/* CSS for Floating 3D Assistant Widget */

:root {
    --assistant-bg: rgba(249, 248, 246, 0.85);
    --assistant-border: rgba(42, 59, 50, 0.12);
    --assistant-shadow: 0 12px 40px rgba(42, 59, 50, 0.08);
    --assistant-accent: #4a5d4e;
    --assistant-text-primary: #2a3b32;
    --assistant-text-secondary: #5e6b63;
    --bubble-bg: rgba(236, 230, 220, 0.9);
}

/* Floating Mascot Container */
.tu-assistant-container {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 96px;
    height: 96px;
    z-index: 9999;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.tu-assistant-container.dragging {
    transition: none;
    cursor: grabbing;
}

.tu-assistant-mascot {
    width: 100%;
    height: 100%;
    position: relative;
    border-radius: 50%;
    animation: tu-float 4.5s infinite ease-in-out;
}

.tu-assistant-mascot::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 10%;
    width: 80%;
    height: 10px;
    background: rgba(42, 59, 50, 0.08);
    border-radius: 50%;
    filter: blur(4px);
    z-index: -1;
    animation: tu-shadow-pulse 4.5s infinite ease-in-out;
    pointer-events: none;
}

/* 3D Model Viewer styles */
.tu-assistant-model {
    width: 100%;
    height: 100%;
    outline: none;
    --poster-color: transparent;
}

/* Speech Bubble */
.tu-assistant-speech-bubble {
    position: absolute;
    bottom: 100px;
    right: 10px;
    width: 140px;
    background: var(--bubble-bg);
    border: 1px solid var(--assistant-border);
    border-radius: 18px;
    padding: 12px;
    box-shadow: 0 4px 15px rgba(42, 59, 50, 0.08);
    font-size: 11.5px;
    line-height: 1.35;
    color: var(--assistant-text-primary);
    text-align: center;
    font-weight: 500;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 1;
    transform: translateY(0) scale(1);
    transform-origin: bottom right;
    transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    user-select: none;
}

.tu-assistant-speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 32px;
    border-width: 8px 8px 0;
    border-style: solid;
    border-color: var(--bubble-bg) transparent;
    display: block;
    width: 0;
}

.tu-assistant-speech-bubble::before {
    content: '';
    position: absolute;
    bottom: -9px;
    right: 32px;
    border-width: 8px 8px 0;
    border-style: solid;
    border-color: var(--assistant-border) transparent;
    display: block;
    width: 0;
    z-index: -1;
}

.tu-assistant-speech-bubble.hidden {
    opacity: 0;
    transform: translateY(10px) scale(0.8);
    pointer-events: none;
}

/* Quick Sheet & Full Chat Panel */
.tu-assistant-panel {
    position: fixed;
    right: 24px;
    bottom: 130px;
    width: 380px;
    max-width: calc(100vw - 48px);
    background: var(--assistant-bg);
    border: 1px solid var(--assistant-border);
    border-radius: 24px;
    box-shadow: var(--assistant-shadow);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9998;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(15px) scale(0.95);
    transform-origin: bottom right;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
                height 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.tu-assistant-panel.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Header */
.tu-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 10px;
}

.tu-panel-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--assistant-text-primary);
    letter-spacing: 0.5px;
}

.tu-panel-controls {
    display: flex;
    gap: 4px;
}

.tu-control-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--assistant-text-secondary);
    opacity: 0.7;
    transition: background-color 0.2s, opacity 0.2s, transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.tu-control-btn:hover {
    background: rgba(42, 59, 50, 0.08);
    opacity: 1;
    transform: scale(1.08);
}

.tu-control-btn:active {
    transform: scale(0.92);
}

.tu-control-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* Quick Actions Sheet Mode */
.tu-panel-sheet-content {
    padding: 0 20px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tu-chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.tu-action-chip {
    background: rgba(42, 59, 50, 0.05);
    border: 1px solid rgba(42, 59, 50, 0.15);
    color: var(--assistant-text-primary);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    user-select: none;
    animation: tu-breathe 8s infinite ease-in-out;
}

.tu-action-chip:nth-child(even) {
    animation-delay: 2.5s;
}

.tu-action-chip:hover {
    background: var(--assistant-accent);
    color: #ffffff;
    border-color: var(--assistant-accent);
    transform: scale(1.05) translateY(-1px);
    box-shadow: 0 4px 12px rgba(42, 59, 50, 0.1);
}

.tu-action-chip:active {
    transform: scale(0.95) translateY(0);
    box-shadow: none;
}

/* Input Area */
.tu-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid var(--assistant-border);
    border-radius: 999px;
    padding: 4px 6px 4px 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.tu-input-area:focus-within {
    border-color: rgba(42, 59, 50, 0.4);
    box-shadow: 0 0 0 3px rgba(42, 59, 50, 0.06);
}

.tu-text-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--assistant-text-primary);
    padding: 8px 0;
    font-family: inherit;
}

.tu-text-input::placeholder {
    color: rgba(42, 59, 50, 0.4);
}

.tu-input-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--assistant-text-secondary);
    transition: background-color 0.2s, color 0.2s, transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.tu-input-btn:hover {
    background: rgba(42, 59, 50, 0.06);
    color: var(--assistant-text-primary);
    transform: scale(1.08);
}

.tu-input-btn:active {
    transform: scale(0.92);
}

.tu-input-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.tu-send-btn {
    color: var(--assistant-accent);
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.2s, transform 0.2s, background-color 0.2s;
    pointer-events: none;
}

.tu-send-btn.active {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

/* Voice Button Active pulse */
.tu-voice-btn.listening {
    color: #d32f2f;
    animation: tu-mic-pulse 1.5s infinite ease-in-out;
    background: rgba(211, 47, 47, 0.08);
}

/* Chat Mode Layout */
.tu-panel-chat-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tu-messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 10px 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
}

/* Custom scrollbars inside chat log for seamless Japandi UI */
.tu-messages-container::-webkit-scrollbar {
    width: 6px;
}
.tu-messages-container::-webkit-scrollbar-track {
    background: transparent;
}
.tu-messages-container::-webkit-scrollbar-thumb {
    background: rgba(42, 59, 50, 0.08);
    border-radius: 10px;
}
.tu-messages-container::-webkit-scrollbar-thumb:hover {
    background: rgba(42, 59, 50, 0.15);
}

.tu-message-wrapper {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    animation: tu-ink-soak 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.tu-message-wrapper.user {
    align-self: flex-end;
    align-items: flex-end;
}

.tu-message-wrapper.assistant {
    align-self: flex-start;
    align-items: flex-start;
}

.tu-message {
    width: 100%;
    padding: 12px 16px;
    font-size: 13.5px;
    line-height: 1.5;
    word-break: break-word;
    box-shadow: 0 4px 15px rgba(42, 59, 50, 0.02);
}

.tu-message.user {
    background: var(--assistant-accent);
    color: #ffffff;
    border-radius: 20px 24px 6px 20px;
}

.tu-message.assistant {
    background: rgba(246, 243, 238, 0.85); /* Washi paper glassmorphism */
    color: var(--assistant-text-primary);
    border-radius: 24px 20px 20px 6px;
    border: 1px solid rgba(42, 59, 50, 0.08);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.tu-chat-list {
    margin: 6px 0 6px 20px;
    padding: 0;
}
.tu-chat-list li {
    margin-bottom: 4px;
    list-style-type: disc;
}

.tu-message-text code {
    background: rgba(42, 59, 50, 0.08);
    color: var(--assistant-accent);
    padding: 2px 5px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
}
.tu-message.user .tu-message-text code {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.tu-message-actions {
    display: flex;
    gap: 8px;
    margin-top: 4px;
    padding: 0 4px;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translateY(-2px);
}

.tu-message-wrapper.assistant:hover .tu-message-actions,
.tu-message-wrapper.assistant:focus-within .tu-message-actions {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .tu-message-actions {
        opacity: 0.65;
        transform: translateY(0);
    }
}

.tu-msg-action-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--assistant-text-secondary);
    padding: 4px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.tu-msg-action-btn:hover {
    color: var(--assistant-accent);
    background: rgba(42, 59, 50, 0.05);
    transform: scale(1.1);
}

.tu-msg-action-btn:active {
    transform: scale(0.95);
}

.tu-msg-action-btn svg {
    width: 14px;
    height: 14px;
}

.tu-msg-action-btn.listen-btn.speaking {
    color: var(--assistant-accent);
    animation: tu-dot-pulse 1.2s infinite ease-in-out;
}

.tu-message.loading {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 12px 16px;
    background: rgba(246, 243, 238, 0.85);
    border-radius: 24px 20px 20px 6px;
    border: 1px solid rgba(42, 59, 50, 0.08);
    align-self: flex-start;
}

.tu-loading-dot {
    width: 6px;
    height: 6px;
    background: var(--assistant-text-secondary);
    border-radius: 50%;
    opacity: 0.4;
    animation: tu-dot-pulse 1.2s infinite ease-in-out;
}

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

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

/* Disclaimer Footer in Chat */
.tu-chat-footer {
    padding: 8px 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tu-disclaimer-link {
    font-size: 11px;
    color: var(--assistant-text-secondary);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s;
}

.tu-disclaimer-link:hover {
    color: var(--assistant-accent);
    text-decoration: underline;
}

/* Modal for full disclaimer */
.tu-disclaimer-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(42, 59, 50, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.tu-disclaimer-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.tu-modal-card {
    background: #f9f8f6;
    border: 1px solid var(--assistant-border);
    border-radius: 24px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    box-shadow: 0 20px 50px rgba(42, 59, 50, 0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.tu-disclaimer-modal.open .tu-modal-card {
    transform: scale(1);
}

.tu-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 14px;
    border-bottom: 1px solid rgba(42, 59, 50, 0.08);
}

.tu-modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--assistant-text-primary);
}

.tu-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--assistant-text-primary);
}

.tu-modal-greeting {
    font-weight: 600;
    margin-bottom: 8px;
}

.tu-modal-section {
    margin-bottom: 16px;
}

.tu-modal-section-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--assistant-accent);
}

.tu-modal-section-body {
    color: var(--assistant-text-secondary);
}

.tu-modal-agreement {
    font-size: 12px;
    font-style: italic;
    margin-top: 20px;
    color: var(--assistant-text-secondary);
    padding-top: 12px;
    border-top: 1px solid rgba(42, 59, 50, 0.08);
}

.tu-modal-footer {
    padding: 14px 24px 20px;
    display: flex;
    justify-content: flex-end;
    border-top: 1px solid rgba(42, 59, 50, 0.08);
}

.tu-close-modal-btn {
    background: var(--assistant-accent);
    color: #ffffff;
    border: none;
    padding: 8px 24px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.tu-close-modal-btn:hover {
    background: #3d5246;
}

.tu-close-modal-btn:active {
    transform: scale(0.97);
}

/* Animations */
@keyframes tu-float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@keyframes tu-shadow-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.08;
        filter: blur(4px);
    }
    50% {
        transform: scale(0.8);
        opacity: 0.04;
        filter: blur(6px);
    }
}

@keyframes tu-mic-pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(211, 47, 47, 0.2);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(211, 47, 47, 0);
    }
}

@keyframes tu-dot-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.4);
        opacity: 0.9;
    }
}

@keyframes tu-breathe {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.988);
    }
}

@keyframes tu-ink-soak {
    0% {
        opacity: 0;
        filter: blur(4px);
        transform: scale(0.96) translateY(6px);
    }
    100% {
        opacity: 1;
        filter: blur(0);
        transform: scale(1) translateY(0);
    }
}

/* Mobile specific styling override */
@media (max-width: 600px) {
    .tu-assistant-container {
        right: 16px;
        bottom: 16px;
        width: 80px;
        height: 80px;
    }
    
    .tu-assistant-speech-bubble {
        bottom: 85px;
        right: 0px;
        width: 120px;
        font-size: 10.5px;
        padding: 8px 10px;
    }
    
    .tu-assistant-panel {
        right: 16px;
        bottom: 16px;
        width: calc(100vw - 32px);
        max-width: none;
        border-radius: 20px;
    }
    
    /* When open in full screen on mobile, fill most of viewport */
    .tu-assistant-panel.fullscreen {
        top: 16px;
        bottom: 16px;
        height: calc(100vh - 32px);
    }
}

/* Auth Navigation Elements */
.tu-auth-nav-section {
    display: flex;
    align-items: center;
    margin-right: 16px;
}

.tu-signin-nav-btn {
    background: transparent;
    border: 1px solid rgba(42, 59, 50, 0.3);
    color: var(--assistant-text-primary);
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.tu-signin-nav-btn:hover {
    border-color: var(--assistant-accent);
    background: rgba(42, 59, 50, 0.05);
}

/* User Profile Menu & Dropdown */
.tu-user-profile-menu {
    position: relative;
    display: inline-block;
}

.tu-profile-trigger {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    border-radius: 20px;
    transition: background-color 0.2s;
    color: var(--assistant-text-primary);
    font-family: inherit;
}

.tu-profile-trigger:hover {
    background: rgba(42, 59, 50, 0.06);
}

.tu-nav-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(42, 59, 50, 0.15);
}

.tu-nav-avatar-placeholder {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--assistant-accent);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
}

.tu-profile-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.tu-chevron-down {
    width: 16px;
    height: 16px;
    fill: currentColor;
    opacity: 0.7;
}

.tu-profile-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: #f9f8f6;
    border: 1px solid var(--assistant-border);
    border-radius: 14px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    width: 180px;
    z-index: 10002;
    padding: 6px;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.2s;
}

.tu-profile-dropdown.show {
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
    transform: translateY(0);
}

.tu-dropdown-item {
    display: block;
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--assistant-text-primary);
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.15s;
}

.tu-dropdown-item:hover {
    background: rgba(42, 59, 50, 0.05);
}

.tu-dropdown-item.btn-signout {
    border-top: 1px solid rgba(42, 59, 50, 0.08);
    margin-top: 4px;
    border-radius: 0 0 8px 8px;
    color: #d32f2f;
}

.tu-dropdown-item.btn-signout:hover {
    background: rgba(211, 47, 47, 0.05);
}

/* Login Modal dialog */
.tu-login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(42, 59, 50, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.tu-login-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.tu-login-card {
    background: #f9f8f6;
    border: 1px solid var(--assistant-border);
    border-radius: 28px;
    width: 90%;
    max-width: 380px;
    padding: 32px 24px;
    box-shadow: 0 24px 60px rgba(42, 59, 50, 0.18);
    text-align: center;
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.tu-login-modal.open .tu-login-card {
    transform: scale(1);
}

.tu-login-header {
    margin-bottom: 24px;
}

.tu-login-logo {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    box-shadow: 0 6px 15px rgba(42, 59, 50, 0.12);
    margin-bottom: 16px;
}

.tu-login-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--assistant-text-primary);
    margin-bottom: 8px;
}

.tu-login-subtitle {
    font-size: 13px;
    color: var(--assistant-text-secondary);
    line-height: 1.5;
}

.tu-login-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tu-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    background: #ffffff;
    border: 1px solid rgba(42, 59, 50, 0.15);
    padding: 12px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--assistant-text-primary);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.tu-login-btn:hover {
    background: #fdfdfd;
    border-color: rgba(42, 59, 50, 0.3);
    box-shadow: 0 4px 12px rgba(42, 59, 50, 0.05);
    transform: translateY(-1px);
}

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

.tu-login-btn svg {
    width: 18px;
    height: 18px;
}

.tu-login-flat-btn {
    background: transparent;
    border: none;
    color: var(--assistant-text-secondary);
    font-size: 13px;
    font-weight: 500;
    padding: 8px;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.15s;
    text-decoration: underline;
    margin-top: 4px;
}

.tu-login-flat-btn:hover {
    color: var(--assistant-text-primary);
}

.tu-login-flat-btn.btn-login-cancel {
    text-decoration: none;
    margin-top: 0;
}