/* ===== LOADER PREMIUM ===== */

.loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0B1B35 0%, #1E3D59 50%, #0B1B35 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    overflow: hidden;
}

/* Animated Background Grid */
.loader-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        linear-gradient(90deg, transparent 48%, rgba(0, 180, 219, 0.1) 50%, transparent 52%),
        linear-gradient(0deg, transparent 48%, rgba(0, 180, 219, 0.1) 50%, transparent 52%);
    background-size: 60px 60px;
    animation: gridScroll 20s linear infinite;
}

@keyframes gridScroll {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

/* Radial Glow Effect */
.loader-wrapper::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, 
        rgba(0, 180, 219, 0.3) 0%, 
        rgba(0, 180, 219, 0.1) 30%,
        transparent 70%);
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

/* Loader Container */
.loader {
    position: relative;
    z-index: 2;
    text-align: center;
}

/* Logo Animation */
.loader img {
    width: 250px;
    height: auto;
    filter: brightness(0) invert(1) drop-shadow(0 0 30px rgba(0, 180, 219, 0.8));
    animation: logoFloat 3s ease-in-out infinite;
    position: relative;
    z-index: 3;
}

@keyframes logoFloat {
    0%, 100% { 
        transform: translateY(0) scale(1);
        filter: brightness(0) invert(1) drop-shadow(0 0 30px rgba(0, 180, 219, 0.8));
    }
    50% { 
        transform: translateY(-20px) scale(1.05);
        filter: brightness(0) invert(1) drop-shadow(0 0 50px rgba(0, 180, 219, 1));
    }
}

/* Spinning Ring */
.loader::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    border: 3px solid transparent;
    border-top-color: var(--tech-gradient-3);
    border-right-color: var(--tech-gradient-3);
    border-radius: 50%;
    animation: spin 2s linear infinite;
    z-index: 1;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Double Ring Effect */
.loader::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    border: 2px solid transparent;
    border-bottom-color: rgba(0, 180, 219, 0.5);
    border-left-color: rgba(0, 180, 219, 0.5);
    border-radius: 50%;
    animation: spin-reverse 3s linear infinite;
    z-index: 0;
}

@keyframes spin-reverse {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(-360deg); }
}

/* Orbiting Dots */
.loader-wrapper .orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.orbit-dot {
    position: absolute;
    width: 15px;
    height: 15px;
    background: var(--tech-gradient-3);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(0, 180, 219, 0.8);
    animation: orbit 4s linear infinite;
}

.orbit-dot:nth-child(1) { animation-delay: 0s; }
.orbit-dot:nth-child(2) { animation-delay: 1s; }
.orbit-dot:nth-child(3) { animation-delay: 2s; }
.orbit-dot:nth-child(4) { animation-delay: 3s; }

@keyframes orbit {
    0% {
        top: 0;
        left: 50%;
        transform: translate(-50%, -50%) scale(1);
    }
    25% {
        top: 50%;
        left: 100%;
        transform: translate(-50%, -50%) scale(1.5);
    }
    50% {
        top: 100%;
        left: 50%;
        transform: translate(-50%, -50%) scale(1);
    }
    75% {
        top: 50%;
        left: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    100% {
        top: 0;
        left: 50%;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Loading Text */
.loading-text {
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.loading-text::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Progress Bar */
.loader-progress {
    position: absolute;
    bottom: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.loader-progress::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, 
        var(--tech-gradient-3), 
        var(--primary-color),
        var(--tech-gradient-3));
    background-size: 200% 100%;
    border-radius: 10px;
    animation: loading-progress 2s ease-in-out infinite,
               shimmer-progress 1.5s linear infinite;
    box-shadow: 0 0 20px rgba(0, 180, 219, 0.8);
}

@keyframes loading-progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

@keyframes shimmer-progress {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Particles Effect */
.loader-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--tech-gradient-3);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 180, 219, 0.8);
    opacity: 0;
    animation: particle-float 3s ease-in-out infinite;
}

.loader-particle:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.loader-particle:nth-child(2) {
    top: 40%;
    right: 25%;
    animation-delay: 0.5s;
}

.loader-particle:nth-child(3) {
    bottom: 30%;
    left: 30%;
    animation-delay: 1s;
}

.loader-particle:nth-child(4) {
    top: 60%;
    right: 15%;
    animation-delay: 1.5s;
}

.loader-particle:nth-child(5) {
    bottom: 20%;
    right: 40%;
    animation-delay: 2s;
}

@keyframes particle-float {
    0%, 100% {
        opacity: 0;
        transform: translateY(0) scale(0);
    }
    50% {
        opacity: 1;
        transform: translateY(-100px) scale(1);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .loader img {
        width: 180px;
    }
    
    .loader::before,
    .loader::after {
        width: 280px;
        height: 280px;
    }
    
    .loader-progress {
        width: 200px;
    }
}