:root {
    --bg: #050510;
    --glass-bg: rgba(10, 10, 28, 0.72);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-hover: rgba(255, 255, 255, 0.10);
    --accent: #7c6aef;
    --accent-glow: rgba(124, 106, 239, 0.35);
    --accent-secondary: #4ecdc4;
    --text: rgba(255, 255, 255, 0.93);
    --text-dim: rgba(255, 255, 255, 0.50);
    --text-muted: rgba(255, 255, 255, 0.28);
    --danger: #ff6b6b;
    --success: #51cf66;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --header-h: 64px;
    --input-bar-h: calc(88px + env(safe-area-inset-bottom, 0px));
    --content-gap: 16px;
    --panel-gap: 14px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; overflow-x: hidden; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

button { font-family: var(--font); cursor: pointer; border: none; background: none; color: inherit; }
textarea { font-family: var(--font); color: var(--text); }

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(32px) saturate(1.2);
    -webkit-backdrop-filter: blur(32px) saturate(1.2);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

.app {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

#orb-container {
    position: fixed;
    top: 50%;
    left: 50%;
    translate: -50% -50%;
    width: min(600px, 80vw);
    height: min(600px, 80vw);
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

#orb-container.active,
#orb-container.speaking {
    opacity: 1;
    animation: orbPulse 1.6s ease-in-out infinite;
}

.header {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    height: var(--header-h);
    padding: 0 24px;
    margin-bottom: var(--content-gap);
    border-radius: 0 0 var(--radius) var(--radius);
    border-top: none;
    flex-shrink: 0;
}

.logo {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 3px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.68rem;
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.mode-switch {
    position: relative;
    display: flex;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    padding: 3px;
    gap: 2px;
}

.mode-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: calc(50% - 4px);
    height: calc(100% - 6px);
    background: var(--accent);
    border-radius: 10px;
    transition: transform var(--transition);
    opacity: 0.18;
}

.mode-slider.right {
    transform: translateX(calc(100% + 2px));
}

.mode-switch-single {
    min-width: 0;
}

.mode-switch-single .mode-btn {
    flex: 1;
    min-width: 0;
    justify-content: center;
    padding: 7px 16px;
}

.mode-switch-single .mode-slider {
    width: calc(100% - 6px);
}

.mode-switch-three {
    min-width: 0;
}

.mode-switch-three .mode-btn {
    flex: 1;
    min-width: 0;
    justify-content: center;
    padding: 7px 10px;
}

.mode-switch-three .mode-slider {
    width: calc(33.333% - 4px);
}

.mode-switch-three .mode-slider.center {
    transform: translateX(calc(100% + 2px));
}

.mode-switch-three .mode-slider.right {
    transform: translateX(calc(200% + 4px));
}

.mode-btn {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    font-size: 0.76rem;
    font-weight: 500;
    border-radius: 10px;
    color: var(--text-dim);
    transition: color var(--transition);
    white-space: nowrap;
}

.mode-btn.active { color: var(--text); }
.mode-btn svg {
    opacity: 0.7;
    width: 16px;
    height: 16px;
    min-width: 16px;
    min-height: 16px;
    flex-shrink: 0;
}

.mode-btn.active svg { opacity: 1; }
.header-left { display: flex; align-items: baseline; gap: 10px; flex-shrink: 0; min-width: 0; }
.header-center { flex: 1; min-width: 0; display: flex; justify-content: center; align-items: center; }
.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    flex-wrap: nowrap;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-dim);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
    animation: pulse-dot 2s ease-in-out infinite;
}

.status-dot.offline {
    background: var(--danger);
    box-shadow: 0 0 6px var(--danger);
    animation: none;
}

.btn-icon {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    min-width: 34px;
    min-height: 34px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    transition: background var(--transition), border-color var(--transition);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-icon:hover {
    background: var(--glass-hover);
    border-color: rgba(255, 255, 255, 0.14);
}

.chat-area {
    position: relative;
    z-index: 5;
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex: 1;
    gap: 16px;
    padding: 48px 24px;
    animation: fadeIn 0.6s ease;
}

.welcome-icon {
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 6px;
}

.welcome-title {
    font-size: 1.7rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--text), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-sub {
    font-size: 0.9rem;
    color: var(--text-dim);
    font-weight: 300;
}

.welcome-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}

.chip {
    padding: 10px 20px;
    font-size: 0.76rem;
    font-weight: 400;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    transition: all var(--transition);
}

.chip:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 106, 239, 0.25);
}

.message {
    display: flex;
    gap: 12px;
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
    animation: msgIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.message.user { flex-direction: row-reverse; }
.msg-avatar {
    width: 30px;
    height: 30px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    font-size: 0.7rem;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 4px;
}

.msg-avatar .msg-avatar-icon {
    width: 18px;
    height: 18px;
}

.message.assistant .msg-avatar {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
}

.message.user .msg-avatar {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-dim);
}

.msg-body {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.msg-content {
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 0.87rem;
    line-height: 1.65;
    font-weight: 400;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.message.assistant .msg-content {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-top-left-radius: var(--radius-xs);
}

.message.user .msg-content {
    background: rgba(124, 106, 239, 0.13);
    border: 1px solid rgba(124, 106, 239, 0.16);
    border-top-right-radius: var(--radius-xs);
}

.msg-label {
    font-size: 0.66rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 0 4px;
}
.message.user .msg-label { text-align: right; }

.stream-cursor {
    animation: blink 0.8s step-end infinite;
    color: var(--accent);
    margin-left: 1px;
}

.msg-actions-images {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.msg-action-image {
    max-width: 100%;
    max-height: 320px;
    border-radius: var(--radius);
    object-fit: contain;
}

.msg-actions-contents {
    margin-top: 12px;
}

.msg-action-content {
    padding: 10px 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
    font-size: 0.85rem;
    line-height: 1.6;
    white-space: pre-wrap;
    margin-bottom: 8px;
}
.msg-action-content:last-child { margin-bottom: 0; }

.bg-task-card {
    margin-top: 12px;
    padding: 14px 18px;
    background: rgba(124, 106, 239, 0.06);
    border: 1px solid rgba(124, 106, 239, 0.12);
    border-radius: var(--radius);
    transition: all 0.3s ease;
}

.bg-task-card.bg-task-done {
    background: rgba(78, 205, 196, 0.06);
    border-color: rgba(78, 205, 196, 0.15);
}

.bg-task-card.bg-task-failed {
    background: rgba(255, 107, 107, 0.06);
    border-color: rgba(255, 107, 107, 0.12);
}

.bg-task-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bg-task-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(124, 106, 239, 0.15);
    border-top: 2px solid var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }
.bg-task-done-icon {
    width: 16px; height: 16px; flex-shrink: 0;
    background: var(--success);
    border-radius: 50%;
    position: relative;
}

.bg-task-done-icon::after {
    content: '';
    position: absolute;
    top: 3px; left: 5px;
    width: 5px; height: 8px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.bg-task-fail-icon {
    width: 16px; height: 16px; flex-shrink: 0;
    background: var(--danger);
    border-radius: 50%;
    position: relative;
}

.bg-task-fail-icon::after {
    content: '!';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
}

.bg-task-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
}

.bg-task-status {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-left: auto;
}

.bg-task-prompt {
    font-size: 0.78rem;
    color: var(--text-dim);
    margin-top: 6px;
    opacity: 0.7;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bg-task-view-btn {
    margin-top: 10px;
    padding: 8px 20px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.bg-task-view-btn:hover { background: #6b5ce7; }
.cam-btn.cam-active {
    color: var(--accent);
    background: rgba(124, 106, 239, 0.18);
    border-color: rgba(124, 106, 239, 0.3);
}

.cam-panel {
    --cam-w: 420px;
    --cam-h: 315px;
    position: fixed;
    bottom: calc(var(--input-bar-h) + var(--panel-gap) + 16px);
    right: 24px;
    width: var(--cam-w);
    height: var(--cam-h);
    min-width: 200px;
    min-height: 150px;
    max-width: 90vw;
    max-height: 70vh;
    z-index: 100;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(124, 106, 239, 0.25);
    background: rgba(10, 10, 28, 0.88);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: scale(0.9) translateY(12px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, width 0.25s ease, height 0.25s ease;
}

.cam-panel.visible {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
}

.cam-panel.minimized {
    width: 72px !important;
    height: 72px !important;
    min-width: 72px;
    min-height: 72px;
    border-radius: 50%;
}

.cam-panel.minimized .cam-panel-header,
.cam-panel.minimized .cam-panel-overlay,
.cam-panel.minimized .cam-panel-resize { display: none; }

.cam-panel.minimized .cam-panel-body {
    border-radius: 50%;
    cursor: pointer;
}

.cam-panel.minimized .cam-panel-body video { border-radius: 50%; }

.cam-panel {
    display: flex;
    flex-direction: column;
}

.cam-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: rgba(0, 0, 0, 0.35);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    cursor: move;
    user-select: none;
    flex-shrink: 0;
    border-radius: 20px 20px 0 0;
}

.cam-panel-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
}

.cam-panel-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
    animation: pulse-dot 1.5s ease-in-out infinite;
}

.cam-panel-controls {
    display: flex;
    align-items: center;
    gap: 4px;
}

.cam-panel-vision-mode {
    display: flex;
    align-items: center;
    cursor: pointer;
    margin-right: 8px;
}

.cam-panel-vision-mode input { display: none; }
.cam-panel-vision-label {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--text-dim);
    padding: 4px 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    transition: all var(--transition);
}

.cam-panel-vision-mode input:checked + .cam-panel-vision-label {
    color: var(--accent);
    background: rgba(124, 106, 239, 0.2);
}

.cam-panel-btn {
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-dim);
    border-radius: 10px;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition);
}

.cam-panel-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text);
}

.cam-panel-btn.cam-close:hover { background: rgba(255, 107, 107, 0.25); color: var(--danger); }

.cam-panel-body {
    position: relative;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.cam-panel #cam-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.cam-panel-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 8px 12px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.85);
}

.cam-panel-resize {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 24px;
    height: 24px;
    cursor: nwse-resize;
    background: linear-gradient(135deg, transparent 45%, rgba(255,255,255,0.2) 45%, rgba(255,255,255,0.2) 55%, transparent 55%);
    border-bottom-right-radius: inherit;
}

.cam-panel-resize:hover { background: linear-gradient(135deg, transparent 45%, rgba(124,106,239,0.4) 45%, rgba(124,106,239,0.4) 55%, transparent 55%); }
.cam-panel.minimized .cam-panel-resize { pointer-events: none; }

@media (max-width: 768px) {
    .cam-panel { --cam-w: 280px; --cam-h: 210px; right: 16px; bottom: calc(var(--input-bar-h) + var(--panel-gap) + 12px); }
}

@media (max-width: 480px) {
    .cam-panel { --cam-w: 240px; --cam-h: 180px; right: 12px; bottom: calc(var(--input-bar-h) + var(--panel-gap) + 8px); }
}

.input-bar {
    position: relative;
    z-index: 10;
    padding: 14px 24px 14px;
    padding-bottom: max(14px, env(safe-area-inset-bottom, 14px));
    margin-top: var(--content-gap);
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom: none;
    flex-shrink: 0;
    box-shadow: none;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 8px 8px 8px 18px;
    transition: border-color var(--transition);
    box-shadow: none;
}

.input-wrapper:focus-within {
    border-color: rgba(255, 255, 255, 0.14);
}

.input-wrapper textarea {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    resize: none;
    font-size: 0.87rem;
    line-height: 1.5;
    padding: 8px 0;
    max-height: 120px;
    color: var(--text);
}
.input-wrapper textarea::placeholder { color: var(--text-muted); }
.input-wrapper textarea:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.input-actions {
    display: flex;
    gap: 6px;
    padding-bottom: 2px;
    flex-shrink: 0;
}

.action-btn {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    min-width: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition);
    color: var(--text-dim);
    flex-shrink: 0;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.16);
    color: var(--text);
    transform: translateY(-1px);
}

.action-btn:active {
    transform: translateY(0);
}

.send-btn {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(124, 106, 239, 0.25);
}

.send-btn:hover {
    background: #6a58e0 !important;
    border-color: #6a58e0 !important;
    box-shadow: 0 4px 14px rgba(124, 106, 239, 0.35);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: default;
    box-shadow: none;
    transform: none;
    animation: sendBtnPulse 1.2s ease-in-out infinite;
}

@keyframes sendBtnPulse {
    0%, 100% { opacity: 0.5; }
    50%      { opacity: 0.7; }
}

.mic-btn .mic-icon-active { display: none; }
.mic-btn.listening .mic-icon { display: none; }
.mic-btn.listening .mic-icon-active { display: block; }

.mic-btn.listening {
    background: rgba(255, 107, 107, 0.18);
    border-color: rgba(255, 107, 107, 0.3);
    color: var(--danger);
    animation: micPulse 1.5s ease-in-out infinite;
}

.mic-btn.auto-listen:not(.listening) {
    border-color: rgba(78, 205, 196, 0.4);
    box-shadow: 0 0 0 1px rgba(78, 205, 196, 0.2);
}

.tts-btn .tts-icon-on { display: none; }
.tts-btn.tts-active .tts-icon-off { display: none; }
.tts-btn.tts-active .tts-icon-on { display: block; }

.tts-btn.tts-active {
    background: rgba(124, 106, 239, 0.18);
    border-color: rgba(124, 106, 239, 0.3);
    color: var(--accent);
}

.tts-btn.tts-speaking {
    animation: ttsPulse 1.5s ease-in-out infinite;
}

.input-meta {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 6px 12px 0;
    min-height: 0;
    font-size: 0.66rem;
    color: var(--text-muted);
}

.panel-overlay {
    position: fixed;
    inset: 0;
    z-index: 19;
    background: transparent;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
}

.panel-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: none;
}

.speech-widget {
    position: fixed;
    bottom: calc(var(--input-bar-h) + var(--panel-gap));
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    z-index: 15;
    min-width: min(320px, 90vw);
    max-width: min(560px, 95vw);
    padding: 14px 20px;
    border-radius: 16px;
    background: rgba(10, 10, 28, 0.65);
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(124, 106, 239, 0.08);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.speech-widget.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    animation: speechWidgetIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes speechWidgetIn {
    from { opacity: 0; transform: translateX(-50%) translateY(12px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.speech-widget-inner {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.speech-widget-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.speech-widget-label::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--danger);
    animation: pulse-dot 1.2s ease-in-out infinite;
}

.speech-widget-text {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text);
    min-height: 1.5em;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.speech-widget-text:empty::before {
    content: 'Speak now...';
    color: var(--text-muted);
    font-style: italic;
}

.toast-container {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    padding: 12px 20px;
    background: rgba(20, 20, 35, 0.95);
    border: 1px solid rgba(255, 107, 107, 0.4);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    max-width: min(400px, 90vw);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: auto;
    cursor: pointer;
}

.toast.toast-visible {
    opacity: 1;
    transform: translateY(0);
}

.activity-panel {
    position: fixed;
    top: calc(var(--header-h) + var(--panel-gap));
    left: 0;
    bottom: calc(var(--input-bar-h) + var(--panel-gap));
    width: min(340px, 90vw);
    min-width: 0;
    height: auto;
    z-index: 6;
    display: flex;
    flex-direction: column;
    border-radius: 0 var(--radius) var(--radius) 0;
    box-shadow: 8px 0 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.04);
    overflow: hidden;
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.activity-panel.open {
    transform: translateX(0);
}

.activity-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.activity-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.activity-title::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px rgba(124, 106, 239, 0.5);
}

.activity-close {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    cursor: pointer;
    transition: all var(--transition);
}

.activity-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text);
}

.activity-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.activity-list::-webkit-scrollbar { display: none; }
.activity-empty {
    padding: 24px 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

.activity-item {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    font-size: 0.78rem;
    line-height: 1.55;
    animation: activityIn 0.25s ease-out;
}

.activity-item .activity-event {
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.activity-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: 6px;
    background: rgba(124, 106, 239, 0.2);
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
}

.activity-item .activity-detail {
    color: var(--text-dim);
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: pre-wrap;
    max-height: 300px;
    overflow-y: auto;
}

.activity-item.route-general .activity-event,
.activity-item.route-general .activity-step { color: #7dd3fc; }
.activity-item.route-general .activity-step { background: rgba(125, 211, 252, 0.15); }
.activity-item.route-realtime .activity-event,
.activity-item.route-realtime .activity-step { color: var(--success); }
.activity-item.route-realtime .activity-step { background: rgba(81, 207, 102, 0.15); }
.activity-item.route-vision .activity-event,
.activity-item.route-vision .activity-step { color: #f59e0b; }
.activity-item.route-vision .activity-step { background: rgba(245, 158, 11, 0.15); }
.activity-item.route-task .activity-event,
.activity-item.route-task .activity-step { color: var(--accent-secondary); }
.activity-item.route-task .activity-step { background: rgba(78, 205, 196, 0.15); }
.activity-item.route-chat .activity-event,
.activity-item.route-chat .activity-step { color: var(--accent); }
.activity-item.route-chat .activity-step { background: rgba(124, 106, 239, 0.2); }

.activity-item.activity-sub {
    padding: 12px 14px;
    font-size: 0.75rem;
    border-left: 3px solid rgba(124, 106, 239, 0.4);
}

.activity-item.activity-sub .activity-event { font-size: 0.76rem; }

@keyframes activityIn {
    from { opacity: 0; transform: translateX(-8px); }
    to   { opacity: 1; transform: translateX(0); }
}

.search-results-widget {
    position: fixed;
    top: calc(var(--header-h) + var(--panel-gap));
    right: 0;
    bottom: calc(var(--input-bar-h) + var(--panel-gap));
    width: min(380px, 95vw);
    min-width: 0;
    height: auto;
    z-index: 6;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius) 0 0 var(--radius);
    border-right: none;
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.04);
    overflow: hidden;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-results-widget.open {
    transform: translateX(0);
}

.search-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.search-results-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.search-results-title::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
    animation: pulse-dot 2s ease-in-out infinite;
    flex-shrink: 0;
}

.search-results-close {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
}

.search-results-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text);
}

.search-results-query {
    padding: 12px 20px 14px;
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    flex-shrink: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
}

.search-results-answer {
    padding: 16px 20px 18px;
    font-size: 0.85rem;
    line-height: 1.55;
    color: var(--text);
    background: rgba(124, 106, 239, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    flex-shrink: 0;
    max-height: 200px;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.search-results-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    scroll-behavior: smooth;
}

.search-result-card {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    transition: background var(--transition), border-color var(--transition);
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.search-result-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.1);
}

.search-result-card .card-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.35;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
}

.search-result-card .card-content {
    font-size: 0.76rem;
    color: var(--text-dim);
    line-height: 1.5;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-result-card .card-url {
    font-size: 0.7rem;
    color: var(--accent);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
}

.search-result-card .card-url:hover {
    text-decoration: underline;
}

.search-result-card .card-score {
    font-size: 0.68rem;
    color: var(--text-muted);
}

.search-results-answer::-webkit-scrollbar,
.search-results-list::-webkit-scrollbar {
    width: 6px;
}

.search-results-answer::-webkit-scrollbar-track,
.search-results-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
}

.search-results-answer::-webkit-scrollbar-thumb,
.search-results-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 10px;
}

.search-results-answer::-webkit-scrollbar-thumb:hover,
.search-results-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

@supports (scrollbar-color: rgba(255,255,255,0.12) rgba(255,255,255,0.03)) {
    .search-results-answer,
    .search-results-list {
        scrollbar-color: rgba(255, 255, 255, 0.12) rgba(255, 255, 255, 0.03);
        scrollbar-width: thin;
    }
}

.settings-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    width: min(360px, 92vw);
    z-index: 21;
    border-radius: var(--radius);
    padding: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
}

.settings-panel.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--glass-border);
}

.settings-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.settings-body {
    padding: 24px 20px 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.settings-label {
    font-size: 0.88rem;
    color: var(--text);
    cursor: pointer;
    flex: 1;
}

.settings-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 4px;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    transition: background var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: transform var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.14); }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes msgIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes dotBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30%           { transform: translateY(-5px); opacity: 1; }
}
@keyframes blink {
    50% { opacity: 0; }
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.4; }
}
@keyframes micPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.3); }
    50%      { box-shadow: 0 0 0 8px rgba(255, 107, 107, 0); }
}
@keyframes ttsPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(124, 106, 239, 0.3); }
    50%      { box-shadow: 0 0 0 8px rgba(124, 106, 239, 0); }
}
@keyframes orbPulse {
    0%, 100% { transform: scale(1); opacity: 0.92; }
    50%      { transform: scale(1.10); opacity: 1; }
}

@media (max-width: 768px) {
    :root { --input-bar-h: calc(100px + env(safe-area-inset-bottom, 0px)); --content-gap: 12px; --panel-gap: 12px; }
    .header { padding: 0 16px; gap: 12px; margin-bottom: var(--content-gap); }
    .header-right { gap: 8px; }
    .btn-icon { width: 38px; height: 38px; min-width: 38px; min-height: 38px; }
    .tagline { display: none; }
    .logo { font-size: 1rem; }
    .mode-btn { padding: 6px 10px; font-size: 0.72rem; }
    .mode-btn .mode-btn-text { display: none; }
    .status-badge .status-text { display: none; }
    .chat-messages { padding: 18px 16px 22px; gap: 12px; }
    .input-bar { padding: 12px 16px 12px; padding-bottom: max(12px, env(safe-area-inset-bottom, 12px)); margin-top: var(--content-gap); }
    .input-wrapper { padding: 4px 4px 4px 12px; }
    .action-btn { width: 36px; height: 36px; min-width: 36px; border-radius: 9px; }
    .msg-content { font-size: 0.84rem; padding: 10px 13px; }
    .welcome-title { font-size: 1.3rem; }
    .message { gap: 8px; }
    .msg-avatar { width: 26px; height: 26px; font-size: 0.62rem; }
    .msg-avatar .msg-avatar-icon { width: 16px; height: 16px; }
    .search-results-widget { width: min(100vw, 360px); }
    .search-results-header { padding: 14px 16px; }
    .search-results-query,
    .search-results-answer { padding: 12px 16px; }
    .search-results-list { padding: 12px 16px 20px; gap: 12px; }
    .search-result-card { padding: 12px 14px; }
    .activity-panel { width: min(100vw, 320px); }
    .activity-header { padding: 14px 16px; }
    .activity-list { padding: 12px 16px 20px; gap: 12px; }
    .speech-widget { bottom: calc(var(--input-bar-h) + var(--panel-gap)); min-width: min(280px, 88vw); padding: 12px 16px; }
    .speech-widget-text { font-size: 0.85rem; }
}

@media (max-width: 480px) {
    :root { --input-bar-h: calc(95px + env(safe-area-inset-bottom, 0px)); --content-gap: 10px; --panel-gap: 10px; }
    .header { padding: 0 12px; margin-bottom: var(--content-gap); gap: 8px; }
    .header-left { flex-shrink: 0; }
    .header-center { flex: 1; justify-content: center; display: flex; min-width: 0; }
    .header-right { gap: 6px; }
    .btn-icon { width: 36px; height: 36px; min-width: 36px; min-height: 36px; }
    .logo { font-size: 0.9rem; letter-spacing: 2px; }
    .mode-switch { width: 100%; }
    .mode-btn { flex: 1; justify-content: center; }
    .new-chat-btn { display: none; }
    .chat-messages { padding: 14px 12px 18px; gap: 10px; }
    .message { max-width: 95%; }
    .msg-content { max-width: 100%; }
    .input-bar { padding: 10px 12px 10px; padding-bottom: max(10px, env(safe-area-inset-bottom, 10px)); margin-top: var(--content-gap); }
    .welcome-chips { gap: 8px; }
    .chip { font-size: 0.72rem; padding: 8px 16px; }
    .action-btn { width: 34px; height: 34px; min-width: 34px; border-radius: 8px; }
    .action-btn svg { width: 17px; height: 17px; }
    .input-actions { gap: 5px; }
    .input-wrapper { gap: 4px; }
    .search-results-widget { width: 100vw; max-width: 100%; }
    .search-results-header { padding: 12px 14px; }
    .search-results-query { font-size: 0.72rem; padding: 10px 14px 12px; }
    .search-results-answer { font-size: 0.82rem; padding: 12px 14px; max-height: 160px; }
    .search-results-list { padding: 12px 14px 18px; gap: 10px; }
    .search-result-card { padding: 12px 14px; }
    .search-result-card .card-title { font-size: 0.76rem; }
    .search-result-card .card-content { font-size: 0.72rem; -webkit-line-clamp: 3; }
    .activity-panel { width: 100vw; }
    .activity-header { padding: 12px 14px; }
    .activity-list { padding: 12px 14px 18px; gap: 10px; }
    .mode-switch-three .mode-btn { padding: 8px 10px; font-size: 0.68rem; }
    .mode-switch-three .mode-btn .mode-btn-text { display: none; }
    .speech-widget { bottom: calc(var(--input-bar-h) + var(--panel-gap)); min-width: min(260px, 92vw); padding: 10px 14px; }
    .speech-widget-label { font-size: 0.65rem; }
    .speech-widget-text { font-size: 0.82rem; }
}

/* ===== USER MENU ===== */
.user-menu {
    position: relative;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: rgba(10, 10, 28, 0.95);
    backdrop-filter: blur(32px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    padding: 8px 0;
    z-index: 100;
    animation: fadeIn 0.2s ease;
}

.user-dropdown-info {
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.8rem;
    color: var(--text-dim);
}

.user-dropdown-info strong {
    display: block;
    color: var(--text);
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.user-dropdown-item {
    display: block;
    width: 100%;
    padding: 10px 16px;
    font-size: 0.8rem;
    color: var(--text-dim);
    text-align: left;
    transition: all var(--transition);
    font-family: var(--font);
    cursor: pointer;
    border: none;
    background: none;
}

.user-dropdown-item:hover {
    background: var(--glass-hover);
    color: var(--text);
}

.user-dropdown-logout {
    color: var(--danger);
}

.user-dropdown-logout:hover {
    background: rgba(255, 107, 107, 0.1);
    color: var(--danger);
}

.learning-data-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.learning-data-card {
    background: rgba(10, 10, 28, 0.95);
    backdrop-filter: blur(32px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
}

.learning-data-card h3 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.learning-data-field {
    margin-bottom: 16px;
}

.learning-data-field label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-dim);
    margin-bottom: 6px;
    font-weight: 500;
}

.learning-data-field textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.85rem;
    resize: vertical;
    font-family: var(--font);
}

.learning-data-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.learning-data-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 16px;
}

.learning-data-actions button {
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    border: none;
}

.learning-data-actions .btn-save {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
}

.learning-data-actions .btn-cancel {
    background: rgba(255,255,255,0.06);
    color: var(--text-dim);
}