/* Custom Styles for Compresit */

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
}

/* Button Styles */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(240, 147, 251, 0.5);
}

.btn-disabled {
    background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
    color: white;
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    border: none;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Format Tabs */
.format-tab {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    background: transparent;
    border: none;
    position: relative;
}

.format-tab:hover {
    color: #8b5cf6;
    background: rgba(139, 92, 246, 0.1);
}

.format-tab.active {
    color: #8b5cf6;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.2);
}

/* Drop Zone */
.drop-zone {
    border: 3px dashed #c4b5fd;
    border-radius: 1.5rem;
    padding: 4rem 2rem;
    text-align: center;
    transition: all 0.4s ease;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(245, 243, 255, 0.9) 100%);
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.drop-zone.drag-over {
    border-color: #8b5cf6;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(196, 181, 253, 0.1) 100%);
    transform: scale(1.02);
    box-shadow: 0 10px 40px rgba(139, 92, 246, 0.3);
}

/* Thumbnail Card */
.thumbnail-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 1.25rem;
    position: relative;
    border: 1px solid rgba(139, 92, 246, 0.1);
    transition: all 0.3s ease;
}

.thumbnail-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.3);
}

/* Quality Slider */
.quality-slider {
    width: 100%;
    height: 0.5rem;
    background: #e5e7eb;
    border-radius: 0.5rem;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.quality-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1rem;
    height: 1rem;
    background: #2563eb;
    border-radius: 50%;
    cursor: pointer;
}

.quality-slider::-moz-range-thumb {
    width: 1rem;
    height: 1rem;
    background: #2563eb;
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.thumbnail-card {
    animation: fadeIn 0.3s ease-out;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .drop-zone {
        padding: 2rem 1rem;
    }

    .btn-primary,
    .btn-secondary,
    .btn-disabled {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
}

/* Progress bar animation */
.progress-bar {
    transition: width 0.3s ease-out;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}