:root {
    --bg: #0b0d10;
    --surface: #13161c;
    --surface-hover: #1b1f27;
    --border: #2a2f3a;
    --text: #c5c8d1;
    --text-secondary: #6f7684;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --success: #3fb950;
    --warning: #d29922;
    --danger: #f85149;
    --purple: #a371f7;
    --tool-bg: rgba(63, 185, 80, 0.12);
    --tool-border: rgba(63, 185, 80, 0.4);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    --radius: 10px;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#app {
    width: 100%;
    margin: 0 auto;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    height: 100vh;
    gap: 0.6rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.3rem 0;
    flex-shrink: 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.llama {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.4));
}

.brand h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 0.7rem;
    color: var(--text-secondary);
    display: block;
    margin-top: -0.15rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.5rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.12s ease;
}

.btn:hover:not(:disabled) {
    background: var(--surface-hover);
    border-color: var(--accent);
}

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

.btn-primary {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.18), rgba(88, 166, 255, 0.05));
    border-color: rgba(88, 166, 255, 0.45);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.28), rgba(88, 166, 255, 0.1));
}

.btn-secondary {
    background: var(--surface);
    border-color: var(--border);
}

.btn-send {
    background: var(--success);
    color: #0d1117;
    border-color: var(--success);
    font-weight: 600;
}

.btn-send:hover:not(:disabled) {
    background: #4ac266;
}

.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.75rem; }
.btn-xs { padding: 0.2rem 0.4rem; font-size: 0.7rem; }
.btn-danger { border-color: rgba(248, 81, 73, 0.45); color: var(--danger); }
.btn-danger:hover:not(:disabled) { background: rgba(248, 81, 73, 0.12); }

.header-actions { display: flex; gap: 0.5rem; }

/* Three column layout */
.main-grid {
    display: grid;
    grid-template-columns: 300px 1fr 280px;
    gap: 0.75rem;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

@media (max-width: 1200px) {
    .main-grid { grid-template-columns: 260px 1fr 240px; }
}

@media (max-width: 1000px) {
    .main-grid { grid-template-columns: 1fr; grid-template-rows: auto 1fr auto; overflow: visible; }
    .monitor-panel, .memory-panel { max-height: none; }
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.15);
    border-radius: var(--radius) var(--radius) 0 0;
}

.panel-title { font-weight: 600; font-size: 0.85rem; }

.live-badge {
    font-size: 0.65rem;
    color: var(--success);
    font-weight: 700;
    letter-spacing: 0.05em;
    animation: pulse 1.5s infinite;
}

/* Monitor panel (btop style) */
.monitor-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.monitor-content {
    padding: 0.8rem;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.metric-row {
    display: grid;
    grid-template-columns: 85px 1fr 55px;
    align-items: center;
    gap: 0.5rem;
}

.metric-label { color: var(--text-secondary); }

.metric-value { text-align: right; color: var(--text); }
.metric-value.right { text-align: right; }
.metric-value.ok { color: var(--success); }
.metric-value.warn { color: var(--warning); }

.bar-box {
    height: 8px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 4px;
    transition: width 0.5s ease;
    width: 0%;
}

.bar-fill.ram { background: linear-gradient(90deg, var(--purple), var(--accent)); }
.bar-fill.disk { background: linear-gradient(90deg, var(--warning), var(--danger)); }

.llama-procs {
    color: var(--text-secondary);
    font-size: 0.7rem;
    line-height: 1.4;
}

.mini-log {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem;
    margin-top: 0.3rem;
}

.mini-log-title {
    color: var(--text-secondary);
    font-size: 0.7rem;
    margin-bottom: 0.3rem;
}

.mini-log pre {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    max-height: 120px;
    overflow-y: auto;
}

.chart-title {
    color: var(--text-secondary);
    font-size: 0.65rem;
    margin-top: 0.4rem;
}

canvas {
    width: 100%;
    background: var(--bg);
    border-radius: 6px;
    border: 1px solid var(--border);
}

/* Chat column */
.chat-column {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    min-height: 0;
    overflow: hidden;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.8rem;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.status-left { display: flex; align-items: center; gap: 0.5rem; }

.status-indicator {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--text-secondary);
    transition: background 0.3s;
    position: relative;
}

.status-indicator.running {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
    animation: pulse 2s infinite;
}

.status-indicator.loading {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning);
    animation: pulse 1s infinite;
}

.status-indicator.error {
    background: var(--danger);
    box-shadow: 0 0 8px var(--danger);
}

.status-mode { color: var(--text-secondary); font-size: 0.7rem; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

.loading-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    flex-shrink: 0;
}

.loading-panel.hidden { display: none; }

.loading-header { display: flex; align-items: center; gap: 0.5rem; font-weight: 500; }

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.progress-container {
    width: 100%;
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 0%;
}

.loading-detail { font-size: 0.72rem; color: var(--text-secondary); }

.controls {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.6rem 0.8rem;
    flex-shrink: 0;
}

.control-group { display: flex; align-items: center; gap: 0.4rem; }

.control-group label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 500; }

.control-group select,
.control-group input {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text);
    padding: 0.35rem 0.5rem;
    font-size: 0.8rem;
}

.control-group select { min-width: 200px; }
.control-group input { width: 70px; }

.chat {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow-y: auto;
    padding: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    min-height: 0;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
    gap: 0.6rem;
}

.empty-icon { font-size: 2.5rem; opacity: 0.5; }

.message {
    display: flex;
    flex-direction: column;
    max-width: 88%;
    animation: popIn 0.22s ease-out;
}

.message.user { align-self: flex-end; }
.message.assistant, .message.tool { align-self: flex-start; }

.bubble {
    padding: 0.7rem 0.95rem;
    border-radius: 14px;
    word-break: break-word;
    line-height: 1.5;
}

.message.user .bubble {
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.18), rgba(88, 166, 255, 0.05));
    border: 1px solid rgba(88, 166, 255, 0.25);
    border-bottom-right-radius: 4px;
}

.message.assistant .bubble {
    background: var(--bg);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}

.message.tool .bubble {
    background: rgba(63, 185, 80, 0.08);
    border: 1px solid rgba(63, 185, 80, 0.25);
}

.message .role-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    margin-bottom: 0.15rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tool-call-box, .tool-result-box {
    background: var(--tool-bg);
    border: 1px solid var(--tool-border);
    border-radius: 9px;
    padding: 0.55rem 0.75rem;
    margin: 0.3rem 0;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.tool-call-box .label, .tool-result-box .label {
    color: var(--success);
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tool-call-box pre, .tool-result-box pre {
    margin: 0;
    white-space: pre-wrap;
    color: var(--text);
}

.processing {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.65rem 0.9rem;
    flex-shrink: 0;
}

.processing.hidden { display: none; }

.processing-content {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.processing-dots { display: flex; gap: 4px; }

.processing-dots span {
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.processing-dots span:nth-child(1) { animation-delay: -0.32s; }
.processing-dots span:nth-child(2) { animation-delay: -0.16s; }

.processing-timer {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

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

.input-area {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.input-area textarea {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    padding: 0.7rem 0.9rem;
    font-size: 0.9rem;
    resize: none;
    min-height: 48px;
    max-height: 180px;
}

.input-area textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* Memory panel */
.memory-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.memory-actions {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 0.7rem;
    border-bottom: 1px solid var(--border);
}

.memory-actions input {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text);
    padding: 0.35rem 0.5rem;
    font-size: 0.78rem;
}

.memory-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.memory-empty {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-align: center;
    padding: 1rem 0;
}

.memory-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.55rem 0.65rem;
    font-size: 0.78rem;
}

.memory-meta {
    display: flex;
    gap: 0.4rem;
    align-items: center;
    margin-bottom: 0.25rem;
}

.memory-category {
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
}

.memory-key {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.memory-value {
    color: var(--text);
    word-break: break-word;
    line-height: 1.4;
}

.memory-actions-row {
    display: flex;
    gap: 0.3rem;
    margin-top: 0.35rem;
    justify-content: flex-end;
}

.memory-footer {
    display: flex;
    justify-content: space-between;
    padding: 0.6rem;
    border-top: 1px solid var(--border);
    background: rgba(0,0,0,0.1);
}

/* Utility */
.hidden { display: none !important; }

/* Scrollbars */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3d4450; }