/* Chat-specific styles */

.chat-main-content {
    flex: 1;
    display: flex;
    flex-direction: row;
    background: var(--bg-primary);
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    height: 100%;
    position: relative;
}

/* Conversation Header */
.conversation-header {
    flex-shrink: 0;
    z-index: 20;
    padding: 0.75rem 2rem;
    width: 100%;
    background: linear-gradient(to bottom, var(--bg-primary) 0%, var(--bg-primary) 85%, transparent 100%);
}

.conversation-header-content {
    position: relative;
    width: fit-content;
}

.conversation-header-content > div:first-child {
    padding: 0.375rem 0.5rem;
    margin: -0.375rem -0.5rem;
    border-radius: 8px;
    transition: background-color 0.15s ease;
}

.conversation-header-content > div:first-child:hover { background-color: var(--bg-tertiary); }

.conversation-header-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin: 0;
    user-select: none;
}

.conversation-header-menu-btn {
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.conversation-header-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    z-index: 10002;
    min-width: 160px;
    display: none;
    overflow: hidden;
    padding: 0.25rem 0;
    margin-top: 0.25rem;
}

.conversation-header-dropdown.show { display: block; }

.conversation-header-dropdown button {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: none;
    background: transparent;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.15s ease;
}

.conversation-header-dropdown button:hover { background: var(--bg-tertiary); }
.conversation-header-dropdown button:disabled { opacity: 0.4; cursor: not-allowed; }
.conversation-header-dropdown button.delete-option { color: var(--coral); }
.conversation-header-dropdown button.delete-option:hover { background: rgba(217, 58, 91, 0.15); }

/* Chat Messages */
.chat-messages {
    flex: 1 1 0;
    min-height: 0;
    overflow-y: auto;
    padding: 1rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.chat-messages::-webkit-scrollbar { width: 6px; }
.chat-messages::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.chat-spacer {
    min-height: calc(50vh);
    flex-shrink: 0;
    transition: min-height 0.3s ease-out;
}

/* Welcome Message */
.welcome-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin: auto;
    padding: 2rem;
}

.welcome-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 16px rgba(192, 150, 92, 0.15);
}

.welcome-icon svg { color: var(--accent); }

.welcome-message h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
}

.welcome-message p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 0;
    max-width: 450px;
}

.welcome-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
    justify-content: center;
}

.suggestion-button {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    max-width: 260px;
}

.suggestion-button:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(192, 150, 92, 0.15);
}

/* Chat Messages */
.chat-message {
    display: flex;
    animation: slideIn 0.3s ease-out;
}

.chat-message-user { align-self: flex-start; width: 100%; }
.chat-message-assistant {
    align-self: flex-start;
    flex-direction: column;
    width: 100%;
}

.chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chat-message-user .chat-avatar {
    background: var(--bg-surface);
    color: var(--accent);
}

.chat-message-user .chat-message-content {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.chat-message-assistant .chat-message-content {
    background: transparent;
    color: var(--text-primary);
    padding: 0;
    width: 100%;
    font-size: 0.95rem;
    line-height: 1.7;
}

.chat-message-assistant .chat-message-content p { margin: 0 0 0.75em 0; }
.chat-message-assistant .chat-message-content p:last-child { margin-bottom: 0; }

.chat-message-assistant .chat-message-content h1,
.chat-message-assistant .chat-message-content h2,
.chat-message-assistant .chat-message-content h3 {
    margin: 0.75em 0 0.25em 0;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-message-assistant .chat-message-content h3 { font-size: 1.05rem; }

.chat-message-assistant .chat-message-content strong {
    font-weight: 600;
    color: var(--accent);
}

.chat-message-assistant .chat-message-content code {
    background: var(--bg-tertiary);
    padding: 0.15em 0.35em;
    border-radius: 3px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 0.875em;
    color: var(--coral);
}

.chat-message-assistant .chat-message-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
    margin: 0.5em 0;
    color: var(--text-secondary);
    font-style: italic;
}

.chat-message-assistant .chat-message-content pre {
    background: #0a0c14;
    color: #e2e0e8;
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    margin: 0.75em 0;
    font-size: 0.85em;
    border: 1px solid var(--border-color);
}

.chat-message-assistant .chat-message-content pre code {
    background: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

.chat-message-assistant .chat-message-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 0.75em 0;
    font-size: 0.9em;
}

.chat-message-assistant .chat-message-content th,
.chat-message-assistant .chat-message-content td {
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.chat-message-assistant .chat-message-content th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--accent);
}

.chat-message-assistant .chat-message-content tr:nth-child(even) { background: var(--bg-secondary); }

.chat-message-assistant .chat-message-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1em 0;
}

.chat-message-assistant .chat-message-content ul,
.chat-message-assistant .chat-message-content ol {
    padding-left: 1.5em;
    margin: 0.5em 0;
}

.chat-message-assistant .chat-message-content li { margin: 0.25em 0; }

/* Sources */
.message-sources {
    margin-top: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.message-sources a {
    color: var(--accent);
    text-decoration: none;
}

.message-sources a:hover { text-decoration: underline; }

/* Thinking Steps (inline with message) */
.thinking-steps-container {
    margin-bottom: 0.75rem;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.thinking-steps-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.thinking-steps-toggle:hover {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

.thinking-steps-toggle svg { transition: transform 0.2s ease; }
.thinking-steps-toggle.expanded svg { transform: rotate(180deg); }

.thinking-steps-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    border-top: 1px solid var(--border-color);
}

.thinking-steps-content.expanded {
    max-height: 400px;
    overflow-y: auto;
}

.thinking-step {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    align-items: flex-start;
}

.thinking-step:last-child { border-bottom: none; }

.thinking-step-icon { flex-shrink: 0; margin-top: 0.1rem; }
.thinking-step-icon.thinking { color: var(--purple); }
.thinking-step-icon.tool { color: var(--accent); }
.thinking-step-icon.tool-result { color: var(--green); }

.thinking-step-text {
    color: var(--text-secondary);
    line-height: 1.4;
    word-break: break-word;
}

.thinking-step-text strong { color: var(--text-primary); }

.tool-input {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    word-break: break-all;
}

/* Chat Input */
.chat-input-container {
    flex-shrink: 0;
    padding: 1rem 2rem 1.5rem;
    position: relative;
}

.chat-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-surface);
    border-radius: 24px;
    padding: 6px;
    border: 1px solid var(--border-color);
    transition: border-color 0.2s ease;
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(192, 150, 92, 0.15);
}

#chatInput {
    flex: 1;
    border: none;
    border-radius: 18px;
    padding: 0.625rem 1rem;
    font-size: 0.95rem;
    min-height: 40px;
    max-height: 120px;
    resize: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
    line-height: 1.4;
}

#chatInput::placeholder { color: var(--text-muted); }

.chat-send-button {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--accent);
    color: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    margin: 2px;
}

.chat-send-button:hover { background: var(--accent-hover); transform: scale(1.05); }
.chat-send-button:disabled { background: var(--border-color); cursor: not-allowed; transform: none; }

/* Scroll to Bottom */
.scroll-to-bottom-button {
    position: absolute;
    bottom: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.scroll-to-bottom-button.visible { opacity: 1; pointer-events: auto; }
.scroll-to-bottom-button:hover { background: var(--bg-tertiary); color: var(--accent); }

/* Streaming Indicators */
.chat-thinking-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 0.25rem 0;
}

.chat-thinking-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.chat-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--accent);
    animation: blink 0.8s infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.tool-step-spinner {
    width: 12px;
    height: 12px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

.tool-step-result.loading { color: var(--text-muted); }
.tool-step-result.success { color: var(--green); }
.tool-step-result.error { color: var(--coral); }

/* Responsive */
@media (max-width: 768px) {
    .chat-messages { padding: 1rem; }
    .chat-input-container { padding: 0.75rem 1rem; }
}