/* ==========================================================================
   Polaris Chat Widget - Assistente IA
   SMN Design System - Glassmorphism
   Sprint AI-03
   ========================================================================== */

/* --------------------------------------------------------------------------
   Chat Widget Container
   -------------------------------------------------------------------------- */
.polaris-chat-widget {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9999;
    font-family: var(--font-family);
}

/* --------------------------------------------------------------------------
   FAB (Floating Action Button)
   -------------------------------------------------------------------------- */
.polaris-chat-fab {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-600) 100%);
    border: none;
    color: var(--neutral-50);
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(46, 48, 79, 0.4);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.polaris-chat-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(46, 48, 79, 0.5);
}

.polaris-chat-fab:active {
    transform: scale(var(--click-scale));
}

.polaris-chat-fab .fa-xmark {
    display: none;
}

.polaris-chat-widget.open .polaris-chat-fab .fa-robot {
    display: none;
}

.polaris-chat-widget.open .polaris-chat-fab .fa-xmark {
    display: inline-flex;
}

/* --------------------------------------------------------------------------
   Chat Panel (Glassmorphism)
   -------------------------------------------------------------------------- */
.polaris-chat-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    height: 500px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid var(--border-soft);
    box-shadow: var(--panel-shadow), 0 0 40px rgba(46, 48, 79, 0.1);
    display: none;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.polaris-chat-widget.open .polaris-chat-panel {
    display: flex;
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* --------------------------------------------------------------------------
   Chat Header
   -------------------------------------------------------------------------- */
.polaris-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-600) 100%);
    color: var(--neutral-50);
}

.polaris-chat-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-base);
}

.polaris-chat-close {
    background: transparent;
    border: none;
    color: var(--neutral-50);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.polaris-chat-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------------------------------------
   Header Actions
   -------------------------------------------------------------------------- */
.polaris-chat-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.polaris-chat-header-btn {
    background: transparent;
    border: none;
    color: var(--neutral-50);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: background var(--transition-fast);
    opacity: 0.8;
}

.polaris-chat-header-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    opacity: 1;
}

/* --------------------------------------------------------------------------
   Sessions Dropdown
   -------------------------------------------------------------------------- */
.polaris-chat-sessions-dropdown {
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    background: var(--neutral-50);
    border-bottom: 1px solid var(--border-soft);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
    max-height: 250px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.polaris-chat-sessions-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--neutral-100);
    border-bottom: 1px solid var(--border-soft);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-color);
}

.polaris-chat-sessions-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 2px;
    border-radius: 4px;
    color: var(--text-light);
}

.polaris-chat-sessions-close:hover {
    background: var(--neutral-200);
}

.polaris-chat-sessions-list {
    overflow-y: auto;
    flex: 1;
}

.polaris-chat-sessions-empty {
    padding: var(--spacing-lg);
    text-align: center;
    font-size: var(--font-size-sm);
}

.polaris-chat-session-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-soft);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.polaris-chat-session-item:hover {
    background: var(--neutral-100);
}

.polaris-chat-session-item.active {
    background: rgba(64, 223, 128, 0.1);
    border-left: 3px solid var(--accent-color);
}

.polaris-chat-session-item-content {
    flex: 1;
    min-width: 0;
}

.polaris-chat-session-item-title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.polaris-chat-session-item-date {
    font-size: var(--font-size-xs);
    color: var(--text-light);
}

/* --------------------------------------------------------------------------
   Chat Messages Area
   -------------------------------------------------------------------------- */
.polaris-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background: var(--neutral-100);
}

.polaris-chat-messages::-webkit-scrollbar {
    width: 6px;
}

.polaris-chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.polaris-chat-messages::-webkit-scrollbar-thumb {
    background: var(--neutral-200);
    border-radius: 3px;
}

/* --------------------------------------------------------------------------
   Chat Message Bubbles
   -------------------------------------------------------------------------- */
.polaris-chat-message {
    max-width: 85%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    word-wrap: break-word;
}

.polaris-chat-message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-600) 100%);
    color: var(--neutral-50);
    border-bottom-right-radius: 4px;
}

.polaris-chat-message.assistant {
    align-self: flex-start;
    background: var(--neutral-50);
    color: var(--text-color);
    border: 1px solid var(--border-soft);
    border-bottom-left-radius: 4px;
}

.polaris-chat-message.error {
    background: #fee2e2;
    color: var(--error-text);
    border-color: #fecaca;
}

/* Markdown básico nas mensagens */
.polaris-chat-message code {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9em;
}

.polaris-chat-message strong {
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   Typing Indicator
   -------------------------------------------------------------------------- */
.polaris-chat-typing {
    display: flex;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
}

.polaris-chat-typing .dot {
    width: 8px;
    height: 8px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: typing-bounce 1.4s infinite ease-in-out both;
}

.polaris-chat-typing .dot:nth-child(1) { animation-delay: -0.32s; }
.polaris-chat-typing .dot:nth-child(2) { animation-delay: -0.16s; }
.polaris-chat-typing .dot:nth-child(3) { animation-delay: 0s; }

@keyframes typing-bounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* --------------------------------------------------------------------------
   Chat Input Area
   -------------------------------------------------------------------------- */
.polaris-chat-input-area {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--neutral-50);
    border-top: 1px solid var(--border-soft);
}

.polaris-chat-input {
    flex: 1;
    resize: none;
    border: 1px solid var(--neutral-200);
    border-radius: 12px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    max-height: 100px;
    min-height: 40px;
    line-height: 1.4;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.polaris-chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 48, 79, 0.1);
}

.polaris-chat-input::placeholder {
    color: var(--text-light);
}

.polaris-chat-send {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-color);
    border: none;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), transform var(--transition-fast);
    flex-shrink: 0;
}

.polaris-chat-send:hover {
    background: var(--accent-strong);
    transform: scale(1.05);
}

.polaris-chat-send:active {
    transform: scale(var(--click-scale));
}

.polaris-chat-send:disabled {
    background: var(--neutral-200);
    cursor: not-allowed;
    transform: none;
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.polaris-chat-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-light);
    text-align: center;
    padding: var(--spacing-xl);
}

.polaris-chat-empty i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.polaris-chat-empty p {
    font-size: var(--font-size-sm);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Responsive - Mobile
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
    .polaris-chat-widget {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
    }

    .polaris-chat-panel {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
    }

    .polaris-chat-widget.open .polaris-chat-fab {
        display: none;
    }
    
    .polaris-chat-header {
        padding: var(--spacing-md) var(--spacing-lg);
        border-radius: 0;
    }
}

/* --------------------------------------------------------------------------
   Tablet Adjustments
   -------------------------------------------------------------------------- */
@media (min-width: 768px) and (max-width: 1023px) {
    .polaris-chat-panel {
        width: 340px;
        height: 450px;
    }
}

/* --------------------------------------------------------------------------
   Print - Hide Widget
   -------------------------------------------------------------------------- */
@media print {
    .polaris-chat-widget {
        display: none !important;
    }
}

/* --------------------------------------------------------------------------
   Reduced Motion - Accessibility
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .polaris-chat-fab,
    .polaris-chat-panel,
    .polaris-chat-message {
        transition: none;
    }
    
    .polaris-chat-typing .dot {
        animation: none;
        opacity: 0.7;
    }
}


/* --------------------------------------------------------------------------
   Sugestões Contextuais - Sprint AI-07
   -------------------------------------------------------------------------- */
.polaris-chat-suggestions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: 0 var(--spacing-xs);
}

.polaris-chat-suggestions-label {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin: 0;
    text-align: center;
}

.polaris-chat-suggestions-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
}

.polaris-chat-suggestion-chip {
    background: var(--neutral-50);
    border: 1px solid var(--border-soft);
    border-radius: 16px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    max-width: 100%;
    text-align: left;
    line-height: 1.4;
}

.polaris-chat-suggestion-chip:hover {
    background: var(--primary-color);
    color: var(--neutral-50);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(46, 48, 79, 0.2);
}

.polaris-chat-suggestion-chip:active {
    transform: scale(var(--click-scale));
}

.polaris-chat-suggestion-chip:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(46, 48, 79, 0.2);
}

/* Ajuste para mobile */
@media (max-width: 767px) {
    .polaris-chat-suggestions-chips {
        flex-direction: column;
        align-items: stretch;
    }
    
    .polaris-chat-suggestion-chip {
        text-align: center;
    }
}


/* --------------------------------------------------------------------------
   Feedback de Respostas - Sprint AI-07
   -------------------------------------------------------------------------- */
.polaris-chat-message-content {
    flex: 1;
}

.polaris-chat-feedback {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-xs);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.polaris-chat-feedback-btn {
    background: transparent;
    border: 1px solid var(--border-soft);
    border-radius: 4px;
    padding: 4px 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.polaris-chat-feedback-btn:hover:not(:disabled) {
    background: var(--neutral-100);
}

.polaris-chat-feedback-btn.positive:hover:not(:disabled) {
    background: rgba(64, 223, 128, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.polaris-chat-feedback-btn.negative:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
    color: #ef4444;
}

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

.polaris-chat-feedback-success {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--accent-color);
}

.polaris-chat-feedback-info {
    font-size: var(--font-size-xs);
    color: var(--text-light);
}

/* Ajuste para mensagens do assistente com feedback */
.polaris-chat-message.assistant {
    display: flex;
    flex-direction: column;
}


/* --------------------------------------------------------------------------
   Modo de Voz - Sprint AI-07
   -------------------------------------------------------------------------- */
.polaris-chat-voice {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--border-soft);
    color: var(--text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.polaris-chat-voice:hover {
    background: var(--neutral-100);
    color: var(--text-color);
    border-color: var(--neutral-300);
}

.polaris-chat-voice:active {
    transform: scale(var(--click-scale));
}

/* Estado gravando */
.polaris-chat-voice.recording {
    background: #ef4444;
    border-color: #ef4444;
    color: white;
    animation: pulse-recording 1.5s infinite;
}

.polaris-chat-voice.recording:hover {
    background: #dc2626;
    border-color: #dc2626;
    color: white;
}

@keyframes pulse-recording {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    }
}

/* Estado não suportado */
.polaris-chat-voice:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.polaris-chat-voice:disabled:hover {
    background: transparent;
    color: var(--text-light);
    border-color: var(--border-soft);
}

/* Indicador de transcrição */
.polaris-chat-voice-status {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--neutral-800);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: var(--font-size-xs);
    white-space: nowrap;
    margin-bottom: 4px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.polaris-chat-voice.recording .polaris-chat-voice-status {
    opacity: 1;
    visibility: visible;
}

/* Ajuste para input area com botão de voz */
.polaris-chat-input-area {
    position: relative;
}