/* Variables */

:root{
    --primary:#8B0000;
    --primary-light:#C51E1E;
    --secondary:#FFFFFF;
    --background:#060606;
    --glass:rgba(255,255,255,.08);
    --glass-border:rgba(255,255,255,.18);
    --shadow:rgba(0,0,0,.45);
    --transition:.35s ease;
}

/*Letras */
@font-face {
    font-family: 'Heat';
    src: url(Font/Heaters.woff);
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Gratelos';
    src: url(Font/GratelosDisplay.woff);
    font-weight: normal;
    font-style: normal;
}



/* Reset */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    width:100%;
    height:100vh;
    overflow:hidden;
    font-family:
    Arial,
    Helvetica,
    sans-serif;
    background:var(--background);
    color:white;
    position:relative;
}

/* Fondo */

.background-gradient{
    position:fixed;
    inset:0;
    background:
    radial-gradient(circle at center,
    #1d3cd9 0%,
    #181818 30%,
    #0d0d0d 65%,
    #000000 100%);
    z-index:-4;
}

.background-overlay{
    position:fixed;
    inset:0;
    background:
    linear-gradient(to bottom,
    rgba(0,0,0,.15),
    rgba(0,0,0,.55),
    rgba(0,0,0,.92) ); 

    z-index:-3;
    pointer-events: none;
}

/* Loader */
#loader{
    position:fixed;
    inset:0;
    background:#000;
    display:flex;
    justify-content:center;
    align-items:center;
    z-index:99999;
    transition:1s;
}

.loader-content{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:20px;
}

.loader-circle{
    width:70px;
    height:70px;
    border-radius:50%;
    border:
    5px solid rgba(255,255,255,.15);
    border-top:
    5px solid white;
}

.loader-content p{
    color:white;
    letter-spacing:2px;
    font-size:14px;
    text-transform:uppercase;
}

/* Luces */
.spotlight{
    position:fixed;
    top:-400px;
    width:320px;
    height:1000px;
    filter:blur(30px);
    opacity:.28;
    pointer-events:none;
    z-index:-1;
    transform-origin:top center;
}

.spotlight::before{
    content:"";
    position:absolute;
    inset:0;
    /*background:
    radial-gradient(
        ellipse,
        rgba(255,255,220,.95),
        rgba(255,255,220,.25),
        transparent
    );*/
}

.spotlight-1{
    left:5%;
    background: radial-gradient(
        ellipse,
        rgba(61, 161, 65, 0.95),
        rgba(20, 182, 85, 0.25),
        transparent
    );
    
}

.spotlight-2{
    left:40%;
    background: radial-gradient(
        ellipse,
        rgba(151, 16, 16, 0.95),
        rgba(182, 20, 20, 0.25),
        transparent
    );

}

.spotlight-3{
    right:5%;
    background: radial-gradient(
        ellipse,
        rgba(255, 213, 0, 0.95),
        rgba(182, 177, 20, 0.25),
        transparent
    );

}

/*Telones*/
.curtain{
    opacity: 0;
    position:fixed;
    top:0;
    width:52%;
    height:100%;
    overflow:hidden;
    z-index:100;
}

.curtainTexture{
    position:absolute;
    inset:0;
    background:
    linear-gradient(
        90deg,
        #4d0000 0%,
        #7c0000 20%,
        #5e0000 40%,
        #860000 60%,
        #5e0000 80%,
        #3d0000 100%
    );

    background-size:100% 100%;
}

.curtainTexture::before{
    content:"";
    position:absolute;
    inset:0;
    background:
    repeating-linear-gradient(
        90deg,
        rgba(255,255,255,.05) 0px,
        rgba(255,255,255,.05) 8px,
        rgba(0,0,0,.15) 16px,
        rgba(0,0,0,.15) 32px
    );
    mix-blend-mode:overlay;
}


.curtain-left{
    left:0;
}

.curtain-right{
    right:0;
}


/* Particulas */
#particles{
    position:fixed;
    inset:0;
    overflow:hidden;
    pointer-events:none;
    z-index:1;
}

/* Hero */
#welcomeScreen{
    width:100%;
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    position:relative;
    z-index:5;
}

.hero{
    width:90%;
    max-width:420px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    text-align:center;
    opacity:0;
}

.redes{
        width:90%;
    max-width:420px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    text-align:center;
    opacity:0;
}
/* Logo */

#logo{
    width:100%;
    max-width:340px;
    margin-bottom:20px;
    user-select:none;
    -webkit-user-drag:none;
    filter:
    drop-shadow(0 0 35px rgba(255,255,255,.15));
}

.subtitle{
    font-size:15px;
    text-transform:uppercase;
    letter-spacing:6px;
    color:white;
    margin-bottom:40px;
    opacity:.85;
}

/* Botones */

.buttons{
    width:100%;
    display:flex;
    flex-direction:column;
    gap:18px;
    width:85vw;
    max-width:320px;
}

button{
    height:58px;
    border:none;
    border-radius:60px;
    cursor:pointer;
    color:rgb(0, 0, 0) ;
    background: rgb(255, 255, 255); 
    letter-spacing:.5px;
    border:
    1px solid rgba(255,255,255,.18);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition: 0.3s;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    box-shadow: 0 10px 25px rgba(0,0,0,.35);
    filter:none;
    font-family: 'Heat',sans-serif;
    font-size: 50px;
}

button:hover{
    transform:
    translateY(-3px)
    scale(1.02);
    box-shadow:
    0 0 20px rgba(255,255,255,.12),
    0 15px 35px rgba(0,0,0,.5);
}

button:active{
    transform:scale(.97);
}



#programBtn {
    font-family: 'Gratelos';
    font-size: 30px;
}

#musicBtn {
    font-family: 'Gratelos';
    font-size: 30px;
}

#videoBtn {
    font-family: 'Gratelos';
    font-size: 30px;
}

#programBtn:hover{
    background: rgb(194, 47, 47);
    color: white;
}

#musicBtn:hover{
    background: #0d9b11;
    color: white;
}

#videoBtn:hover{
    background: #f4c40c;
    color:black;
}


/* Libro (escena) */

#bookScene{
    position:fixed;
    inset:0;
    display:none;
    flex-direction:column;
    background:#000000;
    z-index:20;
}

.bookHeader{
    height:70px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 18px;
    background:rgba(0,0,0,.55);
    backdrop-filter:blur(12px);
}

.bookHeader button{
    width:48px;
    height:48px;
    border-radius:50%;
    border:none;
    color:white;
    background:rgba(255,255,255,.08);
    cursor:pointer;
}

#backBtn{
    width:auto;
    padding:0 18px;
    border-radius:50px;
    font-size: 20px;
}


.bookTools{
    display:flex;
    gap:10px;
}

#flipbook{
    flex:1;
    display:flex;
    justify-content:center;
    align-items:center;
    overflow:hidden;
}

/* Responsive */
@media (min-width:768px){

    .hero{        max-width:500px; }

    #logo{        max-width:430px;}

    .subtitle{        font-size:18px;}

    .buttons button{
        height:64px;
        font-size:18px;
    }
}

/* Video Modal */
#videoModal{
    position:fixed;
    inset:0;
    display:none;
    justify-content:center;
    align-items:center;
    background:rgba(0,0,0,.88);
    backdrop-filter:blur(12px);
    z-index:999;
    opacity:0;
}

.videoContainer{
    position:relative;
    width:92%;
    max-width:900px;
    transform:scale(.85);
}

#video{
    width:100%;
    border-radius:18px;
    background:#000;
    box-shadow:
    0 20px 70px rgba(0,0,0,.6);
}

#closeVideo{
    position:absolute;
    top:-55px;
    right:0;
    width:42px;
    height:42px;
    border:none;
    border-radius:50%;
    cursor:pointer;
    color:white;
    font-size:22px;
    background:
    rgba(255,255,255,.12);
    backdrop-filter:blur(15px);
}

/* Efectos */
#effectsLayer{
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:15;
}

/* Partículas */

.particle{
    /*Version original
    position:absolute;
    width:4px;
    height:4px;
    border-radius:50%;
    background:
    rgba(255,255,255,.28);
    filter:blur(.4px);
    pointer-events:none;
    */

    position:absolute;
    width:4px;
    height:4px;
    border-radius:50%;
    background:rgba(255,255,255,.28);
    filter:blur(.4px);
    pointer-events:none;

    bottom:-30px;
    animation-name:floatParticle;
    animation-timing-function:linear;
    animation-iteration-count:infinite;
}

/* Botones */

.buttons button{
    overflow:hidden;
    position:relative;
}

.buttons button::before{
    content:"";
    position:absolute;
    left:-140%;
    top:0;
    width:60%;
    height:100%;
    background:
    linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,.18),
        transparent
    );
}

.buttons button:hover::before{
    animation:
    buttonShine
    1s linear;
}

/*Redes*/
.redes-sociales{
    text-align: center;
}

.redes-sociales h3{
    margin-bottom: 20px;
    font-size: 1.2rem;
    color: #333;
}

.iconos-redes{
    display: flex;
    justify-content: center;
    gap: 25px;
}

.iconos-redes img{
    width: 20px;
    height: 20px;
    object-fit: contain;
    cursor: pointer;
    transition: transform .2s ease;
    display:block;
}

.iconos-redes img:hover{
    transform: scale(1.1);
}

.iconos-redes a{
 display: inline-block;
    text-decoration: none;
    border: none;
    outline: none;
    padding: 0;
    margin: 0 8px;
    color:black;
}


/* Scrollbar */

::-webkit-scrollbar{
    width:8px;
}

::-webkit-scrollbar-track{
    background:#111;
}

::-webkit-scrollbar-thumb{
    background:#555;
    border-radius:20px;
}

/* Animaciones */

@keyframes rotateLoader{
    from{
        transform:rotate(0deg);
    }
    to{
        transform:rotate(360deg);
    }
}

.loader-circle{
    animation:
    rotateLoader
    1s linear infinite;
}

/* ---------- Respiración del logo ---------- */
@keyframes breathe{
    0%{
        transform:scale(1);
    }
    50%{
        transform:scale(1.025);
    }
    100%{
        transform:scale(1);
    }
}

/* ---------- Brillo del logo ---------- */

@keyframes logoGlow{
    0%{
        filter:
        drop-shadow(0 0 8px rgba(255,255,255,.08));
    }
    50%{
        filter:
        drop-shadow(0 0 35px rgba(255,255,255,.35));
    }
    100%{
        filter:
        drop-shadow(0 0 8px rgba(255,255,255,.08));
    }
}

/* ---------- Luces ---------- */
@keyframes spotlightOne{
    0%{
        transform:
        rotate(-12deg);
    }
    50%{
        transform:
        rotate(6deg);
    }
    100%{
        transform:
        rotate(-12deg);
    }
}

@keyframes spotlightTwo{
    0%{
        transform:
        rotate(8deg);
    }
    50%{
        transform:
        rotate(-8deg);
    }
    100%{
        transform:
        rotate(8deg);
    }
}


@keyframes spotlightThree{
    0%{
        transform:
        rotate(12deg);
    }
    50%{
        transform:
        rotate(-5deg);
    }
    100%{
        transform:
        rotate(12deg);
    }
}

/* ---------- Destello ---------- */

@keyframes flash{
    0%{
        opacity:0;
    }
    50%{
        opacity:.18;
    }
    100%{
        opacity:0;
    }
}

/* ---------- Botón ---------- */
@keyframes buttonShine{
    from{
        left:-120%;
    }
    to{
        left:150%;
    }
}

/* Aplicación de animaciones  */

#logo{
    animation:
    breathe 5s ease-in-out infinite,
    logoGlow 4s ease-in-out infinite;
}

.spotlight-1{
    animation:
    spotlightOne 8s ease-in-out infinite;
}

.spotlight-2{
    animation:
    spotlightTwo 10s ease-in-out infinite;
}

.spotlight-3{
    animation:
    spotlightThree 9s ease-in-out infinite;
}

/* Responsive */

@media(min-width:1200px){
    .hero{
        max-width:560px;
    }

    #logo{
        max-width:480px;
    }
}

@media(max-height:680px){
    #logo{
        max-width:250px;
    }

    .subtitle{
        margin-bottom:25px;
    }

    .buttons{
        gap:14px;
    }

    .buttons button{
        height:52px;
        font-size:16px;
    }
} 

/*======================================================
LIBRO
======================================================*/

#book{

    width:95vw;

    max-width:450px;

    height:82vh;

    margin:auto;

}

.page{

    background:black;

}

.page img{

    width:100%;

    height:100%;

    object-fit:contain;

    user-select:none;

    -webkit-user-drag:none;

}

/* sombra */

.stf__parent{

    margin:auto;

}

.stf__wrapper{

    box-shadow:

    0 20px 60px rgba(0,0,0,.45);

}

.stf__block{

    background:#111;

}

/*Agregados de la página*/
.page{
    background:black;
    display:flex;
    justify-content:center;
    align-items:center;
}

.page img{
    width:100%;
    height:100%;
    object-fit:contain;
    user-select:none;
    pointer-events:none;
}

/*=========================================
        ZOOM DEL LIBRO
=========================================*/

#flipbook{
    transition:transform .45s ease;
    transform-origin:center center;
}

#flipbook.zoomed{
    transform:scale(1.8);
    z-index:1000;
}

#bookScene{
    overflow:auto;
}

/*==================================================
                VISOR
==================================================*/

#pageViewer{
    position:fixed;
    inset:0;
    display:none;
    justify-content:center;
    align-items:center;
    opacity:0;
    z-index:999999;
    overflow:hidden;
}


/*--------------------------------*/

#viewerOverlay{

    position:absolute;

    inset:0;

    background:rgba(0,0,0,.94);

    backdrop-filter:blur(4px);

}


/*--------------------------------*/

#viewerContent{

    position:relative;

    width:92vw;

    height:92vh;

    display:flex;

    justify-content:center;

    align-items:center;

    z-index:2;

}


/*--------------------------------*/

#viewerImage{

    max-width:100%;

    max-height:100%;

    object-fit:contain;

    user-select:none;

    -webkit-user-drag:none;

    border-radius:10px;

    box-shadow:

    0 18px 60px rgba(0,0,0,.45);

}


/*--------------------------------*/

#viewerClose{

    position:absolute;

    top:18px;

    right:18px;

}


/*--------------------------------*/

#viewerPrev{

    position:absolute;

    left:10px;

    top:50%;

    transform:translateY(-50%);

}


/*--------------------------------*/

#viewerNext{

    position:absolute;

    right:10px;

    top:50%;

    transform:translateY(-50%);

}


/*--------------------------------*/

#viewerClose,
#viewerPrev,
#viewerNext{

    width:56px;

    height:56px;

    border:none;

    border-radius:50%;

    background:rgba(255,255,255,.16);

    color:white;

    font-size:24px;

    cursor:pointer;

    z-index:5;

    transition:.25s;

    backdrop-filter:blur(10px);

}


/*--------------------------------*/

#viewerClose:hover,
#viewerPrev:hover,
#viewerNext:hover{

    background:rgba(255,255,255,.28);

}


/*==================================================
            RESPONSIVE
==================================================*/

@media(max-width:700px){

    #viewerPrev,
    #viewerNext{

        width:46px;

        height:46px;

        font-size:20px;

    }

    #viewerClose{

        width:48px;

        height:48px;

        font-size:22px;

    }

}

/*Esto es nuevo*/
@keyframes floatParticle {

    0%{
        transform:translateY(100vh) scale(.4);
        opacity:0;
    }

    10%{
        opacity:.35;
    }

    90%{
        opacity:.35;
    }

    100%{
        transform:translateY(-80vh) scale(1);
        opacity:0;
    }

}





/*GALERÍA*/
#galleryViewer{

    position:fixed;
    inset:0;

    display:none;

    justify-content:center;
    align-items:center;

    z-index:999999;

    background:rgba(0,0,0,.95);

}

#galleryContent{

    width:92vw;
    height:92vh;

    display:flex;

    justify-content:center;
    align-items:center;

}




#galleryImage{

    max-width:100%;
    max-height:100%;

    object-fit:contain;

    user-select:none;

}

#galleryClose,
#galleryPrev,
#galleryNext{

    position:absolute;

    width:40px;
    height:40px;

    border-radius:50%;

    font-size:20px;

    z-index:5;

    opacity: 0.5;

}

#galleryClose{

    top:20px;
    right:20px;

}

#galleryPrev{

    left:2px;
    top:50%;
    transform:translateY(-50%);

}

#galleryNext{

    right:2px;
    top:50%;
    transform:translateY(-50%);

}