/* Intro Animation Styles - Completely Redesigned */

/* Lock body scroll during intro */
body.intro-active {
    overflow: hidden;
    height: 100vh;
}

.intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    z-index: 10000;
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity;
}

.intro-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Loading Phase */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.6s ease;
}

.loading-container.fade-out {
    opacity: 0;
}

.loading-text {
    font-family: 'Encode Sans Semi Condensed', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 2rem;
    letter-spacing: 2px;
    opacity: 0;
    animation: fadeInText 0.8s ease-out 0.3s forwards;
}

.loading-bar-container {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.loading-bar {
    height: 100%;
    background: linear-gradient(90deg, #4FC3F7, #29B6F6, #03A9F4);
    width: 0%;
    border-radius: 2px;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(79, 195, 247, 0.5);
}

.loading-percentage {
    font-family: 'Encode Sans Semi Condensed', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: #4FC3F7;
    margin-top: 0.5rem;
    opacity: 0;
    animation: fadeInText 0.8s ease-out 0.5s forwards;
}

/* Logo Phase */
.intro-logo {
    position: absolute;
    opacity: 0;
    transform: scale(0.8);
    will-change: transform, opacity, filter;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-logo .logo-image {
    width: 200px;
    height: 200px;
    filter: 
        brightness(1.2) 
        drop-shadow(0 0 20px rgba(255, 255, 255, 0.3))
        drop-shadow(0 0 40px rgba(79, 195, 247, 0.2));
    transition: filter 0.3s ease;
}

.intro-logo.animate {
    animation: logoEntrance 5s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.intro-logo.animate .logo-image {
    animation: logoGlow 5s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

@keyframes fadeInText {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes logoEntrance {
    0% {
        opacity: 0;
        transform: scale(0.7);
    }
    15% {
        opacity: 0.3;
        transform: scale(0.85);
    }
    30% {
        opacity: 0.7;
        transform: scale(1);
    }
    45% {
        opacity: 0.9;
        transform: scale(1.08);
    }
    60% {
        opacity: 1;
        transform: scale(1.05);
    }
    75% {
        opacity: 1;
        transform: scale(1.02);
    }
    85% {
        opacity: 1;
        transform: scale(1.01);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes logoGlow {
    0% {
        filter: 
            brightness(1) 
            drop-shadow(0 0 10px rgba(255, 255, 255, 0.2));
    }
    15% {
        filter: 
            brightness(1.1) 
            drop-shadow(0 0 15px rgba(255, 255, 255, 0.4))
            drop-shadow(0 0 30px rgba(79, 195, 247, 0.3));
    }
    30% {
        filter: 
            brightness(1.3) 
            drop-shadow(0 0 25px rgba(255, 255, 255, 0.7))
            drop-shadow(0 0 50px rgba(79, 195, 247, 0.5))
            drop-shadow(0 0 75px rgba(3, 169, 244, 0.3));
    }
    45% {
        filter: 
            brightness(1.5) 
            drop-shadow(0 0 35px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 70px rgba(79, 195, 247, 0.7))
            drop-shadow(0 0 105px rgba(3, 169, 244, 0.5));
    }
    60% {
        filter: 
            brightness(1.7) 
            drop-shadow(0 0 45px rgba(255, 255, 255, 1))
            drop-shadow(0 0 90px rgba(79, 195, 247, 0.9))
            drop-shadow(0 0 135px rgba(3, 169, 244, 0.7));
    }
    75% {
        filter: 
            brightness(1.8) 
            drop-shadow(0 0 50px rgba(255, 255, 255, 1))
            drop-shadow(0 0 100px rgba(79, 195, 247, 1))
            drop-shadow(0 0 150px rgba(3, 169, 244, 0.8));
    }
    85% {
        filter: 
            brightness(1.6) 
            drop-shadow(0 0 45px rgba(255, 255, 255, 0.95))
            drop-shadow(0 0 90px rgba(79, 195, 247, 0.9))
            drop-shadow(0 0 135px rgba(3, 169, 244, 0.7));
    }
    100% {
        filter: 
            brightness(1.4) 
            drop-shadow(0 0 40px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 80px rgba(79, 195, 247, 0.8));
    }
}

/* Gate Panels - Redesigned for smooth animation */
.gate-panel {
    position: fixed;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    z-index: 10001;
    opacity: 0;
    will-change: transform, opacity;
}

.gate-panel.show {
    opacity: 1;
    transition: transform 1.2s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.3s ease;
}

.gate-top {
    top: 0;
    left: 0;
    width: 100vw;
    height: 50vh;
    clip-path: polygon(0 0, 100% 0, 85% 100%, 15% 100%);
    transform: translateY(-100vh);
}

.gate-bottom {
    bottom: 0;
    left: 0;
    width: 100vw;
    height: 50vh;
    clip-path: polygon(15% 0, 85% 0, 100% 100%, 0 100%);
    transform: translateY(100vh);
}

.gate-left {
    top: 0;
    left: 0;
    width: 50vw;
    height: 100vh;
    clip-path: polygon(0 0, 100% 15%, 100% 85%, 0 100%);
    transform: translateX(-100vw);
}

.gate-right {
    top: 0;
    right: 0;
    width: 50vw;
    height: 100vh;
    clip-path: polygon(0 15%, 100% 0, 100% 100%, 0 85%);
    transform: translateX(100vw);
}

/* Animation states */
.gate-top.animate {
    transform: translateY(0);
}

.gate-bottom.animate {
    transform: translateY(0);
}

.gate-left.animate {
    transform: translateX(0);
}

.gate-right.animate {
    transform: translateX(0);
}

/* Gate opening animation */
.gate-top.open {
    transform: translateY(-100vh);
}

.gate-bottom.open {
    transform: translateY(100vh);
}

.gate-left.open {
    transform: translateX(-100vw);
}

.gate-right.open {
    transform: translateX(100vw);
}

/* Body scroll lock during animation */
body.intro-active {
    overflow: hidden;
    height: 100vh;
}

/* Main content fade in */
.main-content {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s cubic-bezier(0.23, 1, 0.32, 1), 
                transform 1s cubic-bezier(0.23, 1, 0.32, 1);
}

.main-content.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Force show main content if animation fails */
body:not(.intro-active) .main-content {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Mobile responsiveness */
@media screen and (max-width: 768px) {
    .intro-logo {
        font-size: 8rem;
    }
    
    .loading-text {
        font-size: 1.4rem;
    }
    
    .loading-bar-container {
        width: 250px;
    }
}

@media screen and (max-width: 480px) {
    .intro-logo {
        font-size: 6rem;
    }
    
    .loading-text {
        font-size: 1.2rem;
        letter-spacing: 1px;
    }
    
    .loading-bar-container {
        width: 200px;
    }
}

/* Preloader optimizations */
.intro-overlay * {
    will-change: transform, opacity;
}

/* Smooth transitions for better performance */
@media (prefers-reduced-motion: no-preference) {
    .intro-overlay,
    .loading-container,
    .intro-logo,
    .gate-panel,
    .main-content {
        backface-visibility: hidden;
        transform-style: preserve-3d;
    }
}