/* ===================================================================
   3D Responsive Preloader Stylesheet - Springedge Technology
   =================================================================== */

:root {
    --bg-dark-glow: #080b11;
    --preloader-primary: #0e8eea; /* Sky Blue */
    --preloader-secondary: #e8fd25; /* Yellow/Lime */
    --ring-size-lg: 160px;
    --ring-size-md: 120px;
    --ring-size-sm: 80px;
    --logo-size: 55px;
}

/* Loading Screen Container */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-dark-glow);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999999;
    overflow: hidden;
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1), 
                opacity 0.8s cubic-bezier(0.77, 0, 0.175, 1);
    will-change: transform, opacity;
}

/* Ambient Radial Glow Background */
.loader-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(14, 142, 234, 0.12) 0%, rgba(232, 253, 37, 0.02) 50%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    animation: ambientGlow 8s ease-in-out infinite alternate;
}

@keyframes ambientGlow {
    0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

/* Main Loader Centering Box */
.loader-container {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2;
    perspective: 1000px;
}

/* 3D Scene Wrapper */
.loader-3d-scene {
    position: relative;
    width: var(--ring-size-lg);
    height: var(--ring-size-lg);
    transform-style: preserve-3d;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 3D Rings */
.loader-3d-ring {
    position: absolute;
    border-radius: 50%;
    border: 3px solid transparent;
    transform-style: preserve-3d;
}

.loader-3d-ring.ring-outer {
    width: var(--ring-size-lg);
    height: var(--ring-size-lg);
    border-top-color: var(--preloader-primary);
    border-bottom-color: var(--preloader-primary);
    filter: drop-shadow(0 0 10px rgba(14, 142, 234, 0.5));
    animation: rotateOuter 2.5s linear infinite;
}

.loader-3d-ring.ring-middle {
    width: var(--ring-size-md);
    height: var(--ring-size-md);
    border-left-color: var(--preloader-secondary);
    border-right-color: var(--preloader-secondary);
    filter: drop-shadow(0 0 8px rgba(232, 253, 37, 0.4));
    animation: rotateMiddle 2s linear infinite;
}

.loader-3d-ring.ring-inner {
    width: var(--ring-size-sm);
    height: var(--ring-size-sm);
    border-top-color: var(--preloader-primary);
    border-left-color: var(--preloader-secondary);
    filter: drop-shadow(0 0 6px rgba(14, 142, 234, 0.3));
    animation: rotateInner 1.5s linear infinite;
}

/* Logo Positioned Inside the 3D Rings */
.loader-logo-wrapper {
    position: absolute;
    width: var(--logo-size);
    height: var(--logo-size);
    display: flex;
    justify-content: center;
    align-items: center;
    transform: translateZ(20px); /* 3D layer depth shift */
    z-index: 5;
}

.loader-logo-glow {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 15px rgba(14, 142, 234, 0.7));
    animation: logoPulse 2s ease-in-out infinite alternate;
}

/* 3D Animations */
@keyframes rotateOuter {
    0% { transform: rotateX(60deg) rotateY(15deg) rotateZ(0deg); }
    100% { transform: rotateX(60deg) rotateY(15deg) rotateZ(360deg); }
}

@keyframes rotateMiddle {
    0% { transform: rotateX(-45deg) rotateY(45deg) rotateZ(360deg); }
    100% { transform: rotateX(-45deg) rotateY(45deg) rotateZ(0deg); }
}

@keyframes rotateInner {
    0% { transform: rotateX(70deg) rotateY(-30deg) rotateZ(0deg); }
    100% { transform: rotateX(70deg) rotateY(-30deg) rotateZ(360deg); }
}

@keyframes logoPulse {
    0% { transform: scale(0.92); filter: drop-shadow(0 0 8px rgba(14, 142, 234, 0.5)); }
    100% { transform: scale(1.08); filter: drop-shadow(0 0 20px rgba(14, 142, 234, 0.8)); }
}

/* Preloader Close Button (Optional/Accessibility) */
.loading-screen .preloader-close {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 16px;
    font-weight: bold;
    line-height: 34px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    cursor: pointer;
    z-index: 999999999;
    transition: all 0.3s ease;
}

.loading-screen .preloader-close:hover {
    background: var(--preloader-primary);
    color: #ffffff;
    border-color: var(--preloader-primary);
    box-shadow: 0 0 10px var(--preloader-primary);
}

/* Loading Text & Progress Styling */
.loader-text-wrapper {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.loader-brand-title {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: 24px;
    color: #ffffff;
    margin: 0;
    letter-spacing: 3px;
    text-transform: uppercase;
    display: flex;
    gap: 8px;
}

.loader-brand-title .word.highlighted {
    color: var(--preloader-primary);
    text-shadow: 0 0 10px rgba(14, 142, 234, 0.4);
}

.loader-subtext {
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 5px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 12px;
    animation: textFadePulse 1.5s ease-in-out infinite alternate;
}

@keyframes textFadePulse {
    0% { opacity: 0.3; }
    100% { opacity: 0.9; }
}

/* Loader Progress Bar */
.loader-bar-container {
    width: 140px;
    height: 2px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    margin-top: 15px;
    overflow: hidden;
    position: relative;
}

.loader-progress-bar {
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, var(--preloader-primary), var(--preloader-secondary));
    border-radius: 4px;
    animation: progressBarAnim 2s infinite ease-in-out;
}

@keyframes progressBarAnim {
    0% { left: -40%; width: 30%; }
    50% { width: 50%; }
    100% { left: 100%; width: 30%; }
}

/* Page Exit Transition Styles */
.loading-screen.fade-out {
    opacity: 0;
    transform: scale(1.05) translateY(-5%); /* subtle zoom + lift */
    pointer-events: none;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    :root {
        --ring-size-lg: 130px;
        --ring-size-md: 95px;
        --ring-size-sm: 65px;
        --logo-size: 44px;
    }
    .loader-brand-title {
        font-size: 18px;
        letter-spacing: 2px;
    }
    .loader-subtext {
        font-size: 9px;
        letter-spacing: 3px;
    }
    .loader-bar-container {
        width: 110px;
    }
}

@media (max-width: 480px) {
    :root {
        --ring-size-lg: 110px;
        --ring-size-md: 80px;
        --ring-size-sm: 55px;
        --logo-size: 36px;
    }
    .loader-brand-title {
        font-size: 16px;
        flex-direction: column;
        gap: 2px;
    }
    .loader-subtext {
        font-size: 8px;
        letter-spacing: 2px;
        margin-top: 8px;
    }
    .loader-bar-container {
        width: 90px;
    }
}