/* ==========================================================================
      Rayitos de Sol — Fondo interactivo premium
      Variables, degradados día/noche y keyframes de sol/luna/nubes/manos.
      Todo el bloque vive en z-index -10 y con pointer-events: none, así que
      nunca interfiere con botones/enlaces reales de la página.
      ========================================================================== */

:root {
    --mr-sky-top-day: #d6f3fb;
    --mr-sky-bottom-day: #fbfeff;
    --mr-sky-top-night: #0f172a;
    --mr-sky-bottom-night: #1e1b4b;

    --mr-cloud-day: #ffffff;
    --mr-cloud-night: #334155;

    --mr-hand-color: #f9c9dd;
    --mr-hand-color-night: #f472b6;

    --mr-thread-day: rgba(244, 114, 182, 0.38);
    --mr-thread-night: rgba(196, 181, 253, 0.55);

    --mr-transition-theme: 1.2s ease;
}

.mr-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100vh;
    height: 100dvh;
    z-index: -10;
    overflow: hidden;
    pointer-events: none;
    /* Fuerza su propia capa de composición: en Safari/iOS los fondos
       "fixed" con z-index negativo a veces no se pintan al hacer scroll
       si no se les da esta pista de aceleración por hardware. */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    will-change: transform;
}

/* ---------- Cielo ---------- */

.mr-sky {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        var(--mr-sky-top-day) 0%,
        var(--mr-sky-bottom-day) 45%,
        #ffffff 60%,
        #ffffff 100%
    );
    transition: background var(--mr-transition-theme);
}

[data-theme="dark"] .mr-sky {
    background: linear-gradient(
        180deg,
        var(--mr-sky-top-night) 0%,
        var(--mr-sky-bottom-night) 45%,
        #ffffff 60%,
        #ffffff 100%
    );
}

.mr-stars {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--mr-transition-theme);
    background-repeat: no-repeat;
    background-image:
        radial-gradient(1.6px 1.6px at 8% 18%, #fff, transparent),
        radial-gradient(1.6px 1.6px at 22% 8%, #fff, transparent),
        radial-gradient(1.2px 1.2px at 34% 26%, #fff, transparent),
        radial-gradient(1.8px 1.8px at 48% 12%, #fff, transparent),
        radial-gradient(1.4px 1.4px at 61% 32%, #fff, transparent),
        radial-gradient(1.6px 1.6px at 73% 15%, #fff, transparent),
        radial-gradient(1.2px 1.2px at 85% 24%, #fff, transparent),
        radial-gradient(1.6px 1.6px at 93% 9%, #fff, transparent),
        radial-gradient(1.2px 1.2px at 15% 45%, #fff, transparent),
        radial-gradient(1.8px 1.8px at 40% 55%, #fff, transparent),
        radial-gradient(1.4px 1.4px at 66% 48%, #fff, transparent),
        radial-gradient(1.6px 1.6px at 80% 60%, #fff, transparent),
        radial-gradient(1.2px 1.2px at 5% 65%, #fff, transparent),
        radial-gradient(1.4px 1.4px at 55% 70%, #fff, transparent),
        radial-gradient(1.6px 1.6px at 90% 75%, #fff, transparent);
    animation: mrTwinkle 5s ease-in-out infinite;
}

[data-theme="dark"] .mr-stars {
    opacity: 1;
}

@keyframes mrTwinkle {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 0.9; }
}

/* ---------- Sol / Snoopy dormido ---------- */

.mr-celestial {
    position: absolute;
    top: 6%;
    left: -30%;
    width: clamp(240px, 27vw, 450px);
    height: clamp(240px, 27vw, 450px);
    will-change: transform, left;
    animation: mrTravel 55s linear infinite;
    /* Por encima de los perritos (z-index:5) para que el sol nunca quede
       tapado si su recorrido llega a cruzarse con ellos. */
    z-index: 6;
}

/* Recorrido de izquierda a derecha dentro del 60% superior (zona de cielo) */
@keyframes mrTravel {
    0% { left: -22%; top: 6%; }
    50% { top: 2%; }
    100% { left: 108%; top: 6%; }
}

@media (max-width: 700px) {
    .mr-celestial {
        animation-duration: 38s;
    }
}

/* El pedido explícito del jardín es que el sol siempre se vea moviéndose,
   incluso con "Reducir movimiento" activado en el teléfono (es un recorrido
   lento y lineal, no un parpadeo/parallax brusco). Lo que sí se sigue
   respetando en JS es el parallax que sigue al mouse/dedo (updateParallax),
   que es el efecto más brusco. */

.mr-sun {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 1;
    transform: scale(1) rotate(0deg);
    transition: opacity var(--mr-transition-theme), transform var(--mr-transition-theme);
    animation: mrBob 7s ease-in-out infinite;
}

[data-theme="dark"] .mr-sun {
    opacity: 0;
    transform: scale(0.85) rotate(8deg);
}

.mr-sun-glow {
    transform-origin: 100px 100px;
    animation: mrSunPulse 4s ease-in-out infinite;
}

@keyframes mrSunPulse {
    0%, 100% { transform: scale(1); opacity: 0.85; }
    50% { transform: scale(1.1); opacity: 1; }
}

@keyframes mrBob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Snoopy dormido de noche: a diferencia del sol, no recorre el cielo —
   se queda quieto a la mitad de la pantalla mientras dura el tema oscuro. */

.mr-night-scene {
    position: absolute;
    top: 50%;
    left: 50%;
    width: clamp(160px, 20vw, 320px);
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--mr-transition-theme);
    z-index: 6;
}

[data-theme="dark"] .mr-night-scene {
    opacity: 1;
}

.mr-snoopy {
    display: block;
    width: 100%;
    height: auto;
    animation: mrBob 8s ease-in-out infinite;
    filter: drop-shadow(0 10px 14px rgba(15, 23, 42, 0.35));
}

.mr-zzz {
    position: absolute;
    top: 0;
    right: 10%;
    font-family: 'Fredoka', sans-serif;
    font-weight: 700;
    color: #c7d2fe;
    text-shadow: 0 0 8px rgba(129, 140, 248, 0.65);
    opacity: 0;
    animation: mrZzzFloat 4s ease-in infinite;
}

.mr-zzz-1 { font-size: 1.5rem; right: 22%; top: 2%; animation-delay: 0s; }
.mr-zzz-2 { font-size: 2rem; right: 10%; top: -6%; animation-delay: 1.3s; }
.mr-zzz-3 { font-size: 1.2rem; right: 32%; top: -12%; animation-delay: 2.6s; }

@keyframes mrZzzFloat {
    0% { opacity: 0; transform: translate(0, 0) scale(0.7); }
    15% { opacity: 0.9; }
    80% { opacity: 0.8; }
    100% { opacity: 0; transform: translate(16px, -36px) scale(1.15); }
}

/* ---------- Nubes (parallax de viento, varias profundidades) ---------- */

.mr-clouds {
    position: absolute;
    inset: 0;
}

.mr-cloud {
    position: absolute;
    fill: var(--mr-cloud-day);
    transition: fill var(--mr-transition-theme);
}

[data-theme="dark"] .mr-cloud {
    fill: var(--mr-cloud-night);
}

.mr-cloud-1 {
    top: 12%;
    width: 220px;
    height: 110px;
    opacity: 0.9;
    filter: blur(0px);
    animation: mrDriftRight 55s linear infinite;
}

.mr-cloud-2 {
    top: 22%;
    width: 150px;
    height: 75px;
    opacity: 0.55;
    filter: blur(0.5px);
    animation: mrDriftLeft 70s linear infinite;
    animation-delay: -12s;
}

.mr-cloud-3 {
    display: none;
}

.mr-cloud-4 {
    top: 45%;
    width: 130px;
    height: 65px;
    opacity: 0.4;
    filter: blur(0.5px);
    animation: mrDriftLeft 40s linear infinite;
    animation-delay: -5s;
}

@keyframes mrDriftRight {
    from { transform: translateX(-25%); }
    to { transform: translateX(125vw); }
}

@keyframes mrDriftLeft {
    from { transform: translateX(125vw); }
    to { transform: translateX(-25%); }
}

/* ---------- Jardín: pasto y flores al pie de la pantalla ----------
   Oculto por ahora: el 40% inferior debe quedar en blanco para el
   video del personaje que se integrará ahí. */

.mr-ground,
.mr-garden {
    display: none;
}

.mr-ground {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 90px;
    fill: #bbf7d0;
    transition: fill var(--mr-transition-theme);
}

[data-theme="dark"] .mr-ground {
    fill: #1e293b;
}

.mr-garden {
    position: absolute;
    bottom: 6px;
    left: 0;
    width: 100%;
    height: 60px;
}

.mr-flower {
    position: absolute;
    bottom: 0;
    width: 34px;
    height: 50px;
    animation: mrFlowerSway 4.5s ease-in-out infinite;
    transform-origin: bottom center;
}

.mr-flower-head circle:not(:first-child) {
    fill: var(--mr-flower-color);
    transition: fill var(--mr-transition-theme);
}

[data-theme="dark"] .mr-flower-head circle:not(:first-child) {
    filter: drop-shadow(0 0 4px var(--mr-flower-color));
}

.mr-flower line {
    transition: stroke var(--mr-transition-theme);
}

[data-theme="dark"] .mr-flower line {
    stroke: #14532d;
}

.mr-flower-1 { left: 6%; --mr-flower-color: #f472b6; animation-delay: 0s; }
.mr-flower-2 { left: 18%; --mr-flower-color: #a78bfa; width: 26px; height: 38px; animation-delay: -1s; }
.mr-flower-3 { left: 34%; --mr-flower-color: #38bdf8; animation-delay: -2.2s; }
.mr-flower-4 { left: 62%; --mr-flower-color: #fbbf24; width: 28px; height: 42px; animation-delay: -0.6s; }
.mr-flower-5 { left: 78%; --mr-flower-color: #f472b6; animation-delay: -3s; }
.mr-flower-6 { left: 91%; --mr-flower-color: #a78bfa; width: 24px; height: 36px; animation-delay: -1.6s; }

@keyframes mrFlowerSway {
    0%, 100% { transform: rotate(-4deg); }
    50% { transform: rotate(4deg); }
}

/* ---------- "Rayito" entrando y saliendo por los costados ---------- */

.mr-rayito {
    position: absolute;
    bottom: 3%;
    width: clamp(90px, 15vw, 220px);
    opacity: 0;
    z-index: 1;
}

.mr-rayito img {
    display: block;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 8px rgba(15, 23, 42, 0.18));
}

.mr-rayito--left {
    left: -30%;
    animation: mrRayitoEnterLeft 10s ease-in-out infinite;
}

.mr-rayito--right {
    right: -30%;
    animation: mrRayitoEnterRight 10s ease-in-out infinite;
    animation-delay: 5s;
}

.mr-rayito--right img {
    transform: scaleX(-1);
}

@keyframes mrRayitoEnterLeft {
    0%, 100% { left: -30%; opacity: 0; }
    12% { opacity: 1; }
    40%, 62% { left: 2%; opacity: 1; }
    92% { opacity: 0; }
}

@keyframes mrRayitoEnterRight {
    0%, 100% { right: -30%; opacity: 0; }
    12% { opacity: 1; }
    40%, 62% { right: 2%; opacity: 1; }
    92% { opacity: 0; }
}

@media (max-width: 700px) {
    .mr-rayito {
        width: clamp(72px, 24vw, 150px);
        bottom: 2%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .mr-rayito {
        animation: none !important;
        opacity: 1;
    }
    .mr-rayito--left { left: 2%; }
    .mr-rayito--right { right: 2%; }
}

/* ---------- Rayitos de Sol ---------- */

.mr-hand {
    position: absolute;
    bottom: -2%;
    width: 90px;
    height: 105px;
    opacity: 0.85;
    transition: opacity var(--mr-transition-theme);
}

.mr-hand--left {
    left: 3%;
    animation: mrHandFloat 6s ease-in-out infinite;
}

.mr-hand--right {
    right: 3%;
    transform: scaleX(-1);
    animation: mrHandFloat 6s ease-in-out infinite;
    animation-delay: -3s;
}

.mr-hand-shape {
    fill: var(--mr-hand-color);
    transition: fill var(--mr-transition-theme);
}

[data-theme="dark"] .mr-hand-shape {
    fill: var(--mr-hand-color-night);
}

.mr-hand-spark {
    fill: #fff7d6;
    opacity: 0.9;
    animation: mrSunPulse 2.4s ease-in-out infinite;
}

@keyframes mrHandFloat {
    0%, 100% { transform: translateY(0) scaleX(var(--mr-hand-flip, 1)); }
    50% { transform: translateY(-14px) scaleX(var(--mr-hand-flip, 1)); }
}

.mr-hand--right {
    --mr-hand-flip: -1;
}

/* ---------- Canvas (partículas, mariposas, hilos, ondas mágicas) ---------- */

.mr-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* ---------- Responsive ---------- */

@media (max-width: 700px) {
    .mr-hand {
        width: 60px;
        height: 70px;
    }

    .mr-ground {
        height: 60px;
    }

    .mr-garden {
        height: 40px;
    }

    .mr-flower {
        width: 22px;
        height: 32px;
    }
}

/* ---------- Accesibilidad: respeta reduce-motion ---------- */

@media (prefers-reduced-motion: reduce) {
    .mr-sun,
    .mr-sun-glow,
    .mr-snoopy,
    .mr-zzz,
    .mr-cloud,
    .mr-hand,
    .mr-hand-spark,
    .mr-stars,
    .mr-flower {
        animation: none !important;
    }
}