/* General Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    transition: background-color 0.3s ease;
}

/* Welcome Screen */
#welcome-screen {
    background: linear-gradient(135deg, #6366F1 0%, #3B82F6 100%);
    background-size: cover;
    position: relative;
}

#welcome-screen::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="white" fill-opacity="0.05"/></svg>');
    background-size: 300px 300px;
    z-index: 0;
}

.welcome-card {
    z-index: 1;
    position: relative;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

/* Chat Section */
#chat-messages {
    scrollbar-width: thin;
    scrollbar-color: rgba(156, 163, 175, 0.5) transparent;
}

#chat-messages::-webkit-scrollbar {
    width: 6px;
}

#chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

#chat-messages::-webkit-scrollbar-thumb {
    background-color: rgba(156, 163, 175, 0.5);
    border-radius: 20px;
}

.chat-message {
    animation: fadeIn 0.3s ease-in-out;
}

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

.message-bubble {
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message-bubble::after {
    content: '';
    position: absolute;
    left: -6px;
    top: 10px;
    width: 12px;
    height: 12px;
    background: inherit;
    transform: rotate(45deg);
    z-index: -1;
}

/* Task List Styles */
.task-item {
    transition: all 0.2s ease;
}

.task-item:hover {
    background-color: rgba(243, 244, 246, 0.5);
}

.task-item.dark:hover {
    background-color: rgba(55, 65, 81, 0.5);
}

.task-complete {
    text-decoration: line-through;
    opacity: 0.7;
}

.task-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: #3B82F6;
}

input:focus + .slider {
    box-shadow: 0 0 1px #3B82F6;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Responsive Layout */
@media (max-width: 768px) {
    #sidebar {
        width: 240px;
    }
    
    .section-content {
        padding: 1rem;
    }
}

/* Animation Classes */
.slide-in {
    animation: slideIn 0.3s forwards;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}