/* Preloader Styles */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0066ff 0%, #4d9eff 50%, #0066ff 100%);
    background-size: 400% 400%;
    animation: gradientWave 4s ease infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    overflow: hidden;
}

.preloader::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    animation: floatBubbles 8s ease-in-out infinite;
}

.preloader-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.preloader-logo {
    margin-bottom: 30px;
    animation: logoEntrance 2s ease;
}

.preloader-logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    animation: logoSpin 3s ease infinite, logoPulse 2s ease infinite;
}

.preloader-text {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2px;
}

.letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(50px) rotateX(90deg);
    animation: letterReveal 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
    position: relative;
}

.letter:nth-child(1) { animation-delay: 0.1s; }
.letter:nth-child(2) { animation-delay: 0.2s; }
.letter:nth-child(3) { animation-delay: 0.3s; }
.letter:nth-child(4) { animation-delay: 0.4s; }
.letter:nth-child(6) { animation-delay: 0.6s; }
.letter:nth-child(7) { animation-delay: 0.7s; }
.letter:nth-child(8) { animation-delay: 0.8s; }
.letter:nth-child(9) { animation-delay: 0.9s; }

.letter::before {
    content: attr(data-letter);
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmerText 2s ease infinite;
}

.space {
    width: 20px;
}

.preloader-tagline {
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeInUp 1s ease 1.2s forwards;
}

.tagline-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
}

.tagline-text::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: white;
    animation: underlineGrow 1.5s ease 1.5s forwards;
    transform: translateX(-50%);
}

.preloader-progress {
    width: 300px;
    margin: 0 auto;
    opacity: 0;
    animation: fadeInUp 1s ease 1.8s forwards;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 15px;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: progressShimmer 2s ease infinite;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #ffffff, #e6f2ff, #ffffff);
    background-size: 200% 100%;
    border-radius: 10px;
    animation: progressFill 3s ease forwards, progressGlow 2s ease infinite;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8));
    border-radius: 0 10px 10px 0;
}

.progress-percent {
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.preloader-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.preloader-particles .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 8s linear infinite;
}

.preloader-particles .particle:nth-child(1) {
    left: 10%;
    animation-delay: 0s;
    animation-duration: 6s;
}

.preloader-particles .particle:nth-child(2) {
    left: 20%;
    animation-delay: 1s;
    animation-duration: 8s;
}

.preloader-particles .particle:nth-child(3) {
    left: 30%;
    animation-delay: 2s;
    animation-duration: 7s;
}

.preloader-particles .particle:nth-child(4) {
    left: 40%;
    animation-delay: 3s;
    animation-duration: 9s;
}

.preloader-particles .particle:nth-child(5) {
    left: 50%;
    animation-delay: 0.5s;
    animation-duration: 6.5s;
}

.preloader-particles .particle:nth-child(6) {
    left: 60%;
    animation-delay: 1.5s;
    animation-duration: 7.5s;
}

.preloader-particles .particle:nth-child(7) {
    left: 70%;
    animation-delay: 2.5s;
    animation-duration: 8.5s;
}

.preloader-particles .particle:nth-child(8) {
    left: 80%;
    animation-delay: 3.5s;
    animation-duration: 5.5s;
}

/* Preloader Animations */
@keyframes gradientWave {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes floatBubbles {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
    }
    50% {
        transform: translateY(-10px) rotate(0deg);
    }
    75% {
        transform: translateY(-30px) rotate(-5deg);
    }
}

@keyframes logoEntrance {
    0% {
        opacity: 0;
        transform: scale(0) rotate(180deg);
    }
    50% {
        opacity: 1;
        transform: scale(1.2) rotate(90deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

@keyframes logoSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes logoPulse {
    0%, 100% {
        transform: scale(1);
        filter: brightness(0) invert(1);
    }
    50% {
        transform: scale(1.1);
        filter: brightness(0) invert(1) drop-shadow(0 0 20px rgba(255, 255, 255, 0.8));
    }
}

@keyframes letterReveal {
    0% {
        opacity: 0;
        transform: translateY(50px) rotateX(90deg);
    }
    50% {
        opacity: 1;
        transform: translateY(-10px) rotateX(45deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0deg);
    }
}

@keyframes shimmerText {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: 200px 0;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes underlineGrow {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes progressFill {
    from {
        width: 0%;
    }
    to {
        width: 100%;
    }
}

@keyframes progressGlow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6);
    }
}

@keyframes progressShimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0px) rotate(0deg) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
        transform: translateY(90vh) translateX(10px) rotate(45deg) scale(1);
    }
    90% {
        opacity: 0.6;
        transform: translateY(10vh) translateX(-10px) rotate(315deg) scale(1);
    }
    100% {
        transform: translateY(-10vh) translateX(0px) rotate(360deg) scale(0);
        opacity: 0;
    }
}

/* Preloader Hide Animation */
.preloader.fade-out {
    animation: preloaderFadeOut 1s ease forwards;
}

@keyframes preloaderFadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    100% {
        opacity: 0;
        transform: scale(1.1);
        visibility: hidden;
    }
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .preloader-text {
        font-size: 2.5rem;
    }
    
    .preloader-logo-img {
        width: 60px;
        height: 60px;
    }
    
    .progress-bar {
        width: 250px;
    }
}

@media (max-width: 480px) {
    .preloader-text {
        font-size: 2rem;
    }
    
    .tagline-text {
        font-size: 1rem;
    }
    
    .progress-bar {
        width: 200px;
    }
    
    .preloader-logo-img {
        width: 50px;
        height: 50px;
    }
}