/* ========================================================================
   Trinity v0.3 — Command Center UI
   Cyberpunk dark theme with sidebar, panels, and status bar
   ======================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600&family=Inter:wght@300;400;500;600&display=swap');

/* ---- Design Tokens ---- */
:root {
    --bg:          #0a0e14;
    --bg-elevated: #111820;
    --bg-surface:  #161d27;
    --bg-hover:    #1c2533;
    --bg-input:    #0d1219;
    --bg-sidebar:  #0e1219;

    --border:       #1a2130;
    --border-focus: #2a3a50;
    --border-subtle:#141c28;

    --text:         #c9d1d9;
    --text-secondary:#8b949e;
    --text-muted:   #484f58;
    --text-bright:  #f0f3f6;

    --green:       #3fb950;
    --green-dim:   #1a7f37;
    --green-glow:  rgba(63, 185, 80, 0.10);
    --green-border:rgba(63, 185, 80, 0.25);
    --blue:        #58a6ff;
    --red:         #f85149;
    --yellow:      #d29922;
    --purple:      #bc8cff;
    --cyan:        #76e3ea;
    --orange:      #f0883e;

    --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --sidebar-w:  250px;
    --topbar-h:   46px;
    --statusbar-h:28px;
    --panel-w:    380px;
    --radius:     8px;
    --radius-sm:  5px;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html, body {
    height: 100%; overflow: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ========================================================================
   APP LAYOUT — Grid: sidebar | main
   ======================================================================== */
.app {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    height: 100vh;
    overflow: hidden;
}

/* ========================================================================
   SIDEBAR
   ======================================================================== */
.sidebar {
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    transition: transform 0.3s var(--ease-out);
    z-index: 100;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-icon {
    color: var(--green);
    font-size: 16px;
    font-weight: 700;
    text-shadow: 0 0 12px rgba(63, 185, 80, 0.4);
}

.brand-name {
    color: var(--text-bright);
    font-weight: 600;
    font-size: 15px;
    letter-spacing: -0.5px;
}

.sidebar-close {
    display: none; /* shown on mobile */
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: color 0.15s, background 0.15s;
}
.sidebar-close:hover { color: var(--text); background: var(--bg-hover); }

/* New Chat Button */
.new-chat-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 12px 12px 8px;
    padding: 9px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.new-chat-btn:hover {
    background: var(--bg-hover);
    border-color: var(--green-border);
    color: var(--green);
}
.new-chat-btn:active { transform: scale(0.97); }

/* Session List */
.sidebar-section {
    flex: 1;
    overflow-y: auto;
    padding: 4px 8px;
}

.section-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding: 8px 8px 6px;
    font-weight: 500;
}

.session-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.session-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    transition: all 0.12s ease;
    position: relative;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: var(--font-mono);
}
.session-item:hover { background: var(--bg-hover); color: var(--text); }
.session-item.active {
    background: var(--green-glow);
    color: var(--green);
    border-left: 2px solid var(--green);
}

.session-item .session-preview {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.session-item .session-delete {
    display: none;
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 2px;
    border-radius: 3px;
    font-size: 11px;
    line-height: 1;
}
.session-item:hover .session-delete { display: block; }
.session-item .session-delete:hover { color: var(--red); background: rgba(248, 81, 73, 0.1); }

.session-group-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 12px 10px 4px;
    font-weight: 500;
}

/* Nav Items */
.sidebar-nav {
    border-top: 1px solid var(--border-subtle);
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    transition: all 0.12s ease;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text); }
.nav-item:active { transform: scale(0.98); }
.nav-item.active { color: var(--green); background: var(--green-glow); }

/* ========================================================================
   MAIN AREA
   ======================================================================== */
.main {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    min-width: 0;
}

/* ---- Top Bar ---- */
.topbar {
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    flex-shrink: 0;
    user-select: none;
}

.topbar-left {
    display: flex; align-items: center; gap: 8px;
}

.hamburger {
    display: none; /* shown on mobile */
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: color 0.15s;
}
.hamburger:hover { color: var(--text); }

.topbar-icon {
    color: var(--green);
    font-size: 14px;
    font-weight: 600;
}

.topbar-title {
    color: var(--text-bright);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: -0.3px;
}

.topbar-sep {
    color: var(--text-muted);
    font-weight: 300;
    font-size: 16px;
}

.topbar-right {
    display: flex; align-items: center; gap: 6px;
}

.topbar-btn {
    background: none;
    border: 1px solid transparent;
    color: var(--text-muted);
    padding: 5px 7px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.12s ease;
    display: flex; align-items: center; justify-content: center;
}
.topbar-btn:hover { color: var(--text); background: var(--bg-hover); }
.topbar-btn:active { transform: scale(0.95); }

/* Status Indicator */
.status-indicator {
    display: flex; align-items: center; gap: 5px;
    font-size: 11px;
    color: var(--text-muted);
    padding-right: 8px;
    border-right: 1px solid var(--border);
    margin-right: 6px;
}

.status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: background 0.3s;
}
.status-dot.connected {
    background: var(--green);
    box-shadow: 0 0 6px rgba(63, 185, 80, 0.5);
}
.status-dot.connecting {
    background: var(--yellow);
    animation: pulse 1.2s ease-in-out infinite;
}
.status-dot.disconnected { background: var(--red); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ---- Chat Area ---- */
.chat-area {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.chat-scroll {
    height: 100%;
    overflow-y: auto;
    padding: 24px 20px 20px;
    max-width: 820px;
    margin: 0 auto;
    width: 100%;
}

/* ---- Welcome ---- */
.welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 20px 40px;
    text-align: center;
    animation: fadeIn 0.5s var(--ease-out);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.welcome-brand { margin-bottom: 16px; }

.ascii-art {
    font-family: var(--font-mono);
    font-size: 10px;
    line-height: 1.2;
    font-weight: 500;
    white-space: pre;
    color: var(--green);
    text-shadow: 0 0 30px rgba(63, 185, 80, 0.25);
    display: block;
    letter-spacing: -0.5px;
}

.brand-tag {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2.5px;
    margin-top: 10px;
    font-weight: 400;
}

.welcome-divider {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-dim), transparent);
    margin: 20px auto;
}

.welcome-text {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 24px;
    line-height: 1.7;
    font-family: var(--font-sans);
}

.welcome-hints {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.hint {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}
.hint-icon { color: var(--text-muted); font-size: 12px; }
.hint:hover {
    border-color: var(--green-border);
    color: var(--green);
    background: var(--green-glow);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(63, 185, 80, 0.08);
}
.hint:active { transform: scale(0.97) translateY(0); }

/* ---- Messages ---- */
.msg {
    margin-bottom: 20px;
    animation: msgIn 0.25s var(--ease-out);
}

@keyframes msgIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.msg-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 12px;
}

.msg-role {
    font-weight: 600;
    text-transform: lowercase;
    letter-spacing: 0.3px;
}
.msg.user .msg-role { color: var(--blue); }
.msg.assistant .msg-role { color: var(--green); }

.msg-ts {
    color: var(--text-muted);
    font-size: 10px;
    font-weight: 400;
}

.msg-body {
    padding: 0;
    color: var(--text);
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.7;
    font-family: var(--font-sans);
    font-size: 14px;
}
.msg.user .msg-body {
    color: var(--text-bright);
    font-family: var(--font-mono);
    font-size: 13px;
}

.msg-body p { margin-bottom: 10px; }
.msg-body p:last-child { margin-bottom: 0; }

/* Code */
.msg-body code {
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--cyan);
}

.msg-body pre {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 10px 0;
    font-size: 12px;
    line-height: 1.6;
    position: relative;
}

.msg-body pre code {
    background: none;
    border: none;
    padding: 14px 16px;
    color: var(--text);
    display: block;
    font-size: 12px;
}

/* Code block accent bar */
.msg-body pre::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--green-dim);
    border-radius: 3px 0 0 3px;
    opacity: 0.6;
}

/* Copy button on code blocks */
.code-block-wrapper {
    position: relative;
}
.code-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 3px 8px;
    cursor: pointer;
    opacity: 0;
    transition: all 0.15s ease;
    z-index: 2;
}
.code-block-wrapper:hover .code-copy-btn { opacity: 1; }
.code-copy-btn:hover { color: var(--text); background: var(--bg-hover); border-color: var(--green-border); }
.code-copy-btn.copied { color: var(--green); }

/* Language label */
.code-lang-label {
    position: absolute;
    top: 8px;
    left: 12px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.msg-body a { color: var(--blue); text-decoration: none; }
.msg-body a:hover { text-decoration: underline; }
.msg-body strong { color: var(--text-bright); font-weight: 600; }
.msg-body ul, .msg-body ol { padding-left: 20px; margin: 8px 0; }
.msg-body li { margin-bottom: 4px; }
.msg-body li::marker { color: var(--text-muted); }

/* Tables */
.msg-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    font-size: 12px;
    font-family: var(--font-mono);
}
.msg-body th, .msg-body td {
    border: 1px solid var(--border);
    padding: 6px 10px;
    text-align: left;
}
.msg-body th {
    background: var(--bg-surface);
    color: var(--text-bright);
    font-weight: 500;
}
.msg-body td { color: var(--text); }
.msg-body tr:hover td { background: var(--bg-hover); }

/* ---- Tool Blocks ---- */
.tool-block {
    margin: 8px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    animation: msgIn 0.2s var(--ease-out);
}

.tool-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-elevated);
    cursor: pointer;
    font-size: 12px;
    user-select: none;
    transition: background 0.1s;
}
.tool-header:hover { background: var(--bg-hover); }

.tool-header .tool-icon { font-size: 12px; }
.tool-header.running .tool-icon {
    color: var(--yellow);
    animation: spin 1.5s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.tool-header.success .tool-icon { color: var(--green); }
.tool-header.error .tool-icon { color: var(--red); }

.tool-header .tool-label { font-weight: 500; color: var(--purple); }
.tool-header .tool-status { margin-left: auto; color: var(--text-muted); font-size: 11px; }
.tool-header .tool-chevron { color: var(--text-muted); font-size: 10px; transition: transform 0.15s; }
.tool-block.expanded .tool-chevron { transform: rotate(90deg); }

.tool-body {
    display: none;
    padding: 10px 12px;
    background: var(--bg-input);
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
    white-space: pre-wrap;
    max-height: 200px;
    overflow-y: auto;
}
.tool-block.expanded .tool-body { display: block; }

/* ---- Working Indicator ---- */
.working-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 13px;
    animation: msgIn 0.2s var(--ease-out);
}

.working-dots { display: flex; gap: 3px; }
.working-dots span {
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--green);
    animation: dotPulse 1.4s ease-in-out infinite;
}
.working-dots span:nth-child(2) { animation-delay: 0.16s; }
.working-dots span:nth-child(3) { animation-delay: 0.32s; }

@keyframes dotPulse {
    0%, 80%, 100% { transform: scale(0.5); opacity: 0.3; }
    40% { transform: scale(1); opacity: 1; }
}

.working-text { color: var(--text-muted); font-size: 12px; }

/* ---- Typing Cursor ---- */
.cursor-blink::after {
    content: '▎';
    color: var(--green);
    animation: blink 1s step-end infinite;
    font-weight: 300;
    margin-left: 1px;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ---- Input Bar ---- */
.input-bar {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 12px 20px 14px;
    border-top: 1px solid var(--border);
    background: var(--bg);
    flex-shrink: 0;
    max-width: 820px;
    margin: 0 auto;
    width: 100%;
}

.prompt-symbol {
    color: var(--green);
    font-size: 15px;
    font-weight: 500;
    line-height: 38px;
    flex-shrink: 0;
    text-shadow: 0 0 8px rgba(63, 185, 80, 0.3);
}

.input-field {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-bright);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.5;
    padding: 9px 14px;
    resize: none;
    outline: none;
    max-height: 160px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.input-field:focus {
    border-color: var(--green-dim);
    box-shadow: 0 0 0 2px rgba(63, 185, 80, 0.08);
}
.input-field::placeholder { color: var(--text-muted); font-weight: 300; }
.input-field:disabled { opacity: 0.4; cursor: not-allowed; }

.send-btn {
    width: 38px; height: 38px;
    background: var(--green-dim);
    border: none;
    border-radius: var(--radius);
    color: var(--text-bright);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s ease;
}
.send-btn:hover:not(:disabled) {
    background: var(--green);
    color: var(--bg);
    box-shadow: 0 0 12px rgba(63, 185, 80, 0.2);
}
.send-btn:disabled { opacity: 0.15; cursor: not-allowed; }
.send-btn:active:not(:disabled) { transform: scale(0.93); }
.send-btn.stop-mode { background: var(--red); }
.send-btn.stop-mode:hover:not(:disabled) { background: #ff6b6b; }

/* ---- Status Bar ---- */
.status-bar {
    height: var(--statusbar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    background: var(--bg-sidebar);
    border-top: 1px solid var(--border-subtle);
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
    user-select: none;
}

.status-bar-left, .status-bar-center, .status-bar-right {
    display: flex; align-items: center; gap: 6px;
}

.agent-status {
    display: flex; align-items: center; gap: 5px;
}

.agent-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    transition: background 0.3s;
}
.agent-dot.online {
    background: var(--green);
    box-shadow: 0 0 6px rgba(63, 185, 80, 0.5);
}
.agent-dot.offline { background: var(--text-muted); }

.agent-label { font-size: 11px; }

.status-model { color: var(--text-secondary); }
.status-tokens { color: var(--text-muted); }

/* ---- Model Dropdown ---- */
.model-dropdown { position: relative; }

.model-dropdown-btn {
    display: flex; align-items: center; gap: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    background: transparent;
    border: none;
    padding: 4px 8px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.12s;
}
.model-dropdown-btn:hover { color: var(--text-secondary); background: var(--bg-hover); }

.model-dropdown-list {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 240px;
    max-height: 300px;
    overflow-y: auto;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 4px;
}
.model-dropdown.open .model-dropdown-list { display: block; }

.model-option {
    display: flex; align-items: center; justify-content: space-between;
    padding: 7px 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    transition: background 0.1s;
}
.model-option:hover { background: var(--bg-hover); color: var(--text); }
.model-option.active { color: var(--green); background: var(--green-glow); }
.model-option .model-size { font-size: 10px; color: var(--text-muted); }

/* ========================================================================
   PANELS (Slide-out)
   ======================================================================== */
.panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.panel-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.panel {
    position: fixed;
    top: 0; right: 0;
    width: var(--panel-w);
    height: 100vh;
    background: var(--bg-elevated);
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.4);
    z-index: 250;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease-out);
}
.panel.open { transform: translateX(0); }

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.panel-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-bright);
    font-family: var(--font-mono);
}

.panel-close {
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: all 0.12s;
}
.panel-close:hover { color: var(--text); background: var(--bg-hover); }

.panel-search {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.panel-search-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 12px;
    outline: none;
    transition: border-color 0.2s;
}
.panel-search-input:focus { border-color: var(--green-dim); }
.panel-search-input::placeholder { color: var(--text-muted); }

.panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
}

.panel-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 0;
    font-size: 12px;
}

.panel-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.panel-action-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 6px 14px;
    cursor: pointer;
    transition: all 0.12s;
}
.panel-action-btn:hover { background: var(--bg-hover); color: var(--text); }
.panel-action-btn.danger:hover { color: var(--red); border-color: rgba(248, 81, 73, 0.3); background: rgba(248, 81, 73, 0.08); }

/* Memory Item */
.memory-item {
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    margin-bottom: 8px;
    transition: all 0.12s;
}
.memory-item:hover { border-color: var(--border); background: var(--bg-surface); }

.memory-content {
    font-size: 12px;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.memory-meta {
    display: flex; align-items: center; justify-content: space-between;
    font-size: 10px; color: var(--text-muted);
}

.memory-category {
    background: var(--bg-hover);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--purple);
    font-size: 10px;
}

.memory-delete {
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 3px;
    transition: color 0.12s;
}
.memory-delete:hover { color: var(--red); }

/* Skill Item */
.skill-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    margin-bottom: 8px;
    transition: all 0.12s;
}
.skill-item:hover {
    border-color: var(--green-border);
    background: var(--green-glow);
}
.skill-info {
    flex: 1; cursor: pointer; min-width: 0;
}
.skill-name {
    font-size: 13px; font-weight: 500;
    color: var(--green);
    margin-bottom: 4px;
}
.skill-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.skill-delete {
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 3px;
    transition: color 0.12s;
    flex-shrink: 0;
}
.skill-delete:hover { color: var(--red); }

/* Task Item */
.task-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    margin-bottom: 8px;
    transition: all 0.12s;
}
.task-item:hover { border-color: var(--border); background: var(--bg-surface); }

.task-info { flex: 1; }
.task-name { font-size: 12px; color: var(--text); font-weight: 500; margin-bottom: 2px; }
.task-schedule { font-size: 10px; color: var(--text-muted); }

.task-delete {
    background: none; border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    border-radius: 3px;
    transition: color 0.12s;
}
.task-delete:hover { color: var(--red); }

/* ========================================================================
   SIDEBAR OVERLAY (mobile)
   ======================================================================== */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 90;
}
.sidebar-overlay.visible {
    display: block;
}

/* ========================================================================
   RESPONSIVE
   ======================================================================== */
@media (max-width: 768px) {
    .app {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: 0; top: 0;
        width: 280px;
        transform: translateX(-100%);
        box-shadow: 4px 0 30px rgba(0, 0, 0, 0.5);
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-close { display: flex; }
    .hamburger { display: flex; }

    /* Hide the brand icon in topbar on mobile since sidebar has it */
    .topbar-icon { display: none; }

    .chat-scroll { padding: 16px 14px; }
    .input-bar { padding: 10px 14px 12px; }
    .ascii-art { font-size: 7px; }

    .panel { width: 100%; }
}

@media (max-width: 480px) {
    .ascii-art { font-size: 6px; }
    .welcome-hints { gap: 6px; }
    .hint { font-size: 11px; padding: 6px 10px; }
    .topbar-title { display: none; }
    .topbar-sep { display: none; }
}