:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, var(--background-color) 0%, #1e293b 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.chat-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.chat-area {
    flex: 1;
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.chat-messages {
    flex: 1;
    background: var(--surface-color);
    border-radius: 20px;
    padding: 20px;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.sidebar {
    width: 300px;
    background: var(--surface-color);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.sidebar h3 {
    margin-bottom: 15px;
    color: var(--accent-color);
    font-size: 1.2rem;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quick-btn {
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--text-primary);
    padding: 12px 15px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    font-size: 0.9rem;
}

.quick-btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.message {
    margin-bottom: 20px;
    padding: 15px 20px;
    border-radius: 18px;
    max-width: 80%;
    animation: fadeIn 0.3s ease;
}

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

.user-message {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

.bot-message {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-right: auto;
    border-bottom-left-radius: 5px;
}

.message-content {
    line-height: 1.6;
}

.message-content h3 {
    color: var(--accent-color);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.message-content ul, .message-content ol {
    margin: 10px 0;
    padding-left: 20px;
}

.message-content li {
    margin-bottom: 5px;
}

.pointer-list {
    background: rgba(6, 182, 212, 0.1);
    border-left: 4px solid var(--accent-color);
    padding: 15px;
    margin: 15px 0;
    border-radius: 8px;
}

.input-area {
    display: flex;
    gap: 10px;
    background: var(--surface-color);
    padding: 20px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

#user-input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#user-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.2);
}

#send-btn {
    padding: 15px 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

#send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

.typing-indicator {
    display: none;
    padding: 15px 20px;
    color: var(--text-secondary);
    font-style: italic;
}

.typing-dots {
    display: inline-block;
}

.typing-dots span {
    animation: typing 1.4s infinite;
    opacity: 0;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% { opacity: 0; }
    30% { opacity: 1; }
}

.pantun {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(251, 191, 36, 0.1));
    border-left: 4px solid var(--warning-color);
    padding: 15px;
    margin: 15px 0;
    border-radius: 8px;
    font-style: italic;
}

.recommendation {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(34, 197, 94, 0.1));
    border-left: 4px solid var(--success-color);
    padding: 15px;
    margin: 15px 0;
    border-radius: 8px;
}

.source-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.source-link:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .chat-area {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        order: -1;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .message {
        max-width: 90%;
    }
    
    .chat-container {
        padding: 10px;
        height: auto;
    }
}

/* Scrollbar Styling */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}