/**
 * pwa-install.css — Plan Oro | Estilos Premium del Botón PWA
 * =========================================================================
 * Mobile First: base = móvil, @media (min-width: 768px) = tablet+
 *
 * Componentes:
 *   .btn-pwa-premium    — Botón de instalación Android/Desktop
 *   #ios-install-prompt  — Prompt de instalación para iOS
 * =========================================================================
 */

/* ═══════════════════════════════════════════════════════════════════════════
   BOTÓN PWA PREMIUM — Gradiente dorado con micro-animaciones
   ═══════════════════════════════════════════════════════════════════════════ */

.btn-pwa-premium {
    /* Layout */
    display: none; /* Oculto por defecto; JS lo muestra con display:flex */
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 320px;
    margin: 14px auto 0;
    padding: 13px 24px;

    /* Tipografía */
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: #1a1a1a;

    /* Fondo dorado degradado */
    background: linear-gradient(135deg, #d4af37 0%, #f5d76e 45%, #d4af37 100%);
    background-size: 200% 200%;

    /* Bordes y forma */
    border: 2px solid rgba(212, 175, 55, 0.6);
    border-radius: 50px;
    cursor: pointer;
    outline: none;

    /* Sombra gold */
    box-shadow:
        0 4px 18px rgba(212, 175, 55, 0.35),
        0 1px 3px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.35);

    /* Transiciones suaves */
    transition:
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.3s ease,
        background-position 0.6s ease,
        filter 0.3s ease;

    /* Rendimiento */
    will-change: transform, box-shadow;
    -webkit-tap-highlight-color: transparent;

    /* Animación de brillo sutil */
    animation: pwaShimmer 3s ease-in-out infinite;
}

/* ── Emoji del botón ─────────────────────────────────────────────────────── */
.btn-pwa-premium .pwa-icon {
    font-size: 1.2em;
    line-height: 1;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.15));
}

/* ── Hover (desktop) ─────────────────────────────────────────────────────── */
.btn-pwa-premium:hover {
    transform: translateY(-2px) scale(1.03);
    background-position: 100% 100%;
    box-shadow:
        0 8px 28px rgba(212, 175, 55, 0.5),
        0 2px 6px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    filter: brightness(1.08);
}

/* ── Active / Tap ────────────────────────────────────────────────────────── */
.btn-pwa-premium:active {
    transform: translateY(1px) scale(0.97);
    box-shadow:
        0 2px 8px rgba(212, 175, 55, 0.3),
        inset 0 2px 4px rgba(0, 0, 0, 0.15);
    transition-duration: 100ms;
    filter: brightness(0.95);
}

/* ── Focus visible (accesibilidad) ───────────────────────────────────────── */
.btn-pwa-premium:focus-visible {
    outline: 3px solid rgba(212, 175, 55, 0.7);
    outline-offset: 3px;
}

/* ── Animación: brillo ondulante ─────────────────────────────────────────── */
@keyframes pwaShimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   iOS INSTALL PROMPT — Glassmorphism
   ═══════════════════════════════════════════════════════════════════════════ */

#ios-install-prompt {
    position: fixed;
    bottom: 90px; /* Por encima del menú */
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    width: calc(100% - 32px);
    max-width: 380px;

    /* Animación de entrada */
    animation: iosSlideUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.ios-content {
    position: relative;
    padding: 18px 20px;

    /* Glassmorphism */
    background: rgba(30, 30, 30, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 16px;

    /* Sombra */
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);

    /* Tipografía */
    color: rgba(255, 255, 255, 0.9);
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    font-size: 0.85rem;
    line-height: 1.5;
    text-align: center;
}

.ios-content p {
    margin: 0 0 6px;
}

.ios-content strong {
    color: #d4af37;
    font-weight: 700;
}

.ios-content img {
    width: 20px;
    vertical-align: middle;
    filter: brightness(0) invert(1);
    margin: 0 2px;
}

/* Botón cerrar del prompt iOS */
.ios-close {
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s ease, transform 0.2s ease;
    padding: 4px;
}

.ios-close:hover {
    color: #d4af37;
    transform: scale(1.15);
}

@keyframes iosSlideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   TABLET / DESKTOP — @media (min-width: 768px)
   ═══════════════════════════════════════════════════════════════════════════ */

@media (min-width: 768px) {
    .btn-pwa-premium {
        max-width: 360px;
        padding: 14px 32px;
        font-size: 0.95rem;
        letter-spacing: 1.5px;
    }

    #ios-install-prompt {
        max-width: 420px;
        bottom: 100px;
    }

    .ios-content {
        padding: 22px 28px;
        font-size: 0.9rem;
    }
}