/* ===== LOADING SCREEN - OPTIMIZED WITH SIMPLE GRADIENT ===== */

/* Base Loading Screen */
#loading-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* Simple 3-Color Gradient - Primary Lime Green Focus */
    background: linear-gradient(135deg, 
        #96994A 0%,      /* Primary lime green */
        #B8BB6A 50%,     /* Lighter lime */ #6f7135 100%     /* Darker lime */
    );
    
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

/* Hidden state for smooth fade out */
#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Subtle floating particles for visual interest - CSS only */
#loading-screen::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 35%),
        radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
    animation: particleFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes particleFloat {
    0%, 100% { 
        opacity: 0.4;
        transform: translate(0, 0) scale(1); 
    }
    50% { 
        opacity: 0.6;
        transform: translate(10px, -10px) scale(1.02); 
    }
}

/* Loader Container */
.loader-container {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

/* Diamond Loader Container - Restructured */
.diamond-loader-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Diamond Shape */
.loader {
    position: absolute;
    width: 80px;
    height: 80px;
    background-color: rgba(0, 0, 0, 0.5);
    transform: rotate(45deg);
    overflow: hidden;
}

.loader:after {
    content: '';
    position: absolute;
    inset: 10px;
    margin: auto;
    background: #1a1d29;
}

.loader:before {
    content: '';
    position: absolute;
    inset: -20px;
    margin: auto;
    background: linear-gradient(135deg, #B8BB6A 0%, #96994A 100%);
    animation: diamondLoader 2s linear infinite;
}

@keyframes diamondLoader {
    0%, 10% {
        transform: translate(-80px, -80px);
    }
    90%, 100% {
        transform: translate(0px, 0px);
    }
}

/* SV Brand Text - CENTERED INSIDE DIAMOND */
.brand-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 20;
    
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    color: white;
    text-shadow: 
        0 2px 10px rgba(0, 0, 0, 0.6),
        0 0 20px rgba(150, 153, 74, 0.8);
    letter-spacing: -1px;
    animation: brandPulse 2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes brandPulse {
    0%, 100% { 
        text-shadow: 
            0 2px 10px rgba(0, 0, 0, 0.6),
            0 0 20px rgba(150, 153, 74, 0.8);
    }
    50% { 
        text-shadow: 
            0 4px 15px rgba(0, 0, 0, 0.8),
            0 0 30px rgba(150, 153, 74, 1);
    }
}

/* Percentage Text - Below Diamond */
.percentage-text {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    margin-top: 1rem;
}

/* ===== RESPONSIVE DESIGN - MOBILE FIRST ===== */

/* Extra Small Devices (Phones Portrait, < 576px) */
@media (max-width: 575px) {
    .diamond-loader-wrapper {
        width: 56px;
        height: 56px;
    }
    
    .loader {
        width: 56px;
        height: 56px;
    }
    
    .loader:after {
        inset: 7px;
    }
    
    .loader:before {
        inset: -14px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-56px, -56px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 1.4rem;
    }
    
    .percentage-text {
        font-size: 1rem;
        margin-top: 0.75rem;
    }
    
    .loader-container {
        gap: 1.25rem;
    }
}

/* Small Devices (Phones Landscape, 576px - 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .diamond-loader-wrapper {
        width: 64px;
        height: 64px;
    }
    
    .loader {
        width: 64px;
        height: 64px;
    }
    
    .loader:after {
        inset: 8px;
    }
    
    .loader:before {
        inset: -16px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-64px, -64px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 1.6rem;
    }
    
    .percentage-text {
        font-size: 1.125rem;
        margin-top: 0.875rem;
    }
    
    .loader-container {
        gap: 1.5rem;
    }
}

/* Medium Devices (Tablets, 768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .diamond-loader-wrapper {
        width: 72px;
        height: 72px;
    }
    
    .loader {
        width: 72px;
        height: 72px;
    }
    
    .loader:after {
        inset: 9px;
    }
    
    .loader:before {
        inset: -18px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-72px, -72px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 1.8rem;
    }
    
    .percentage-text {
        font-size: 1.2rem;
        margin-top: 1rem;
    }
    
    .loader-container {
        gap: 1.75rem;
    }
}

/* Large Devices (Desktops, 992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .diamond-loader-wrapper {
        width: 80px;
        height: 80px;
    }
    
    .loader {
        width: 80px;
        height: 80px;
    }
    
    .loader:after {
        inset: 10px;
    }
    
    .loader:before {
        inset: -20px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-80px, -80px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 2rem;
    }
    
    .percentage-text {
        font-size: 1.25rem;
        margin-top: 1rem;
    }
}

/* Extra Large Devices (Large Desktops, 1200px+) */
@media (min-width: 1200px) {
    .diamond-loader-wrapper {
        width: 96px;
        height: 96px;
    }
    
    .loader {
        width: 96px;
        height: 96px;
    }
    
    .loader:after {
        inset: 12px;
    }
    
    .loader:before {
        inset: -24px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-96px, -96px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 2.5rem;
    }
    
    .percentage-text {
        font-size: 1.5rem;
        margin-top: 1.25rem;
    }
    
    .loader-container {
        gap: 2.5rem;
    }
}

/* Ultra Wide Screens (1400px+) */
@media (min-width: 1400px) {
    .diamond-loader-wrapper {
        width: 112px;
        height: 112px;
    }
    
    .loader {
        width: 112px;
        height: 112px;
    }
    
    .loader:after {
        inset: 14px;
    }
    
    .loader:before {
        inset: -28px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-112px, -112px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 3rem;
    }
    
    .percentage-text {
        font-size: 1.75rem;
        margin-top: 1.5rem;
    }
}

/* Landscape Orientation - Reduce Heights */
@media (max-height: 600px) and (orientation: landscape) {
    .diamond-loader-wrapper {
        width: 48px;
        height: 48px;
    }
    
    .loader {
        width: 48px;
        height: 48px;
    }
    
    .loader:after {
        inset: 6px;
    }
    
    .loader:before {
        inset: -12px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-48px, -48px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 1.2rem;
    }
    
    .percentage-text {
        font-size: 0.875rem;
        margin-top: 0.5rem;
    }
    
    .loader-container {
        gap: 1rem;
    }
}

/* Very Short Screens */
@media (max-height: 400px) {
    .diamond-loader-wrapper {
        width: 40px;
        height: 40px;
    }
    
    .loader {
        width: 40px;
        height: 40px;
    }
    
    .loader:after {
        inset: 5px;
    }
    
    .loader:before {
        inset: -10px;
    }
    
    @keyframes diamondLoader {
        0%, 10% {
            transform: translate(-40px, -40px);
        }
        90%, 100% {
            transform: translate(0px, 0px);
        }
    }
    
    .brand-text {
        font-size: 1rem;
    }
    
    .percentage-text {
        font-size: 0.75rem;
        margin-top: 0.25rem;
    }
    
    .loader-container {
        gap: 0.75rem;
    }
}

/* ===== ACCESSIBILITY ===== */

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
    #loading-screen::before,
    .loader:before,
    .brand-text {
        animation: none;
    }
    
    .loader:before {
        transform: translate(0px, 0px);
    }
    
    .brand-text {
        text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: more) {
    #loading-screen {
        background: #96994A;
    }
    
    .loader {
        background-color: #000000;
        border: 2px solid #ffffff;
    }
    
    .loader:after {
        background: #ffffff;
    }
    
    .brand-text {
        color: #000000;
        text-shadow: none;
    }
    
    .percentage-text {
        color: #ffffff;
        text-shadow: none;
    }
}

/* Print - Hide Loading Screen */
@media print {
    #loading-screen {
        display: none !important;
    }
}