/* ============================================================
   Pocharlies Agent — Chat UI Theme
   ============================================================ */

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #e94560;
    --accent-hover: #c73e54;
    --success: #4caf50;
    --warning: #ff9800;
    --error: #f44336;
    --border: #2a2a4a;
    --user-msg: #1a3a5c;
    --assistant-msg: #2a2a3e;
    --tool-bg: #1a2a3a;
    --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace;
}

/* ---- Reset ---- */

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

html, body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-primary);
}

/* ---- Layout ---- */

body {
    display: grid;
    grid-template-columns: 280px 1fr;
}

/* ---- Sidebar ---- */

.sidebar {
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    overflow: hidden;
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
}

.btn-new-thread {
    width: 100%;
    padding: 8px 12px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-new-thread:hover {
    background: var(--accent-hover);
}

/* Thread list */

.thread-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.thread-item {
    display: block;
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 4px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.thread-item:hover {
    background: var(--bg-tertiary);
}

.thread-item.active {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
}

.thread-name {
    display: block;
    font-weight: 600;
    margin-bottom: 2px;
}

.thread-preview {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
}

/* MCP section */

.mcp-section {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
}

.mcp-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.mcp-status {
    font-size: 12px;
    color: var(--text-secondary);
}

.mcp-placeholder {
    font-style: italic;
}

/* ---- Chat area ---- */

.chat-area {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Messages */

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    scroll-behavior: smooth;
}

.message {
    max-width: 75%;
    padding: 12px 16px;
    margin-bottom: 12px;
    border-radius: 12px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    animation: messageIn 0.2s ease-out;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    margin-left: auto;
    background: var(--user-msg);
    border-bottom-right-radius: 4px;
}

.message.assistant {
    margin-right: auto;
    background: var(--assistant-msg);
    border-bottom-left-radius: 4px;
}

.message.error {
    margin-right: auto;
    background: rgba(244, 67, 54, 0.15);
    border: 1px solid var(--error);
    color: var(--error);
}

.message-timestamp {
    display: block;
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* ---- Tool calls ---- */

.tool-call {
    max-width: 75%;
    margin-bottom: 12px;
    background: var(--tool-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    animation: messageIn 0.2s ease-out;
}

.tool-call-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(15, 52, 96, 0.5);
    cursor: pointer;
    user-select: none;
    font-size: 12px;
}

.tool-call-header:hover {
    background: rgba(15, 52, 96, 0.8);
}

.tool-call-icon {
    font-size: 14px;
}

.tool-call-name {
    font-weight: 600;
    color: var(--warning);
}

.tool-call-toggle {
    margin-left: auto;
    color: var(--text-secondary);
    font-size: 10px;
    transition: transform 0.2s;
}

.tool-call.expanded .tool-call-toggle {
    transform: rotate(90deg);
}

.tool-call-body {
    display: none;
    padding: 12px;
    border-top: 1px solid var(--border);
}

.tool-call.expanded .tool-call-body {
    display: block;
}

.tool-call-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    margin-top: 8px;
}

.tool-call-label:first-child {
    margin-top: 0;
}

.tool-call-content {
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.2);
    padding: 8px;
    border-radius: 4px;
    max-height: 300px;
    overflow-y: auto;
}

.tool-call-result {
    border-top: 1px solid var(--border);
    padding-top: 8px;
    margin-top: 8px;
}

.tool-call-result .tool-call-label {
    color: var(--success);
}

/* ---- Interrupt ---- */

.interrupt {
    max-width: 75%;
    margin-bottom: 12px;
    padding: 12px 16px;
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid var(--warning);
    border-radius: 8px;
    animation: messageIn 0.2s ease-out;
}

.interrupt-text {
    font-size: 13px;
    margin-bottom: 10px;
    color: var(--warning);
}

.interrupt-buttons {
    display: flex;
    gap: 8px;
}

.btn-approve,
.btn-reject {
    padding: 6px 16px;
    border: none;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    cursor: pointer;
    transition: opacity 0.15s;
}

.btn-approve {
    background: var(--success);
    color: #fff;
}

.btn-reject {
    background: var(--error);
    color: #fff;
}

.btn-approve:hover,
.btn-reject:hover {
    opacity: 0.85;
}

/* ---- Input area ---- */

.input-area {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px 20px 4px;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

.message-input {
    flex: 1;
    resize: none;
    padding: 10px 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.5;
    min-height: 40px;
    max-height: 200px;
    outline: none;
    transition: border-color 0.15s;
}

.message-input:focus {
    border-color: var(--accent);
}

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

.btn-send {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-send:hover {
    background: var(--accent-hover);
}

.send-icon {
    font-size: 16px;
}

.input-hint {
    padding: 2px 20px 0;
    font-size: 10px;
    color: var(--text-secondary);
    background: var(--bg-secondary);
}

/* ---- Status bar ---- */

.status-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: background 0.3s;
}

.status-indicator.connected {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.status-indicator.disconnected {
    background: var(--error);
    box-shadow: 0 0 6px var(--error);
}

/* ---- Scrollbar ---- */

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ---- Help button & popup ---- */

.chat-area {
    position: relative;
}

.help-btn {
    position: absolute;
    top: 12px;
    right: 16px;
    z-index: 10;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 50%;
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.help-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 8px rgba(233, 69, 96, 0.25);
}

.help-overlay {
    position: absolute;
    inset: 0;
    z-index: 20;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.help-overlay.hidden {
    display: none;
}

.help-popup {
    position: absolute;
    top: 52px;
    right: 16px;
    z-index: 30;
    width: 320px;
    max-height: calc(100% - 100px);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: popupIn 0.15s ease-out;
}

.help-popup.hidden {
    display: none;
}

@keyframes popupIn {
    from {
        opacity: 0;
        transform: translateY(-6px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.help-popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.help-popup-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.help-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
    transition: color 0.15s;
}

.help-close-btn:hover {
    color: var(--accent);
}

.help-popup-body {
    padding: 8px;
    overflow-y: auto;
}

.help-group {
    margin-bottom: 6px;
}

.help-group:last-child {
    margin-bottom: 0;
}

.help-group-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-secondary);
    padding: 6px 8px 4px;
}

.help-action {
    display: block;
    width: 100%;
    padding: 7px 10px;
    margin-bottom: 2px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid transparent;
    border-radius: 5px;
    font-family: var(--font-mono);
    font-size: 12px;
    text-align: left;
    cursor: pointer;
    transition: background 0.12s, border-color 0.12s;
}

.help-action:last-child {
    margin-bottom: 0;
}

.help-action:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
    body {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    .help-popup {
        width: calc(100% - 32px);
        right: 16px;
        left: 16px;
    }
}