body {
    font-family: 'Inter', sans-serif;
    background-color: #ffffff;
    color: #333;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Sidebar (Off-canvas di mobile) */
#sidebar {
    background-color: white;
    border-right: 1px solid #e5e7eb;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    background-color: #3b82f6;
    color: white;
    padding: 20px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.new-chat-btn {
    background-color: white;
    border: 1px solid #d1d5db;
    color: #3b82f6;
    border-radius: 12px;
    padding: 12px 16px;
    width: 100%;
    font-weight: 500;
}

.new-chat-btn:hover {
    background-color: #f9fafb;
}

.chat-list {
    padding: 16px;
    overflow-y: auto;
    flex: 1;
}

.chat-item {
    background-color: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 8px;
    cursor: pointer;
}

.chat-item:hover {
    background-color: #f9fafb;
}

.chat-item.active {
    background-color: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

.chat-item.active .chat-time {
    color: rgba(255, 255, 255, 0.9);
}

.chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #3b82f6;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: 600;
    margin-right: 12px;
    flex-shrink: 0;
}

.chat-item.active .chat-avatar {
    background-color: rgba(255, 255, 255, 0.3);
}

.chat-content {
    flex: 1;
    min-width: 0;
}

.chat-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-time {
    font-size: 12px;
    color: #6b7280;
}

/* Main Content */
.main-content {
    background-color: white;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.content-header {
    padding: 20px 24px;
    border-bottom: 1px solid #e5e7eb;
    background-color: white;
}

.model-select {
    background-color: white;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 14px;
    color: #333;
    outline: none;
    width: 100%;
}

.model-select:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.chat-area {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    background-color: white;
    word-break: break-word;
}

.message {
    animation: fadeIn 0.4s ease-out;
    margin-bottom: 16px;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.message.user {
    margin-left: auto;
    margin-right: 0;
    max-width: 70%;
}

.message.assistant {
    margin-left: 0;
    margin-right: auto;
    max-width: 80%;
}

.message-content {
    padding: 16px 20px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.5;
    border: 1px solid #e5e7eb;
    word-break: break-word;
}

.message.user .message-content {
    background-color: #3b82f6;
    color: white;
    border-bottom-right-radius: 6px;
    border-color: #3b82f6;
}

.message.assistant .message-content {
    background-color: white;
    color: #333;
    border-bottom-left-radius: 6px;
}

/* Input Area - Sticky di bawah */
.input-area {
    padding: 20px 24px;
    border-top: 1px solid #e5e7eb;
    background-color: white;
    position: sticky;
    bottom: 0;
    z-index: 10;
}

.input-container {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.message-input {
    flex: 1;
    background-color: white;
    border: 1px solid #d1d5db;
    border-radius: 16px;
    padding: 12px 16px;
    font-size: 14px;
    color: #333;
    outline: none;
    resize: none;
    min-height: 44px;
    max-height: 120px;
    width: 100%;
    box-sizing: border-box;
}

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

.send-button {
    background-color: #3b82f6;
    color: white;
    border: none;
    border-radius: 16px;
    padding: 12px 20px;
    font-weight: 600;
    cursor: pointer;
    min-height: 44px;
    min-width: 80px;
}

.send-button:hover:not(:disabled) {
    background-color: #2563eb;
}

.send-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.welcome-message {
    text-align: center;
    color: #666;
    margin-top: 60px;
}

.welcome-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.8;
}

.welcome-title {
    font-size: 24px;
    font-weight: 600;
    color: #3b82f6;
    margin-bottom: 8px;
}

.welcome-subtitle {
    font-size: 14px;
    opacity: 0.7;
}

.typing-indicator {
    display: none;
    margin-bottom: 16px;
}

.typing-indicator.show {
    display: block;
}

.typing-content {
    max-width: 80%;
    padding: 16px 20px;
    border-radius: 18px;
    border-bottom-left-radius: 6px;
    background-color: white;
    border: 1px solid #e5e7eb;
    color: #666;
    font-size: 14px;
}

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

/* Context Menu */
.context-menu {
    position: absolute;
    background-color: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    z-index: 50;
    min-width: 160px;
}

.context-menu-item {
    padding: 12px 16px;
    cursor: pointer;
    color: #333;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.context-menu-item:hover {
    background-color: #eff6ff;
    color: #3b82f6;
}

.context-menu-item.delete:hover {
    background-color: #fef2f2;
    color: #dc2626;
}

.context-menu-divider {
    height: 1px;
    background-color: #e5e7eb;
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Debug Panel */
.debug-panel {
    position: fixed;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 12px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    max-width: 320px;
    display: none;
    z-index: 1000;
}

.debug-toggle {
    position: fixed;
    top: 10px;
    right: 10px;
    background: #3b82f6;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    z-index: 1001;
    font-size: 12px;
    font-weight: 500;
}

ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin: 0.5rem 0;
}

li {
    margin: 0.25rem 0;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .message.user,
    .message.assistant {
        max-width: 90%;
    }

    .input-container {
        flex-direction: column;
        align-items: stretch;
    }

    .send-button {
        padding: 14px;
        border-radius: 16px;
    }
}

/* =============== RESPONSIVE SIDEBAR (MOBILE DRAWER) =============== */
html, body {
    overflow-x: hidden;
}

#sidebar {
    width: 80vw;
    max-width: 320px;
}

@media (min-width: 768px) {
    #sidebar {
        width: 320px;
        transform: none !important;
    }
}