:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1b23;
    --bg-tertiary: #24252e;
    --text-primary: #e1e1e6;
    --text-secondary: #8b8d97;
    --accent: #6c5ce7;
    --accent-hover: #7c6ff7;
    --green: #00c853;
    --red: #ff5252;
    --orange: #ffab40;
    --border: #2a2b35;
    --msg-user: #1e1f2b;
    --msg-assistant: #1a1b23;
    --radius: 8px;
}

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

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

#app {
    display: flex;
    height: 100vh;
}

/* Sidebar */
#sidebar {
    width: 280px;
    min-width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 0;
}

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

.sidebar-header h1 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
}

.tagline {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
    font-style: italic;
}

#model-list {
    padding: 16px 20px 8px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

#node-status {
    padding: 8px 20px 16px;
}

#model-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

#model-list h3, #node-status h3 {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin: 0;
}

.view-toggle {
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}

.view-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.family-search {
    width: 100%;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: var(--radius);
    font-size: 0.78rem;
    margin-bottom: 8px;
    outline: none;
    font-family: inherit;
}

.family-search:focus {
    border-color: var(--accent);
}

#families-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow-y: auto;
    min-height: 0;
}

#families-container::-webkit-scrollbar {
    width: 4px;
}

#families-container::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.family-item {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.12s;
    font-size: 0.8rem;
    gap: 8px;
}

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

.family-item.active {
    background: var(--accent);
    color: #fff;
}

.family-item .family-name {
    font-weight: 500;
}

.family-item .family-count {
    margin-left: auto;
    font-size: 0.65rem;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 1px 6px;
    border-radius: 8px;
}

.family-item.active .family-count {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.node-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.sidebar-footer {
    margin-top: auto;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

.consent-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.consent-toggle input {
    accent-color: var(--accent);
}

/* Main */
#main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

#chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

#model-info {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 500;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.15s;
}

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

/* Model Table */
#model-table {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0 24px 16px;
    min-height: 0;
}

#model-table.hidden { display: none; }

#model-table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0 12px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
}

#model-table-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

#model-table-search {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    outline: none;
    font-family: inherit;
    width: 260px;
}

#model-table-search:focus { border-color: var(--accent); }

#model-table-wrap {
    flex: 1;
    overflow: auto;
    min-height: 0;
}

#model-table-body {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

#model-table-body thead th {
    text-align: left;
    padding: 6px 10px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    cursor: pointer;
    user-select: none;
}
#model-table-body thead th.sort-asc::after { content: ' ▲'; font-size: 0.6rem; }
#model-table-body thead th.sort-desc::after { content: ' ▼'; font-size: 0.6rem; }

#model-table-body tbody tr {
    cursor: pointer;
    transition: background 0.1s;
}

#model-table-body tbody tr:hover {
    background: var(--bg-tertiary);
}

#model-table-body tbody td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

#model-table-body .col-name { font-weight: 500; }
#model-table-body .col-nodes { width: 65px; text-align: center; color: var(--text-secondary); }
#model-table-body .col-lat { width: 75px; text-align: right; color: var(--green); font-variant-numeric: tabular-nums; }
#model-table-body .col-size { width: 100px; color: var(--text-secondary); font-size: 0.85em; }
#model-table-body .col-ctx { width: 80px; text-align: right; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
#model-table-body .col-freedom { width: 110px; }
#model-table-body .col-family-sm { width: 80px; color: var(--text-secondary); font-size: 0.85em; }

#model-table-body .badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Chat */
#chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

#chat-container > #messages, #chat-container > #model-table {
    padding: 0 24px;
}

#messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#messages.hidden { display: none; }

.welcome {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.welcome h2 {
    color: var(--accent);
    margin-bottom: 12px;
    font-size: 1.8rem;
}

.hint {
    font-size: 0.8rem;
    margin-top: 8px;
    opacity: 0.6;
}

.msg {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    animation: fadeIn 0.2s ease;
}

.msg.user {
    align-self: flex-end;
    background: var(--msg-user);
    border: 1px solid var(--border);
    border-bottom-right-radius: 4px;
}

.msg.assistant {
    align-self: flex-start;
    background: var(--msg-assistant);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}

.msg .msg-meta {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 4px;
    opacity: 0.7;
}

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

/* Typing indicator */
#typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    align-self: flex-start;
    background: var(--bg-tertiary);
    border-radius: 12px;
    border-bottom-left-radius: 4px;
}

#typing-indicator.hidden {
    display: none;
}

.dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: bounce 1.2s infinite;
}

.dot:nth-child(2) { animation-delay: 0.2s; }
.dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.3; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* Input */
#input-area {
    display: flex;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

#message-input {
    flex: 1;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    resize: none;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}

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

#message-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    flex-shrink: 0;
}

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

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

.btn-mic {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    flex-shrink: 0;
}

.btn-mic:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.btn-mic:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.btn-mic.recording {
    color: var(--red);
    border-color: var(--red);
    animation: pulse-mic 1s ease-in-out infinite;
}

@keyframes pulse-mic {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(255, 82, 82, 0); }
}

/* Scrollbar */
#chat-container::-webkit-scrollbar {
    width: 6px;
}

#chat-container::-webkit-scrollbar-track {
    background: transparent;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    #sidebar {
        display: none;
    }
    #chat-header {
        padding: 12px 16px;
    }
    #chat-container {
        padding: 16px;
    }
    #input-area {
        padding: 12px 16px;
    }
    .msg {
        max-width: 90%;
    }
}