@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

  :root {
    --bg: #0a0a0a;
    --surface: rgba(255,255,255,0.04);
    --surface-hover: rgba(255,255,255,0.08);
    --surface-border: rgba(255,255,255,0.08);
    --glass: rgba(20,20,20,0.7);
    --glass-border: rgba(255,255,255,0.1);
    --text: #f0f0f0;
    --text-secondary: #888;
    --text-muted: #555;
    --green: #76b900;
    --green-light: #93d500;
    --green-glow: rgba(118,185,0,0.3);
    --green-subtle: rgba(118,185,0,0.1);
    --red: #ef4444;
    --amber: #f59e0b;
    --user-bg: rgba(118,185,0,0.08);
    --user-border: rgba(118,185,0,0.2);
    --bot-bg: rgba(255,255,255,0.04);
    --bot-border: rgba(255,255,255,0.1);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
  }

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

  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
  }

  /* ===== AURORA BACKGROUND ===== */
  .aurora {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
  }
  .aurora::before, .aurora::after {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: aurora-drift 12s ease-in-out infinite alternate;
  }
  .aurora::before {
    background: radial-gradient(ellipse at center, var(--green) 0%, transparent 70%);
    top: -60%;
    left: -30%;
    animation-name: aurora-drift-1;
    animation-duration: 14s;
  }
  .aurora::after {
    background: radial-gradient(ellipse at center, #2d6b00 0%, transparent 70%);
    bottom: -50%;
    right: -40%;
    animation-name: aurora-drift-2;
    animation-duration: 18s;
  }
  .aurora-mid {
    position: absolute;
    width: 120%;
    height: 120%;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.08;
    background: radial-gradient(ellipse at center, var(--green-light) 0%, transparent 60%);
    top: 10%;
    left: -10%;
    animation: aurora-drift-3 16s ease-in-out infinite alternate;
  }
  /* Aurora pulse reacts when speaking */
  .aurora::before, .aurora::after { transition: opacity 0.5s ease, filter 0.5s ease; }
  .aurora-mid { transition: opacity 0.5s ease; }
  body.speaking .aurora::before,
  body.speaking .aurora::after {
    opacity: 0.28;
    filter: blur(80px);
    animation-duration: 4s !important;
  }
  body.speaking .aurora-mid {
    opacity: 0.18;
    animation-duration: 3s !important;
  }

  @keyframes aurora-drift-1 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(10%, 15%) scale(1.1); }
  }
  @keyframes aurora-drift-2 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-15%, -10%) scale(1.15); }
  }
  @keyframes aurora-drift-3 {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); }
    100% { transform: translate(8%, -12%) rotate(30deg) scale(1.1); }
  }

  /* ===== LAYOUT ===== */
  .app {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100dvh;
    max-width: 520px;
    width: 100%;
    margin: 0 auto;
    padding: 0 16px;
  }

  /* ===== HEADER ===== */
  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0 8px;
    flex-shrink: 0;
  }
  .header-left {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .logo {
    width: 28px;
    height: 28px;
    fill: var(--green);
  }
  .header-title {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
  }
  .header-title span { color: var(--green); }
  #status {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    transition: all 0.3s;
    white-space: nowrap;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  #status.loading { color: var(--amber); border-color: rgba(245,158,11,0.2); background: rgba(245,158,11,0.06); }
  #status.ready { color: var(--green); border-color: rgba(118,185,0,0.2); background: var(--green-subtle); }
  #status.error { color: var(--red); border-color: rgba(239,68,68,0.2); background: rgba(239,68,68,0.06); }

  /* ===== LOADING PROGRESS ===== */
  .loading-bar {
    flex-shrink: 0;
    display: flex;
    gap: 6px;
    padding: 8px 0;
    justify-content: center;
  }
  .loading-bar.hidden { display: none; }
  .load-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 3px 8px;
    border-radius: 20px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    transition: all 0.4s;
  }
  .load-item.loading {
    color: var(--amber);
    border-color: rgba(245,158,11,0.2);
  }
  .load-item.done {
    color: var(--green);
    border-color: rgba(118,185,0,0.2);
  }
  .load-item .check {
    display: inline-block;
    width: 12px;
    height: 12px;
  }
  .load-item .check svg {
    width: 12px;
    height: 12px;
  }
  .load-item.done .check svg {
    animation: check-pop 0.4s ease;
  }
  @keyframes check-pop {
    0% { transform: scale(0); }
    60% { transform: scale(1.3); }
    100% { transform: scale(1); }
  }
  @keyframes spin {
    to { transform: rotate(360deg); }
  }
  .spinner {
    width: 10px;
    height: 10px;
    border: 1.5px solid rgba(245,158,11,0.3);
    border-top-color: var(--amber);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
  }

  /* ===== CHAT ===== */
  .chat {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    mask-image: linear-gradient(transparent 0%, black 3%, black 97%, transparent 100%);
    -webkit-mask-image: linear-gradient(transparent 0%, black 3%, black 97%, transparent 100%);
  }
  .chat::-webkit-scrollbar { width: 4px; }
  .chat::-webkit-scrollbar-track { background: transparent; }
  .chat::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

  .msg {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    max-width: 88%;
    font-size: 0.88rem;
    line-height: 1.5;
    word-wrap: break-word;
    animation: msg-in 0.35s ease-out;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }
  .msg.user {
    align-self: flex-end;
    background: var(--user-bg);
    border: 1px solid var(--user-border);
  }
  .msg.bot {
    align-self: flex-start;
    background: var(--bot-bg);
    border: 1px solid var(--bot-border);
  }
  .msg .label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 3px;
  }
  .msg.user .label { color: var(--green); }
  .msg.bot .label { color: var(--text-secondary); }
  .lang-badge {
    display: inline-block;
    font-size: 0.55rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 3px;
    margin-left: 6px;
    vertical-align: middle;
  }
  .lang-es { background: rgba(118,185,0,0.2); color: var(--green-light); }
  .lang-en { background: rgba(96,165,250,0.2); color: #60a5fa; }
  @keyframes msg-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .timing {
    text-align: center;
    font-size: 0.68rem;
    color: var(--text-muted);
    padding: 2px;
    animation: msg-in 0.3s ease;
  }
  .timing span { color: var(--green); font-weight: 600; }

  /* Shimmer placeholder while processing */
  .shimmer {
    align-self: flex-start;
    width: 60%;
    height: 42px;
    border-radius: var(--radius-sm);
    background: linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 50%, var(--surface) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
  }
  @keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
  }

  /* ===== MIC AREA ===== */
  .mic-area {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 0 12px;
    gap: 8px;
  }
  .mic-ring {
    position: relative;
    width: 80px;
    height: 80px;
  }
  /* Outer animated rings */
  .mic-ring::before, .mic-ring::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: all 0.4s;
  }
  @keyframes ring-expand {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
  }

  .mic-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2.5px solid var(--green);
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 0 0 var(--green-glow);
  }
  .mic-btn:not(:disabled):hover {
    background: var(--green-subtle);
    box-shadow: 0 0 30px var(--green-glow);
  }
  .mic-btn:disabled {
    border-color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.4;
  }
  .mic-btn svg {
    width: 30px;
    height: 30px;
    fill: var(--green);
    transition: fill 0.3s;
  }
  .mic-btn:disabled svg { fill: var(--text-muted); }

  /* Session controls: stop + mute side by side */
  .session-controls {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: center;
  }
  .session-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 2px solid;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
  }
  .session-btn svg {
    width: 26px;
    height: 26px;
    transition: fill 0.3s;
  }
  .stop-btn {
    border-color: var(--red);
  }
  .stop-btn svg { fill: var(--red); }
  .stop-btn:hover {
    background: rgba(239,68,68,0.15);
    box-shadow: 0 0 25px rgba(239,68,68,0.3);
  }
  .mute-btn {
    border-color: var(--green);
    animation: stream-breathe 3s ease-in-out infinite;
  }
  .mute-btn svg { fill: var(--green); }
  .mute-btn:hover {
    background: var(--green-subtle);
    box-shadow: 0 0 25px var(--green-glow);
  }
  .mute-btn.muted {
    border-color: var(--text-muted);
    opacity: 0.5;
    animation: none;
  }
  .mute-btn.muted svg { fill: var(--text-muted); }

  /* Connection dot */
  .conn-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--text-muted);
    display: inline-block;
    margin-right: 6px;
    transition: background 0.3s;
  }
  .conn-dot.connected { background: var(--green); }
  .conn-dot.disconnected { background: var(--red); }

  @keyframes stream-breathe {
    0%, 100% { box-shadow: 0 0 0 0 var(--green-glow); }
    50% { box-shadow: 0 0 15px var(--green-glow); }
  }

  /* Speaking state: VAD detected voice — ring pulses */
  body.speaking .mic-ring::before {
    border-color: rgba(118,185,0,0.4);
    animation: ring-expand 1.2s ease-out infinite;
  }
  body.speaking .mic-ring::after {
    border-color: rgba(118,185,0,0.2);
    animation: ring-expand 1.2s ease-out 0.4s infinite;
  }

  .mic-hint {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
  }

  /* ===== CHAT INPUT ===== */
  .chat-input-bar {
    flex-shrink: 0;
    display: flex;
    gap: 8px;
    padding: 0 0 10px;
  }
  .chat-input {
    flex: 1;
    padding: 10px 14px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 24px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.2s;
  }
  .chat-input:focus {
    border-color: var(--green);
  }
  .chat-input::placeholder {
    color: var(--text-muted);
  }
  .chat-send {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid var(--green);
    background: transparent;
    color: var(--green);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
  }
  .chat-send:hover:not(:disabled) {
    background: var(--green-subtle);
    box-shadow: 0 0 12px var(--green-glow);
  }
  .chat-send:disabled {
    border-color: var(--text-muted);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.4;
  }
  .chat-send svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
  }

  /* ===== VOICE PANEL (collapsible) ===== */
  .voice-panel {
    flex-shrink: 0;
    padding-bottom: env(safe-area-inset-bottom, 12px);
  }
  .voice-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 8px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.02em;
  }
  .voice-toggle:hover {
    background: var(--surface-hover);
    color: var(--text);
  }
  .voice-toggle .arrow {
    transition: transform 0.3s;
    font-size: 0.6rem;
  }
  .voice-panel.open .voice-toggle .arrow {
    transform: rotate(180deg);
  }
  .voice-panel:not(.open) .voice-toggle {
    border-radius: var(--radius-sm);
  }
  .voice-content {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease, padding 0.35s ease;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--surface-border);
    border-top: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    padding: 0 12px;
  }
  .voice-panel.open .voice-content {
    max-height: 420px;
    padding: 10px 12px 12px;
    overflow-y: auto;
  }

  .filter-row {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 6px;
  }
  .filter-btn {
    padding: 3px 10px;
    border-radius: 20px;
    border: 1px solid var(--surface-border);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.68rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
  }
  .filter-btn:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text-secondary);
  }
  .filter-btn.active {
    border-color: var(--green);
    background: var(--green-subtle);
    color: var(--green);
    font-weight: 600;
  }

  .voice-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: center;
    max-height: 110px;
    overflow-y: auto;
    padding: 4px 0;
  }
  .voice-grid::-webkit-scrollbar { width: 3px; }
  .voice-grid::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

  .voice-chip {
    min-width: 42px;
    height: 26px;
    padding: 0 6px;
    border-radius: 20px;
    border: 1px solid var(--surface-border);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.65rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
  }
  .voice-chip:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text-secondary);
    background: var(--surface);
  }
  .voice-chip.active {
    border-color: var(--green);
    background: var(--green-subtle);
    color: var(--green);
    font-weight: 600;
    box-shadow: 0 0 12px rgba(118,185,0,0.15);
  }
  .voice-chip .flag { font-size: 0.6rem; opacity: 0.7; }
  #voice-grid-en .voice-chip.active {
    border-color: #60a5fa;
    background: rgba(96,165,250,0.1);
    color: #60a5fa;
    box-shadow: 0 0 12px rgba(96,165,250,0.15);
  }

  .voice-custom-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
  }
  .voice-custom-row input {
    width: 52px;
    padding: 4px 6px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: inherit;
    font-size: 0.75rem;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
  }
  .voice-custom-row input:focus {
    border-color: var(--green);
  }
  .test-btn {
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid var(--surface-border);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
  }
  .test-btn:hover:not(:disabled) {
    border-color: var(--green);
    color: var(--green);
    background: var(--green-subtle);
  }
  .test-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
  }

  /* ===== SYSTEM PROMPT ===== */
  .prompt-section {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--surface-border);
  }
  .prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
  }
  .prompt-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
  }
  .prompt-saved {
    font-size: 0.6rem;
    color: var(--green);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .prompt-saved.show {
    opacity: 1;
  }
  .prompt-input {
    width: 100%;
    min-height: 52px;
    max-height: 100px;
    padding: 8px 10px;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: inherit;
    font-size: 0.72rem;
    line-height: 1.4;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
  }
  .prompt-input:focus {
    border-color: var(--green);
  }
  .prompt-input::placeholder {
    color: var(--text-muted);
  }

  /* ===== TEMPERATURE SLIDER ===== */
  .temp-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
  }
  .temp-row .prompt-label { flex-shrink: 0; }
  .temp-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: var(--surface-border);
    border-radius: 2px;
    outline: none;
  }
  .temp-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--green);
    cursor: pointer;
    border: 2px solid var(--bg);
    box-shadow: 0 0 6px var(--green-glow);
  }
  .temp-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--green);
    cursor: pointer;
    border: 2px solid var(--bg);
  }
  .temp-value {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--green);
    min-width: 24px;
    text-align: right;
  }

  /* ===== TOGGLE SWITCH ===== */
  .toggle-switch {
    position: relative;
    display: inline-block;
    width: 32px;
    min-width: 32px;
    max-width: 32px;
    height: 18px;
    flex: 0 0 32px;
  }
  .toggle-switch input { display: none; }
  .toggle-track {
    position: absolute;
    inset: 0;
    background: var(--surface-border);
    border-radius: 9px;
    cursor: pointer;
    transition: background 0.2s;
  }
  .toggle-track::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    left: 2px;
    top: 2px;
    background: #888;
    border-radius: 50%;
    transition: transform 0.2s, background 0.2s;
  }
  .toggle-switch input:checked + .toggle-track {
    background: rgba(118,185,0,0.3);
  }
  .toggle-switch input:checked + .toggle-track::after {
    transform: translateX(14px);
    background: var(--green);
  }

  /* ===== CLEAR BUTTON ===== */
  .header-right {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .clear-btn {
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--surface-border);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.68rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: none;
  }
  .clear-btn:hover {
    border-color: var(--red);
    color: var(--red);
    background: rgba(239,68,68,0.06);
  }
  .clear-btn.show { display: block; }

  /* ===== FOOTER ===== */
  .footer {
    flex-shrink: 0;
    text-align: center;
    padding: 6px 0 10px;
    font-size: 0.6rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
  }
  .footer span { color: var(--green); }
  .footer a { color: var(--text-muted); text-decoration: none; }
  .footer a:hover { color: var(--green); }

  /* ===== EMPTY STATE ===== */
  .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 12px;
    padding: 20px;
  }
  .empty-state svg {
    width: 48px;
    height: 48px;
    fill: var(--text-secondary);
    opacity: 0.5;
  }
  .empty-state p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.5;
  }

  /* Login overlay */
  .login-overlay {
    position: fixed; inset: 0; z-index: 9999;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(20px);
    display: flex; align-items: center; justify-content: center;
  }
  .login-box {
    background: var(--surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    width: 340px;
    text-align: center;
    display: flex; flex-direction: column; gap: 1rem;
  }
  .login-logo { width: 40px; height: 40px; margin: 0 auto; color: var(--green); stroke: currentColor; stroke-width: 1.5; fill: none; }
  .login-title { font-size: 1.3rem; font-weight: 700; color: var(--text); }
  .login-subtitle { font-size: 0.85rem; color: var(--text-secondary); margin-top: -0.5rem; }
  .login-error { font-size: 0.8rem; color: var(--red); background: rgba(239,68,68,0.1); padding: 0.5rem; border-radius: 8px; }
  .login-input {
    background: rgba(255,255,255,0.06); border: 1px solid var(--glass-border);
    border-radius: 10px; padding: 0.75rem 1rem; color: var(--text);
    font-size: 0.95rem; outline: none; font-family: inherit;
    transition: border-color 0.2s;
  }
  .login-input:focus { border-color: var(--green); }
  .login-btn {
    background: var(--green); color: #000; border: none; border-radius: 10px;
    padding: 0.75rem; font-size: 0.95rem; font-weight: 600; cursor: pointer;
    font-family: inherit; transition: background 0.2s;
  }
  .login-btn:hover { background: var(--green-light); }

  /* ===== PLATFORM LAYOUT ===== */
  .platform {
    display: flex;
    height: 100dvh;
    width: 100%;
    position: relative;
    z-index: 1;
  }

  /* Sidebar */
  .sidebar {
    width: 220px;
    flex-shrink: 0;
    background: rgba(10,10,10,0.95);
    border-right: 1px solid var(--surface-border);
    display: flex;
    flex-direction: column;
    padding: 16px 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 10;
    transition: transform 0.3s ease;
  }

  .sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 16px 20px;
    border-bottom: 1px solid var(--surface-border);
    margin-bottom: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
  }
  .sidebar-brand svg { flex-shrink: 0; }

  .sidebar-nav {
    flex: 1;
    overflow-y: auto;
  }

  .sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 16px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    font-family: inherit;
    transition: all 0.15s;
    border: none;
    border-left: 3px solid transparent;
    background: transparent;
    text-align: left;
  }
  .sidebar-item:hover {
    background: var(--surface);
    color: var(--text);
  }
  .sidebar-item.active {
    color: var(--green);
    background: var(--green-subtle);
    border-left-color: var(--green);
  }
  .sidebar-item svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    flex-shrink: 0;
  }

  .sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--surface-border);
    margin-top: auto;
  }
  .sidebar-role {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 10px;
    border-radius: 4px;
    display: inline-block;
  }
  .sidebar-role.role-admin {
    color: var(--green);
    background: var(--green-subtle);
  }
  .sidebar-role.role-tenant {
    color: #60a5fa;
    background: rgba(96,165,250,0.1);
  }
  .sidebar-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 7px 12px;
    border-radius: var(--radius-xs);
    border: 1px solid var(--surface-border);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
  }
  .sidebar-logout:hover {
    border-color: var(--red);
    color: var(--red);
    background: rgba(239,68,68,0.06);
  }
  .sidebar-logout svg { width: 14px; height: 14px; fill: currentColor; }

  /* Main content area */
  .main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    position: relative;
  }

  /* Sections */
  .section {
    display: none;
    flex: 1;
    flex-direction: column;
    height: 100%;
  }
  .section.active {
    display: flex;
  }

  /* Section: Realtime — re-use existing .app styles but adapt to fill main-content */
  .section-realtime .app {
    max-width: 520px;
    width: 100%;
    margin: 0 auto;
    padding: 0 16px;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  /* Admin sections */
  .section-header {
    padding: 24px 28px 12px;
    border-bottom: 1px solid var(--surface-border);
  }
  .section-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 4px;
    color: var(--text);
  }
  .section-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin: 0;
  }
  .section-body {
    flex: 1;
    padding: 24px 28px;
    overflow-y: auto;
  }
  .placeholder-msg {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--text-muted);
    font-size: 0.9rem;
    border: 1px dashed var(--surface-border);
    border-radius: var(--radius);
  }

  /* --- Config table --- */
  .btn-sm {
    padding: 6px 14px;
    border-radius: var(--radius-xs);
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s;
  }
  .btn-green {
    background: var(--green);
    color: #000;
    border-color: var(--green);
  }
  .btn-green:hover { background: var(--green-light); }

  .config-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
  }
  .config-table thead th {
    text-align: left;
    padding: 8px 10px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--surface-border);
  }
  .config-table tbody tr {
    border-bottom: 1px solid var(--surface-border);
  }
  .cfg-key {
    padding: 8px 10px;
    color: var(--green);
    font-weight: 600;
    font-family: monospace;
    white-space: nowrap;
    width: 1%;
  }
  .cfg-val {
    padding: 6px 6px;
    width: 100%;
  }
  .cfg-input,
  .cfg-textarea {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: monospace;
    font-size: 0.8rem;
    padding: 5px 8px;
    transition: border-color 0.15s;
  }
  .cfg-input:focus,
  .cfg-textarea:focus {
    outline: none;
    border-color: var(--green);
  }
  .cfg-textarea {
    min-height: 240px;
    resize: vertical;
    line-height: 1.5;
  }

  .config-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
  }
  .config-status {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .config-status.show { opacity: 1; }
  .config-status.error { color: var(--red); }

  .config-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 0;
    font-size: 0.85rem;
  }

  /* --- Tenants --- */
  .tenant-row { cursor: pointer; }
  .tenant-row:hover { background: rgba(255,255,255,0.02); }
  .tenant-name-cell { color: var(--text) !important; }
  .cfg-actions { white-space: nowrap; width: 1%; padding: 6px 4px; }

  .status-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }
  .status-badge.active { color: var(--green); background: var(--green-subtle); }
  .status-badge.inactive { color: var(--text-muted); background: var(--surface); }

  .btn-danger {
    padding: 6px 14px;
    border-radius: var(--radius-xs);
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid var(--red);
    background: transparent;
    color: var(--red);
    transition: all 0.15s;
  }
  .btn-danger:hover { background: rgba(239,68,68,0.1); }

  .tenant-create-form {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
  }
  .tenant-create-form .tenant-detail-row { margin-bottom: 10px; }

  .tenant-back { margin-bottom: 16px; }
  .tenant-detail-header {
    margin-bottom: 20px;
  }
  .tenant-detail-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 2px;
  }
  .tenant-detail-id {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: monospace;
  }
  .tenant-detail-section {
    margin-bottom: 28px;
  }
  .tenant-detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--surface-border);
  }
  .tenant-detail-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
  }
  .tenant-detail-row label {
    width: 130px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    flex-shrink: 0;
  }
  .tenant-detail-row .cfg-input {
    max-width: 300px;
  }
  .tenant-detail-section .cfg-textarea {
    min-height: 160px;
    margin-bottom: 4px;
  }
  .tenant-detail-row .toggle-switch {
    flex: none;
  }

  /* Key reveal */
  .key-reveal {
    background: var(--surface);
    border: 1px solid var(--green);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 16px;
  }
  .key-reveal-label {
    font-size: 0.78rem;
    color: var(--green);
    font-weight: 600;
    margin-bottom: 8px;
  }
  .key-reveal-value {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--text);
    background: rgba(0,0,0,0.3);
    padding: 8px 12px;
    border-radius: var(--radius-xs);
    margin-bottom: 10px;
    word-break: break-all;
    user-select: all;
  }
  .key-reveal .btn-sm { margin-right: 6px; }

  /* Mobile hamburger */
  .hamburger {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 20;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--surface-border);
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    cursor: pointer;
    align-items: center;
    justify-content: center;
  }
  .hamburger svg { width: 20px; height: 20px; color: var(--text-secondary); }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9;
  }

  /* ===== FUNCTION / MCP CARDS ===== */
  .fn-card-list, .mcp-card-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 8px;
  }
  .fn-card, .mcp-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xs);
    padding: 10px 14px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    transition: border-color 0.15s;
  }
  .fn-card:hover, .mcp-card:hover {
    border-color: rgba(255,255,255,0.15);
  }
  .fn-card-body, .mcp-card-body {
    flex: 1;
    min-width: 0;
  }
  .fn-card-name, .mcp-card-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--green);
    font-family: monospace;
  }
  .fn-card-desc, .mcp-card-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .mcp-card-url {
    font-size: 0.68rem;
    color: var(--text-muted);
    font-family: monospace;
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .mcp-card-tools {
    font-size: 0.68rem;
    color: var(--text-secondary);
    margin-top: 4px;
  }
  .mcp-card-tools span {
    display: inline-block;
    background: var(--green-subtle);
    color: var(--green);
    padding: 1px 6px;
    border-radius: 3px;
    margin-right: 4px;
    margin-bottom: 2px;
    font-family: monospace;
    font-size: 0.65rem;
  }
  .card-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
  }
  .card-actions .btn-sm {
    padding: 4px 10px;
    font-size: 0.7rem;
  }

  /* ===== MODAL DIALOG ===== */
  .modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .modal-box {
    background: var(--bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    width: 480px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .modal-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
  }
  .modal-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-top: 4px;
  }
  .modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
  }
  .btn-outline {
    padding: 6px 14px;
    border-radius: var(--radius-xs);
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid var(--surface-border);
    background: transparent;
    color: var(--text-secondary);
    transition: all 0.15s;
  }
  .btn-outline:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text);
  }

  .mcp-discovered-tools .mcp-tool-item,
  .mcp-card-tool-list .mcp-tool-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 4px 0;
    font-size: 0.78rem;
  }
  .mcp-tool-item .tool-name {
    font-family: monospace;
    color: var(--green);
    font-weight: 600;
    flex-shrink: 0;
  }
  .mcp-tool-item .tool-desc {
    color: var(--text-muted);
    font-size: 0.72rem;
    white-space: pre-wrap;
  }

  /* Expansion in the main tenant page (below chips) */
  .mcp-card-details {
    margin-top: 8px;
    font-size: 0.78rem;
  }
  .mcp-card-details > summary {
    cursor: pointer;
    color: var(--text-muted);
    user-select: none;
    padding: 4px 0;
  }
  .mcp-card-details > summary:hover {
    color: var(--green);
  }
  .mcp-card-details[open] > summary {
    color: var(--green);
  }
  .mcp-card-tool-list {
    padding: 6px 0 2px 8px;
    border-left: 2px solid var(--border, #2a2a2a);
    margin-top: 4px;
  }

  /* Mobile responsive */
  @media (max-width: 768px) {
    .sidebar {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      transform: translateX(-100%);
      z-index: 11;
    }
    .sidebar.open {
      transform: translateX(0);
    }
    .sidebar-overlay.open {
      display: block;
    }
    .hamburger {
      display: flex;
    }
    .section-realtime .app {
      padding-top: 48px;
    }
  }