/* Terabox Downloader Styles */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-bg {
    background: linear-gradient(-45deg, #007BFF, #00BFFF, #1E90FF, #4169E1, #4682B4, #6495ED);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

.input-focus-effect {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.input-focus-effect:focus {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 123, 255, 0.2);
}

.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.loading {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #007BFF;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.button-hover {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 123, 255, 0.3);
}

.hide {
    display: none;
}

.media-container {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: #f3f3f3;
    border-radius: 2px;
    overflow: hidden;
}

.progress-value {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #007BFF, #00BFFF);
    transition: width 0.3s ease;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.footer-link {
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #007BFF;
}

.paste-button {
    transition: background-color 0.2s ease;
}

.paste-button:hover {
    background-color: #e2e8f0;
}

#popupOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#popup {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

#popup button {
    margin: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

#popup button:hover {
    background: #007BFF;
    color: white;
}

.language-selector {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 1.5em 1.5em;
}

/* Quick Checklist Horizontal Scroll */
.checklist-scroll {
    display: flex;
    overflow-x: auto;
    gap: 1rem;
    padding: 1rem 0;
    scroll-behavior: smooth;
}

.checklist-scroll::-webkit-scrollbar {
    height: 8px;
}

.checklist-scroll::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.checklist-scroll::-webkit-scrollbar-thumb {
    background: #007BFF;
    border-radius: 4px;
}

.checklist-item {
    min-width: 280px;
    flex-shrink: 0;
}

/* Enhanced Hero Section Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* Enhanced Hero Section Styles */
.hero-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="20" cy="60" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="30" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.download-section {
    background: linear-gradient(145deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 24px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.download-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.input-group {
    position: relative;
}

.input-group input {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 16px;
    padding: 1rem 3rem 1rem 1.5rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.input-group input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 8px 16px -4px rgba(59, 130, 246, 0.2);
}

.download-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border: none;
    border-radius: 16px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 16px -4px rgba(59, 130, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

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

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -4px rgba(59, 130, 246, 0.5);
}

.feature-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* FAQ Styles */
.faq-item {
    margin-bottom: 1rem;
}

.faq-question:hover {
    background-color: #f3f4f6;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
}

.faq-answer.active {
    display: block;
}

/* Step Cards */
.step-card {
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
    margin: 0 auto 1rem;
}

/* Feature Cards */
.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Format Cards */
.format-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.format-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

/* Device Cards */
.device-card, .browser-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.device-card:hover, .browser-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
}

/* Troubleshoot Cards */
.troubleshoot-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #3b82f6;
}

/* Country Items */
.country-item {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.country-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    background: #f8fafc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .download-section {
        padding: 2rem;
    }
    
    .checklist-scroll {
        padding-bottom: 1rem;
    }
    
    .checklist-item {
        min-width: 250px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    .step-card, .format-card {
        margin-bottom: 1rem;
    }
    
    .device-card, .browser-card {
        padding: 1rem;
    }
    
    .country-item {
        font-size: 0.75rem;
        padding: 0.75rem;
    }
    
/* Additional Section Styles */
#online-vs-app .bg-green-50,
#online-vs-app .bg-red-50,
#online-vs-app .bg-blue-50 {
    transition: all 0.3s ease;
}

#online-vs-app .bg-green-50:hover,
#online-vs-app .bg-red-50:hover,
#online-vs-app .bg-blue-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#file-types .bg-white {
    transition: all 0.3s ease;
}

#file-types .bg-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#speed-up .bg-blue-50,
#speed-up .bg-green-50,
#speed-up .bg-purple-50,
#speed-up .bg-orange-50 {
    transition: all 0.3s ease;
}

#speed-up .bg-blue-50:hover,
#speed-up .bg-green-50:hover,
#speed-up .bg-purple-50:hover,
#speed-up .bg-orange-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#advanced-tips .bg-indigo-50,
#advanced-tips .bg-teal-50,
#advanced-tips .bg-pink-50 {
    transition: all 0.3s ease;
}

#advanced-tips .bg-indigo-50:hover,
#advanced-tips .bg-teal-50:hover,
#advanced-tips .bg-pink-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#safety-privacy .bg-green-50,
#safety-privacy .bg-blue-50,
#safety-privacy .bg-purple-50,
#safety-privacy .bg-orange-50 {
    transition: all 0.3s ease;
}

#safety-privacy .bg-green-50:hover,
#safety-privacy .bg-blue-50:hover,
#safety-privacy .bg-purple-50:hover,
#safety-privacy .bg-orange-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#glossary .bg-gray-50 {
    transition: all 0.3s ease;
}

#glossary .bg-gray-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#case-studies .bg-yellow-50,
#case-studies .bg-blue-50,
#case-studies .bg-green-50 {
    transition: all 0.3s ease;
}

#case-studies .bg-yellow-50:hover,
#case-studies .bg-blue-50:hover,
#case-studies .bg-green-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#legal-responsibility .bg-red-50,
#legal-responsibility .bg-blue-50,
#legal-responsibility .bg-green-50 {
    transition: all 0.3s ease;
}

#legal-responsibility .bg-red-50:hover,
#legal-responsibility .bg-blue-50:hover,
#legal-responsibility .bg-green-50:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}