.whats-new-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.whats-new-overlay.active {
    opacity: 1;
    visibility: visible;
}

.whats-new-modal {
    background: #1e2024;
    border-radius: 16px;
    border: 1px solid rgba(251, 191, 36, 0.2);
    width: 100%;
    max-width: 420px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform 0.2s ease;
    position: relative;
}

.whats-new-overlay.active .whats-new-modal {
    transform: scale(1);
}

.whats-new-header {
    padding: 20px 20px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.whats-new-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: #fbbf24;
}

.whats-new-title svg {
    width: 22px;
    height: 22px;
    stroke: #fbbf24;
    stroke-width: 2;
    fill: none;
}

.whats-new-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.whats-new-version {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    background: rgba(251, 191, 36, 0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

.whats-new-close-x {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.whats-new-close-x:hover {
    background: rgba(255, 255, 255, 0.1);
}

.whats-new-close-x svg {
    width: 18px;
    height: 18px;
    stroke: rgba(255, 255, 255, 0.7);
    stroke-width: 2;
}

.whats-new-content {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.whats-new-section {
    margin-bottom: 16px;
}

.whats-new-section:last-child {
    margin-bottom: 0;
}

.whats-new-section-title {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.whats-new-section-title svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

.whats-new-section-title.fixes {
    color: #4ade80;
}

.whats-new-section-title.features {
    color: #60a5fa;
}

.whats-new-section-title.coming {
    color: #a78bfa;
}

.whats-new-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.whats-new-list li {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.whats-new-list li:last-child {
    border-bottom: none;
}

.whats-new-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #fbbf24;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 6px;
}

.whats-new-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: center;
    flex-shrink: 0;
}

.whats-new-close-btn {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #000;
    border: none;
    padding: 12px 40px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    max-width: 200px;
}

.whats-new-close-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}

.whats-new-close-btn:active {
    transform: translateY(0);
}

@media (max-width: 480px) {
    .whats-new-overlay {
        padding: 0;
        align-items: flex-end;
    }
    
    .whats-new-modal {
        max-height: 90vh;
        border-radius: 20px 20px 0 0;
        max-width: 100%;
    }
    
    .whats-new-header {
        padding: 16px;
    }
    
    .whats-new-title {
        font-size: 16px;
    }
    
    .whats-new-title svg {
        width: 20px;
        height: 20px;
    }
    
    .whats-new-version {
        font-size: 11px;
        padding: 3px 8px;
    }
    
    .whats-new-close-x {
        width: 36px;
        height: 36px;
    }
    
    .whats-new-content {
        padding: 16px;
    }
    
    .whats-new-footer {
        padding: 12px 16px 16px;
    }
    
    .whats-new-close-btn {
        max-width: 100%;
        padding: 14px 40px;
        font-size: 15px;
    }
}

@media (max-height: 600px) {
    .whats-new-modal {
        max-height: 95vh;
    }
    
    .whats-new-content {
        padding: 16px;
    }
}