/* ═══════════════════════════════════════════════
   Spectrum Studio — Portal de entregas privadas
   Paleta: negro cálido / marfil / coral
   Tipografía: Quicksand (Light 300, Regular 400, Medium 500)
   ═══════════════════════════════════════════════ */

:root {
    --negro:       #13110F;
    --marfil:      #F5F2EC;
    --hueso:       #F4F1EB;
    --coral:       #F0997B;
    --coral-hondo: #D85A30;
    --texto-claro: #c8c0b8;
    --radio:       3px;
    --trans:       0.35s ease;
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: 'Quicksand', sans-serif;
    font-weight: 400;
    background: var(--negro);
    color: var(--marfil);
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
img { display: block; max-width: 100%; }

/* ── Wordmark  ── */
.wordmark {
    display: inline-flex;
    align-items: baseline;
    font-weight: 300;
    font-size: 2rem;
    letter-spacing: .08em;
    line-height: 1;
}
.wordmark-texto { color: var(--marfil); }
.wordmark-blanco .wordmark-texto { color: var(--marfil); }

/* El punto coral es el sello */
.punto-coral { color: var(--coral-hondo); }

/* Isotipo S. en el header */
.isotipo-s { color: var(--negro); font-weight: 300; font-size: 1.4rem; }
.pagina-galeria .isotipo-s { color: var(--negro); }
.header-isotipo { display: inline-flex; align-items: baseline; }

/* ── Línea de espectro ── */
.linea-espectro {
    display: block;
    width: min(320px, 80vw);
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--coral) 20%,
        var(--coral-hondo) 50%,
        var(--coral) 80%,
        transparent 100%
    );
    margin: 1.5rem auto;
    opacity: .8;
}


/* ══════════════════════════════════════════════════
   PANTALLA DE ACCESO  (index.php)
   ══════════════════════════════════════════════════ */

.pagina-acceso {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--negro);
}

.acceso-contenedor {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 100%;
    max-width: 360px;
    padding: 2rem 1.5rem;
    animation: fadeUp .6s ease both;
}

.acceso-contenedor .wordmark { font-size: 2.4rem; margin-bottom: .25rem; }

.acceso-subtitulo {
    font-weight: 400;
    font-size: .65rem;
    letter-spacing: .5em;
    color: var(--texto-claro);
    margin-bottom: 0;
}

.form-acceso {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: .75rem;
    margin-top: .5rem;
}

.campo-grupo { width: 100%; }

.campo-texto {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(245, 242, 236, .25);
    color: var(--marfil);
    font-family: 'Quicksand', sans-serif;
    font-weight: 400;
    font-size: .95rem;
    padding: .75rem .25rem;
    outline: none;
    transition: border-color var(--trans);
    letter-spacing: .03em;
}

.campo-texto::placeholder { color: rgba(245, 242, 236, .35); }
.campo-texto:focus { border-bottom-color: var(--coral); }

.mensaje-error {
    font-size: .8rem;
    color: var(--coral);
    text-align: center;
    letter-spacing: .02em;
}

.mensaje-aviso {
    font-size: .8rem;
    color: var(--texto-claro);
    text-align: center;
    margin-bottom: .25rem;
}

.boton-entrar {
    margin-top: .5rem;
    width: 100%;
    padding: .85rem 1rem;
    background: transparent;
    border: 1px solid rgba(245, 242, 236, .2);
    border-radius: var(--radio);
    color: var(--marfil);
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: .9rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    transition: border-color var(--trans), background var(--trans);
}
.boton-entrar:hover, .boton-entrar:focus-visible {
    border-color: var(--coral);
    background: rgba(240, 153, 123, .08);
    outline: none;
}

.acceso-slogan {
    margin-top: 1rem;
    font-size: .7rem;
    letter-spacing: .2em;
    color: rgba(245, 242, 236, .25);
    text-transform: uppercase;
}


/* ══════════════════════════════════════════════════
   PANTALLA DE BIENVENIDA  (bienvenida.php)
   ══════════════════════════════════════════════════ */

.pagina-bienvenida {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portada-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
}

.portada-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    filter: brightness(.55) saturate(.8);
}

.portada-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(19, 17, 15, .3) 0%,
        rgba(19, 17, 15, .65) 100%
    );
}

.portada-bg-vacia {
    background: var(--negro);
}

.bienvenida-contenido {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 3rem 2rem;
    max-width: 640px;
    width: 100%;
    animation: fadeUp .8s ease both;
}

.bienvenida-saludo {
    font-weight: 300;
    font-size: 1rem;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--marfil);
    opacity: .7;
    margin-bottom: 1rem;
}

.bienvenida-cliente {
    font-weight: 300;
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    letter-spacing: .04em;
    color: var(--marfil);
    line-height: 1.1;
    margin-bottom: .6rem;
}

.bienvenida-subtitulo {
    font-weight: 400;
    font-size: .9rem;
    letter-spacing: .15em;
    color: var(--texto-claro);
    text-transform: uppercase;
    margin-bottom: 1.4rem;
}

.bienvenida-contenido .wordmark {
    font-size: 1.6rem;
    margin-bottom: .3rem;
}

.bienvenida-slogan {
    font-size: .75rem;
    letter-spacing: .2em;
    color: rgba(245, 242, 236, .45);
    text-transform: uppercase;
    margin-bottom: 0;
}

.bienvenida-contador {
    font-size: .85rem;
    font-weight: 300;
    color: var(--coral);
    letter-spacing: .1em;
    margin-top: .5rem;
    margin-bottom: 1.75rem;
}

.boton-ver-galeria {
    display: inline-block;
    padding: .9rem 2.8rem;
    border: 1px solid rgba(245, 242, 236, .35);
    border-radius: var(--radio);
    color: var(--marfil);
    font-family: 'Quicksand', sans-serif;
    font-weight: 500;
    font-size: .85rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    transition: border-color var(--trans), background var(--trans);
}
.boton-ver-galeria:hover {
    border-color: var(--coral);
    background: rgba(240, 153, 123, .1);
}

.boton-logout-flotante {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 10;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(245, 242, 236, .4);
    transition: color var(--trans);
}
.boton-logout-flotante:hover { color: var(--coral); }


/* ══════════════════════════════════════════════════
   GALERÍA  (galeria.php)
   ══════════════════════════════════════════════════ */

.pagina-galeria {
    background: var(--hueso);
    color: var(--negro);
    min-height: 100vh;
}

/* Header */
.galeria-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .9rem 1.5rem;
    background: rgba(244, 241, 235, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(19, 17, 15, .08);
}

.header-isotipo {
    font-size: 1.3rem;
    font-weight: 300;
    flex-shrink: 0;
    color: var(--negro);
    transition: opacity var(--trans);
}
.header-isotipo:hover { opacity: .6; }
.header-isotipo .punto-coral { color: var(--coral-hondo); }
.header-isotipo .isotipo-s { color: var(--negro); }

.header-cliente {
    font-size: .8rem;
    font-weight: 500;
    letter-spacing: .08em;
    color: var(--negro);
    opacity: .6;
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-acciones {
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-shrink: 0;
}

.boton-zip {
    display: flex;
    align-items: center;
    gap: .45rem;
    padding: .55rem 1.1rem;
    border: 1px solid rgba(19, 17, 15, .2);
    border-radius: var(--radio);
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .08em;
    color: var(--negro);
    transition: border-color var(--trans), background var(--trans);
    white-space: nowrap;
}
.boton-zip:hover {
    border-color: var(--coral-hondo);
    color: var(--coral-hondo);
    background: rgba(216, 90, 48, .05);
}

.boton-logout-header {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(19, 17, 15, .4);
    transition: color var(--trans);
}
.boton-logout-header:hover { color: var(--coral-hondo); }

/* Grid de fotos — columnas CSS (masonry natural) */
.galeria-grid {
    columns: 2;
    column-gap: 4px;
    padding: 4px;
}

@media (min-width: 560px)  { .galeria-grid { columns: 3; } }
@media (min-width: 900px)  { .galeria-grid { columns: 4; } }
@media (min-width: 1400px) { .galeria-grid { columns: 5; } }

.foto-celda {
    break-inside: avoid;       /* no partir una foto entre columnas */
    display: block;
    margin-bottom: 4px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(19, 17, 15, .08);
    position: relative;
    /* aspect-ratio se aplica por clase según orientación real */
    aspect-ratio: 3 / 2;
}

.foto-celda.portrait { aspect-ratio: 2 / 3; }
.foto-celda.square   { aspect-ratio: 1 / 1; }

.foto-celda img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .5s ease, filter .5s ease;
    will-change: transform;
}

.foto-celda:hover img {
    transform: scale(1.04);
    filter: brightness(.88);
}

/* Indicador de carga e fin */
.galeria-cargando {
    display: flex;
    justify-content: center;
    padding: 3rem 1rem;
}

.galeria-fin {
    text-align: center;
    padding: 3rem 1rem;
    font-size: .75rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: rgba(19, 17, 15, .3);
}

/* Spinner */
.spinner {
    width: 28px;
    height: 28px;
    border: 2px solid rgba(19, 17, 15, .15);
    border-top-color: var(--coral-hondo);
    border-radius: 50%;
    animation: girar .7s linear infinite;
}

.pagina-bienvenida .spinner,
.lightbox .spinner {
    border-color: rgba(245, 242, 236, .15);
    border-top-color: var(--coral);
}


/* ══════════════════════════════════════════════════
   LIGHTBOX
   ══════════════════════════════════════════════════ */

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(19, 17, 15, .97);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}

.lightbox.activo {
    opacity: 1;
    pointer-events: all;
}

.lightbox-contenedor {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: calc(100vw - 120px);
    max-height: calc(100vh - 100px);
}

.lightbox-img {
    max-width: 100%;
    max-height: calc(100vh - 100px);
    object-fit: contain;
    display: block;
    opacity: 0;
    transition: opacity .3s ease;
    user-select: none;
    -webkit-user-drag: none;
}
.lightbox-img.cargada { opacity: 1; }

/* Marca de agua — solo visible en pantalla, no en descarga */
.lightbox-marca-agua {
    position: absolute;
    bottom: 1.2rem;
    right: 1.4rem;
    z-index: 2;
    font-family: 'Quicksand', sans-serif;
    font-weight: 300;
    font-size: .9rem;
    letter-spacing: .08em;
    color: rgba(245, 242, 236, .55);
    pointer-events: none;
    user-select: none;
    text-shadow: 0 1px 4px rgba(0,0,0,.5);
    white-space: nowrap;
}
.lightbox-marca-agua span { color: rgba(216, 90, 48, .7); }

.lightbox-cargando {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

/* Navegación */
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(245, 242, 236, .5);
    transition: color var(--trans);
    padding: .5rem;
}
.lightbox-nav:hover { color: var(--marfil); }
.lightbox-prev { left: .5rem; }
.lightbox-next { right: .5rem; }

.lightbox-cerrar {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(245, 242, 236, .45);
    transition: color var(--trans);
}
.lightbox-cerrar:hover { color: var(--marfil); }

.lightbox-barra {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .9rem 1.5rem;
    background: linear-gradient(transparent, rgba(19,17,15,.7));
}

.lightbox-contador {
    font-size: .78rem;
    color: rgba(245, 242, 236, .4);
    letter-spacing: .08em;
}

.boton-descargar-foto {
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .78rem;
    font-weight: 500;
    letter-spacing: .1em;
    color: rgba(245, 242, 236, .55);
    transition: color var(--trans);
    text-transform: uppercase;
}
.boton-descargar-foto:hover { color: var(--coral); }


/* ══════════════════════════════════════════════════
   ANIMACIONES
   ══════════════════════════════════════════════════ */

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

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


/* ══════════════════════════════════════════════════
   FAVICON SVG (referenciado desde HTML)
   ══════════════════════════════════════════════════ */

/* Scrollbar personalizada (solo webkit) */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--hueso); }
::-webkit-scrollbar-thumb { background: rgba(19,17,15,.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(19,17,15,.4); }

/* Focus visible accesible */
:focus-visible {
    outline: 2px solid var(--coral);
    outline-offset: 3px;
}

/* Responsive bienvenida */
@media (max-width: 480px) {
    .bienvenida-cliente { font-size: 1.9rem; }
    .bienvenida-saludo  { font-size: .85rem; }
    .boton-ver-galeria  { padding: .85rem 2rem; }
    .galeria-header     { padding: .8rem 1rem; }
    .header-cliente     { display: none; }
    .boton-zip span     { display: none; }
    .lightbox-contenedor { max-width: 100vw; max-height: calc(100vh - 80px); }
    .lightbox-nav       { display: none; }
}