/* Dark theme matching MyLittleAgi Compose Desktop GUI */
:root {
    --dark-background: #1E1F2E;
    --dark-sidebar: #171821;
    --dark-card: #25263A;
    --blue-accent: #5A87F5;
    --text-primary: #E4E4E7;
    --text-secondary: #9CA3AF;
    --border-color: #2D2E3F;
    --hover-color: #2D2E45;
    --error-color: #EF4444;
    --success-color: #10B981;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--dark-background);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--dark-sidebar);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.new-chat-btn {
    margin: 12px 16px;
    padding: 10px 16px;
    background-color: var(--blue-accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.2s;
}

.new-chat-btn:hover {
    opacity: 0.9;
}

.btn-icon {
    font-size: 18px;
    font-weight: bold;
}

.sidebar-section {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-item {
    padding: 8px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 14px;
    transition: background-color 0.15s;
}

.sidebar-item:hover {
    background-color: var(--hover-color);
    color: var(--text-primary);
}

.item-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.section-title {
    padding: 8px 20px 4px;
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.recent-chat {
    padding: 8px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background-color 0.15s;
}

.recent-chat:hover,
.recent-chat.active {
    background-color: var(--hover-color);
    color: var(--text-primary);
}

.sidebar-footer {
    margin-top: auto;
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.upgrade-btn {
    padding: 8px 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.upgrade-btn:hover {
    border-color: var(--blue-accent);
    color: var(--text-primary);
}

/* Chat Area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.welcome-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    gap: 12px;
}

.welcome-message h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
}

.welcome-message p {
    color: var(--text-secondary);
    font-size: 15px;
}

.action-cards {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.action-card {
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-primary);
    transition: border-color 0.2s, background-color 0.2s;
}

.action-card:hover {
    border-color: var(--blue-accent);
    background-color: var(--hover-color);
}

.card-icon {
    font-size: 20px;
}

/* Message Bubbles */
.message {
    max-width: 720px;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    word-wrap: break-word;
}

.message.user {
    background-color: var(--blue-accent);
    color: white;
    align-self: flex-end;
    margin-left: auto;
}

.message.system {
    background-color: var(--dark-card);
    color: var(--text-primary);
    align-self: flex-start;
}

.message.error {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
    align-self: flex-start;
}

.message .password-value {
    font-family: 'Courier New', Courier, monospace;
    background-color: rgba(90, 135, 245, 0.15);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

/* Chat Input */
.chat-input-container {
    padding: 16px 24px 24px;
    border-top: 1px solid var(--border-color);
}

.chat-input-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 4px;
    max-width: 768px;
    margin: 0 auto;
}

.chat-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    padding: 10px 12px;
    outline: none;
}

.chat-input::placeholder {
    color: var(--text-secondary);
}

.send-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background-color: var(--blue-accent);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: opacity 0.2s;
    flex-shrink: 0;
}

.send-btn:hover {
    opacity: 0.9;
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Loading indicator */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    border-top-color: var(--blue-accent);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

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

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

.chat-messages::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}