/* Custom styles for YouTube Subtitle Extractor */

body {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    min-height: 100vh;
}

.card {
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.05);
}

.subtitle-preview {
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--bs-light);
    background: transparent;
    border: none;
}

.subtitle-preview::-webkit-scrollbar {
    width: 8px;
}

.subtitle-preview::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.subtitle-preview::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

.subtitle-preview::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Input focus effects */
.form-control:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Button hover effects */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Loading animation */
.spinner-border {
    animation: spinner-border 0.75s linear infinite;
}

/* Feature icons */
.bg-opacity-10 {
    transition: all 0.3s ease;
}

.bg-opacity-10:hover {
    transform: scale(1.1);
}

/* Alert animations */
.alert {
    animation: slideInDown 0.5s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Success section animation */
#successSection {
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1.5rem !important;
    }
    
    .subtitle-preview {
        font-size: 0.8rem;
        max-height: 200px;
    }
}

/* Dark theme enhancements */
[data-bs-theme="dark"] .card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .form-control {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--bs-light);
}

[data-bs-theme="dark"] .form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* YouTube brand color for icon */
.text-danger {
    color: #ff0000 !important;
}

/* Smooth transitions */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* Footer styling */
footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
}

/* Toast notifications positioning */
.position-fixed.top-0.start-50 {
    z-index: 9999;
    max-width: 90vw;
    margin-top: 1rem;
}