/* Loader Overlay */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loader-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

/* Loader Container */
.loader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* Spinner Animation */
.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #ff6b35;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

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

/* Loader Text */
.loader-text {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    color: #333;
    font-weight: 500;
    text-align: center;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Dots Animation */
.loader-dots {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.loader-dot {
    width: 8px;
    height: 8px;
    background: #ff6b35;
    border-radius: 50%;
    animation: bounce 1.4s ease-in-out infinite both;
}

.loader-dot:nth-child(1) { animation-delay: -0.32s; }
.loader-dot:nth-child(2) { animation-delay: -0.16s; }
.loader-dot:nth-child(3) { animation-delay: 0s; }

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

/* Alternative Loader Styles */
.loader-bars {
    display: flex;
    gap: 4px;
    align-items: end;
}

.loader-bar {
    width: 6px;
    height: 30px;
    background: linear-gradient(to top, #ff6b35, #ff8c42);
    border-radius: 3px;
    animation: bars 1.2s ease-in-out infinite;
}

.loader-bar:nth-child(1) { animation-delay: 0s; }
.loader-bar:nth-child(2) { animation-delay: 0.1s; }
.loader-bar:nth-child(3) { animation-delay: 0.2s; }
.loader-bar:nth-child(4) { animation-delay: 0.3s; }
.loader-bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes bars {
    0%, 40%, 100% {
        transform: scaleY(0.4);
        opacity: 0.5;
    }
    20% {
        transform: scaleY(1);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .loader-spinner {
        width: 50px;
        height: 50px;
        border-width: 3px;
    }
    
    .loader-text {
        font-size: 14px;
    }
    
    .loader-container {
        gap: 15px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .loader-overlay {
        background: rgba(0, 0, 0, 0.95);
    }
    
    .loader-text {
        color: #fff;
    }
    
    .loader-spinner {
        border-color: #333;
        border-top-color: #ff6b35;
    }
}