflow-y: auto; }
.nav-titulo { margin: 16px 16px 6px; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--gris-suave); }
.nav-item { display: flex; align-items: center; gap: 12px; min-height: 40px; padding: 6px 12px 6px 16px; border-radius: 0 20px 20px 0; color: var(--gris); }
.nav-item:hover { background: var(--hover); }
.nav-item[aria-current="page"] { background: var(--azul-sel); color: var(--azul); font-weight: 700; }
.nav-item .n { margin-left: auto; font-size: 12px; color: var(--gris-suave); font-weight: 400; }
.nav-item .nav-txt { display: flex; flex-direction: column; min-width: 0; }
.nav-item .nav-txt small { font-size: 12px; font-weight: 400; color: var(--gris-suave); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lateral-pie { margin: 24px 16px 0; font-size: 12px; color: var(--gris-suave); }
.principal { flex: 1; min-width: 0; padding: 8px 24px 48px; outline: none; }
.velo { position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 25; }

/* Migas y cabecera de carpeta */
.migas { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; min-height: 48px; font-size: 20px; color: var(--gris); }
.migas a { padding: 4px 10px; border-radius: 8px; }
.migas a:hover { background: var(--hover); }
.migas .actual { padding: 4px 10px; color: var(--tinta); }
.migas svg { width: 18px; height: 18px; color: var(--gris-suave); }
.cabecera { margin: 4px 10px 20px; }
.cabecera p { margin: 0; color: var(--gris); }
.seccion-t { margin: 24px 10px 12px; font-size: 14px; font-weight: 700; color: var(--gris); }

/* Chips */
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 10px 20px; }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 14px; border-radius: 9px; border: 1px solid var(--borde); background: var(--superficie); cursor: pointer; font-size: 14px; color: var(--gris); }
.chip svg { width: 16px; height: 16px; }
.chip:hover { background: var(--hover); }
.chip[aria-pressed="true"] { background: var(--azul-sel); border-color: transparent; color: var(--azul); font-weight: 700; }

/* Carpetas */
.carpetas { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.carpeta { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: var(--radio); background: var(--superficie); border: 1px solid var(--borde); transition: background .15s, box-shadow .15s; }
.carpeta:hover { background: var(--hover); box-shadow: var(--sombra); }
.carpeta .ico { color: var(--azul-medio); }
.carpeta .ico svg { width: 26px; height: 26px; }
.carpeta .num { display: grid; place-items: center; width: 42px; height: 42px; flex: none; border-radius: 10px; background: var(--azul-oscuro); color: #fff; font-weight: 700; font-size: 18px; }
.carpeta .txt { min-width: 0; display: flex; flex-direction: column; }
.carpeta strong { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.carpeta small { color: var(--gris-suave); font-size: 13px; }

/* Ficheros: cuadrícula */
.ficheros { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); gap: 16px; }
.fichero { display: flex; flex-direction: column; border-radius: var(--radio); background: var(--superficie); border: 1px solid var(--borde); overflow: hidden; cursor: pointer; text-align: left; padding: 0; transition: box-shadow .15s var(--curva), transform .15s var(--curva); }
.fichero:hover { box-shadow: var(--sombra-alta); transform: translateY(-2px); }
.fichero .cab { display: flex; align-items: center; gap: 10px; padding: 12px 12px 10px; min-height: 52px; }
.fichero .cab strong { font-size: 14px; line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tipo { display: grid; place-items: center; width: 24px; height: 24px; flex: none; border-radius: 5px; color: #fff; }
.tipo svg { width: 16px; height: 16px; stroke-width: 2; }
.tipo.pptx { background: var(--t-pptx); } .tipo.pdf { background: var(--t-pdf); } .tipo.docx { background: var(--t-docx); }
.miniatura { position: relative; margin: 0 10px; aspect-ratio: 16 / 10; border-radius: 6px; overflow: hidden; background: var(--fondo); display: grid; place-items: center; }
.miniatura img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.miniatura.vertical img { object-fit: cover; object-position: top center; }
.miniatura .cuenta { position: absolute; right: 8px; bottom: 8px; padding: 2px 8px; border-radius: 10px; background: rgba(0,0,0,.66); color: #fff; font-size: 12px; }
.fichero .pie { display: flex; align-items: center; gap: 6px; padding: 10px 12px 12px; font-size: 12px; color: var(--gris-suave); }
.fichero .pie svg { width: 15px; height: 15px; }
.fichero .pie span { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Ficheros: lista */
.lista { width: 100%; border-collapse: collapse; background: var(--superficie); border: 1px solid var(--borde); border-radius: var(--radio); overflow: hidden; }
.lista th { text-align: left; font-size: 13px; font-weight: 700; color: var(--gris); padding: 10px 14px; border-bottom: 1px solid var(--borde); }
.lista td { padding: 8px 14px; border-bottom: 1px solid var(--borde); font-size: 14px; color: var(--gris); }
.lista tr:last-child td { border-bottom: 0; }
.lista tbody tr { cursor: pointer; }
.lista tbody tr:hover { background: var(--hover); }
.lista .nom { display: flex; align-items: center; gap: 12px; color: var(--tinta); font-weight: 700; }
.lista .mini { width: 64px; height: 36px; object-fit: cover; object-position: top; border-radius: 4px; border: 1px solid var(--borde); }

/* Resultados de búsqueda */
.resultados { display: flex; flex-direction: column; gap: 8px; }
.resultado { display: flex; gap: 16px; align-items: center; padding: 10px; border-radius: var(--radio); background: var(--superficie); border: 1px solid var(--borde); cursor: pointer; text-align: left; width: 100%; }
.resultado:hover { background: var(--hover); }
.resultado img { width: 160px; aspect-ratio: 16/9; object-fit: cover; object-position: top; border-radius: 6px; border: 1px solid var(--borde); flex: none; }
.resultado .txt { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.resultado .meta { font-size: 13px; color: var(--gris-suave); display: flex; gap: 8px; align-items: center; }
.resultado p { margin: 0; font-size: 14px; color: var(--gris); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
mark { background: #FFE58A; color: #1A1A1A; border-radius: 2px; padding: 0 1px; }
.vacio { margin: 64px auto; text-align: center; color: var(--gris); max-width: 420px; }
.vacio svg { width: 48px; height: 48px; margin: 0 auto 12px; color: var(--gris-suave); }

/* Visor */
.visor { position: fixed; inset: 0; z-index: 50; display: flex; flex-direction: column; background: #0E131A; color: #E8EDF3; animation: entrar .2s var(--curva); }
@keyframes entrar { from { opacity: 0; transform: scale(.985); } }
.v-barra { display: flex; align-items: center; gap: 10px; height: 60px; padding: 0 12px; flex: none; }
.v-barra .icono-btn { color: #E8EDF3; }
.v-barra .icono-btn:hover { background: rgba(255,255,255,.1); }
.v-titulo { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.2; }
.v-titulo strong { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.v-titulo span { font-size: 13px; color: #9AA7B6; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.v-pagina { font-size: 14px; color: #C9D2DD; padding: 4px 12px; border-radius: 14px; background: rgba(255,255,255,.08); white-space: nowrap; }
.v-cuerpo { flex: 1; min-height: 0; display: flex; }
.v-tira { width: 196px; flex: none; margin: 0; padding: 8px 12px 24px; list-style: none; overflow-y: auto; counter-reset: s; }
.v-tira li { margin-bottom: 12px; }
.v-tira button { display: flex; gap: 8px; align-items: flex-start; width: 100%; padding: 0; border: 0; background: none; cursor: pointer; color: #9AA7B6; font-size: 12px; }
.v-tira img { width: 148px; border-radius: 4px; border: 2px solid transparent; background: #fff; }
.v-tira button[aria-current="true"] { color: #fff; }
.v-tira button[aria-current="true"] img { border-color: #8DB8E8; }
.v-escena { position: relative; flex: 1; min-width: 0; display: grid; place-items: center; padding: 8px 64px 24px; }
.v-escena img { max-width: 100%; max-height: 100%; border-radius: 4px; box-shadow: 0 10px 40px rgba(0,0,0,.5); background: #fff; animation: fundido .15s ease-out; }
.v-escena.vertical { overflow-y: auto; place-items: start center; }
.v-escena.vertical img { max-height: none; max-width: min(100%, 900px); }
@keyframes fundido { from { opacity: .4; } }
.v-nav { position: absolute; top: 50%; translate: 0 -50%; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; border: 0; cursor: pointer; background: rgba(255,255,255,.1); color: #fff; }
.v-nav:hover { background: rgba(255,255,255,.2); }
.v-nav:disabled { opacity: .25; cursor: default; }
.v-prev { left: 8px; } .v-next { right: 8px; }
.visor:fullscreen .v-barra, .visor:fullscreen .v-tira, .visor:fullscreen .v-nav { display: none; }
.visor:fullscreen { background: #000; }
.visor:fullscreen .v-escena { padding: 0; }
.visor:fullscreen .v-escena img { max-height: 100vh; border-radius: 0; box-shadow: none; }

/* Móvil */
.solo-movil { display: none; }
@media (max-width: 900px) {
  .solo-movil { display: inline-grid; }
  .solo-escritorio, .marca-txt, .logo { display: none !important; }
  .barra { gap: 8px; padding: 0 8px; }
  .lateral { position: fixed; z-index: 30; left: 0; top: 0; height: 100vh; background: var(--superficie); box-shadow: var(--sombra-alta); transform: translateX(-100%); transition: transform .2s var(--curva); padding-top: 16px; }
  .lateral.abierto { transform: none; }
  .principal { padding: 4px 16px 40px; }
  .migas { font-size: 17px; }
  .ficheros { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
  .v-tira { display: none; }
  .v-escena { padding: 4px 4px 16px; }
  .v-escena { padding-bottom: 84px; }
  .v-nav { top: auto; bottom: 16px; translate: none; width: 52px; height: 52px; }
  .v-prev { left: calc(50% - 64px); } .v-next { right: calc(50% - 64px); }
  .resultado img { width: 112px; }
  .lista .col-opc { display: none; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }