html, body {
    scroll-behavior: smooth;    
    scrollbar-width: none;  /* Firefox */
    -ms-overflow-style: none;  /* IE and Edge */
}

/* Splash Screen Styles */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: transparent;
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Show splash only when activated */
.splash-screen.show {
    display: flex;
}

/* Doors */
.door {
    position: absolute;
    top: 0;
    width: 50vw;
    height: 100vh;
    z-index: 2;
    background-image: linear-gradient(to bottom, rgb(6, 6, 30) 5%, rgb(8, 8, 50) 35%, rgb(10, 10, 70) 65%, rgb(12, 12, 90) 100%);
    background-size: 100vw 100vh;
    background-repeat: no-repeat;
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}
.door-left { left: 0; background-position: left top; }
.door-right { right: 0; background-position: right top; }
.door-left::after, .door-right::after { display: none; }

.splash-content {
    position: relative;
    text-align: center;
    z-index: 3;
}

.splash-icon {
    font-family: 'Doto', monospace;
    font-size: 4rem;
    font-weight: bold;
    color: white;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
    animation: iconSequence 2.0s ease-in-out forwards; /* finish before doors open */
    display: inline-flex;
    gap: 0.5rem;
}
.chev { display: inline-block; }

/* Sync chevrons with doors when opening */
.splash-screen.open-doors .door-left { animation: doorOpenLeft 1.2s ease-in-out forwards; }
.splash-screen.open-doors .door-right { animation: doorOpenRight 1.2s ease-in-out forwards; }
.splash-screen.open-doors .chev-left { animation: chevLeftFly 1.2s ease-in-out forwards; }
.splash-screen.open-doors .chev-right { animation: chevRightFly 1.2s ease-in-out forwards; }

/* Keyframes */
@keyframes iconSequence {
    0% { transform: scale(1) rotate(0deg); }
    60% { transform: scale(1) rotate(720deg); }
    75% { transform: scale(1) rotate(720deg); }
    100% { transform: scale(2.2) rotate(720deg); }
}

@keyframes doorOpenLeft {
    from { transform: translateX(0); }
    to { transform: translateX(-100%); }
}
@keyframes doorOpenRight {
    from { transform: translateX(0); }
    to { transform: translateX(100%); }
}
@keyframes chevLeftFly {
    from { transform: translateX(0); }
    to { transform: translateX(-50vw); opacity: 1; }
}
@keyframes chevRightFly {
    from { transform: translateX(0); }
    to { transform: translateX(50vw); opacity: 1; }
}

html::-webkit-scrollbar, 
body::-webkit-scrollbar {
    display: none; /* Chrome, Safari */
}

nav {  
    backdrop-filter: blur(10px);
}

nav,
li, 
.Name, 
.About, 
.Tech, 
.Contacts {
    font-family:'Doto';
}

body {
    background: linear-gradient(to bottom, rgb(6, 6, 30) 5%, rgb(8, 8, 50) 35%, rgb(10, 10, 70) 65%, rgb(12, 12, 90) 100%);
    font-family: 'Kode Mono';
    min-height: 100vh;
}
     
section {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

canvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
}

.mobile-menu {
    backdrop-filter: blur(10px);
}

/*Light Mode*/
.mode {
    background: linear-gradient(to bottom, rgb(204, 75, 64) 5%, rgb(204, 104, 69) 35%, rgb(204, 142, 84) 65%, rgb(204, 175, 115) 100%);
    color: black;
}

.certificate-img {
    transition: transform 0.3s ease;
}

#certificateModal {
    transition: opacity 0.3s ease;
}

#certificateModal.hidden {
    display: none;
    opacity: 0;
}

#certificateModal:not(.hidden) {
    opacity: 1;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-image {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.5s;
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-down {
    animation: fadeInDown 1s ease forwards;
}

.delay-200 { animation-delay: 0.2s; }
.delay-400 { animation-delay: 0.4s; }