.screen-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f5f7 0%, #e5e5ea 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}


.screen-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}


.loader-logo {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', sans-serif;
    font-size: clamp(2rem, 8vw, 4rem);
    font-weight: 700;
    color: #0071E3;
    margin-bottom: 2rem;
    letter-spacing: -2px;
    opacity: 0;
    transform: translateY(30px);
    animation: logoFadeIn 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s forwards;
}


.loader-logo::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: linear-gradient(45deg, #0071E3, #0077ED, #0066CC, #0071E3);
    background-size: 400% 400%;
    border-radius: 20px;
    z-index: -1;
    opacity: 0.1;
    animation: gradientShift 3s ease-in-out infinite;
}


.loader-spinner {
    position: relative;
    width: 60px;
    height: 60px;
    margin-bottom: 2rem;
}


.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid #0071E3;
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
}


.spinner-ring:nth-child(2) {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    border-top-color: #0077ED;
    animation: spin 1.2s linear infinite reverse;
}


.spinner-ring:nth-child(3) {
    width: 120%;
    height: 120%;
    top: -10%;
    left: -10%;
    border-top-color: #0066CC;
    animation: spin 2s linear infinite;
}


.loader-dots {
    display: flex;
    gap: 8px;
    margin-bottom: 1rem;
}

.loader-dot {
    width: 8px;
    height: 8px;
    background: #0071E3;
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.loader-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.loader-dot:nth-child(3) {
    animation-delay: 0.4s;
}


.loader-text {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', sans-serif;
    font-size: 0.9rem;
    color: #6e6e73;
    font-weight: 500;
    opacity: 0;
    animation: textFadeIn 0.8s ease-out 1s forwards;
}


.loader-progress {
    width: 200px;
    height: 4px;
    background: rgba(0, 113, 227, 0.1);
    border-radius: 2px;
    margin-top: 1rem;
    overflow: hidden;
    opacity: 0;
    animation: progressFadeIn 0.8s ease-out 1.5s forwards;
}

.loader-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #0071E3, #0077ED, #0066CC);
    border-radius: 2px;
    width: 0%;
    animation: progressFill 3s ease-out 2s forwards;
}


@keyframes logoFadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes dotPulse {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

@keyframes textFadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes progressFadeIn {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}


@keyframes loaderFadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.95);
    }
}


@media (prefers-color-scheme: dark) {
    .screen-loader {
        background: linear-gradient(135deg, #1d1d1f 0%, #2c2c2e 100%);
    }
    
    .loader-text {
        color: #8e8e93;
    }
    
    .loader-progress {
        background: rgba(255, 255, 255, 0.1);
    }
}


@media (max-width: 768px) {
    .loader-logo {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
        margin-bottom: 1.5rem;
    }
    
    .loader-spinner {
        width: 50px;
        height: 50px;
        margin-bottom: 1.5rem;
    }
    
    .loader-progress {
        width: 150px;
    }
}


@media (prefers-reduced-motion: reduce) {
    .screen-loader * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}


.loader-complete .loader-logo {
    animation: logoComplete 0.6s ease-out forwards;
}

.loader-complete .loader-spinner {
    animation: spinnerComplete 0.8s ease-out forwards;
}

.loader-complete .loader-text {
    animation: textComplete 0.6s ease-out forwards;
}

@keyframes logoComplete {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes spinnerComplete {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

@keyframes textComplete {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}