/* ===========================
   Sistema de Mensagens - Design Moderno e Elegante
   =========================== */

:root {
    --primary-gradient: linear-gradient(135deg, #1a1f36 0%, #667eea 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #00c9ff 0%, #92fe9d 100%);
    --dark-gradient: linear-gradient(135deg, #2d3436 0%, #000000 100%);
    --light-gradient: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);   
    
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #95a5a6;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.15);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
    
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --border-radius-full: 50px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===========================
   Container de Conversas
   =========================== */

.conversas-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 30px;
    animation: fadeInUp 0.5s ease;
}

.conversas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bg-tertiary);
}

.conversas-header h2 {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.conversas-count {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--border-radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

/* ===========================
   Lista de Conversas
   =========================== */

.list-group {
    border: none;
    border-radius: 0;
}

.conversa-item {
    position: relative;
    background: var(--bg-primary);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 15px;
    transition: all var(--transition-normal);
    overflow: hidden;
}

.conversa-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transition: transform var(--transition-normal);
}

.conversa-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--nga-primary-color);
}

.conversa-item:hover::before {
    transform: scaleY(1);
}

.conversa-item.nao-lida {
    background: linear-gradient(135deg, #ffffff 0%, #e6f2ff 100%);
    border-color: var(--nga-primary-color);
    box-shadow: var(--shadow-md);
}

.conversa-item.nao-lida::before {
    transform: scaleY(1);
    background: var(--secondary-gradient);
}

.avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin-right: 15px;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.conversa-item:hover .avatar {
    transform: scale(1.1) rotate(5deg);
}

.nome-outro-usuario {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.imovel-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.imovel-info i {
    color: var(--nga-primary-color);
    margin-right: 5px;
}

.ultima-mensagem {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.4;
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.data {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
}

.badge-nao-lida {
    background: var(--secondary-gradient);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 10px;
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-sm);
    animation: pulse 2s infinite;
}

/* ===========================
   Sem Conversas
   =========================== */

.sem-conversas {
    text-align: center;
    padding: 80px 20px;
    animation: fadeIn 0.5s ease;
}

.sem-conversas-icon {
    font-size: 5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

.sem-conversas h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 10px;
}

.sem-conversas p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===========================
   Container do Chat
   =========================== */

.chat-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    height: 75vh;
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.5s ease;
}

.chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.chat-header .avatar {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.chat-title {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.chat-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
    margin: 5px 0 0 0;
    display: flex;
    align-items: center;
}

.chat-subtitle i {
    margin-right: 5px;
    opacity: 0.8;
}

#chat-options {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

#chat-options:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* ===========================
   Área de Mensagens
   =========================== */

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}

.message {
    margin-bottom: 20px;
    max-width: 70%;
    animation: messageSlide 0.3s ease;
}

.message-sent {
    margin-left: auto;
    text-align: right;
}

.message-sent > div:first-child {
    background: var(--primary-gradient);
    color: white;
    padding: 12px 18px;
    border-radius: 20px 20px 4px 20px;
    display: inline-block;
    text-align: left;
    box-shadow: var(--shadow-md);
    position: relative;
    animation: messageBounce 0.3s ease;
}

.message-received > div:first-child {
    background: white;
    color: var(--text-primary);
    padding: 12px 18px;
    border-radius: 20px 20px 20px 4px;
    display: inline-block;
    box-shadow: var(--shadow-md);
    position: relative;
    animation: messageBounce 0.3s ease;
}

.message-info {
    font-size: 0.75rem;
    margin-top: 8px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 5px;
}

.message-sent .message-info {
    justify-content: flex-end;
}

.message-info i {
    font-size: 0.85rem;
}

/* ===========================
   Sem Mensagens
   =========================== */

.no-messages {
    text-align: center;
    padding: 100px 20px;
    animation: fadeIn 0.5s ease;
}

.no-messages-icon {
    font-size: 5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

.no-messages h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 10px;
}

.no-messages p {
    color: var(--text-secondary);
}

/* ===========================
   Formulário de Mensagem
   =========================== */

.message-form {
    padding: 20px;
    background: white;
    border-top: 1px solid var(--bg-tertiary);
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.message-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--border-radius-full);
    resize: none;
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    max-height: 120px;
    line-height: 1.4;
}

.message-input:focus {
    outline: none;
    border-color: var(--nga-primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.send-button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gradient);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.send-button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.send-button:active {
    transform: scale(0.95);
}

.send-button i {
    font-size: 1.2rem;
    transition: transform var(--transition-normal);
}

.send-button:hover i {
    transform: translateX(2px);
}

/* ===========================
   Indicador de Digitação
   =========================== */

.typing-indicator {
    display: inline-flex;
    padding: 15px 20px;
    background: white;
    border-radius: 20px 20px 20px 4px;
    box-shadow: var(--shadow-md);
    align-items: center;
    gap: 4px;
    margin-bottom: 20px;
}

.typing-indicator span {
    height: 10px;
    width: 10px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: inline-block;
    animation: typingPulse 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: -0.16s;
}

/* ===========================
   Nova Mensagem
   =========================== */

.message-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: fadeInUp 0.5s ease;
}

.message-header {
    background: var(--nga-primary-color);
    color: white;
    padding: 25px;
}

.message-header h4 {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.message-header .avatar {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.avatar-sm {
    width: 35px;
    height: 35px;
    font-size: 1rem;
}

.message-header p {
    color: rgba(255, 255, 255, 0.95);
}

.message-header strong {
    color: white;
    font-weight: 600;
}

.message-header .badge {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 4px 10px;
    font-weight: 600;
}

.message-body {
    padding: 30px;
    background: var(--bg-secondary);
}

.message-input-container {
    margin-bottom: 25px;
}

.message-input-container label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.message-input-container textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
    resize: vertical;
}

.message-input-container textarea:focus {
    outline: none;
    border-color: var(--nga-primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.message-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.message-actions .btn {
    padding: 10px 25px;
    border-radius: var(--border-radius-full);
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.message-actions .btn-outline-secondary {
    background: white;
    border: 2px solid var(--bg-tertiary);
    color: var(--text-secondary);
}

.message-actions .btn-outline-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}


/* ===========================
   Animações
   =========================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes messageBounce {
    0% {
        transform: scale(0.9);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes typingPulse {
    0%, 80%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    40% {
        transform: scale(1.3);
        opacity: 0.7;
    }
}

/* ===========================
   Responsividade
   =========================== */

@media (max-width: 768px) {
    .conversas-container {
        padding: 20px;
        border-radius: var(--border-radius);
    }
    
    .conversas-header h2 {
        font-size: 1.5rem;
    }
    
    .chat-container {
        height: 85vh;
        border-radius: 0;
    }
    
    .chat-messages {
        padding: 20px 15px;
    }
    
    .message {
        max-width: 85%;
    }
    
    .message-form {
        padding: 15px;
    }
    
    .conversa-item {
        padding: 15px;
    }
    
    .avatar {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .message-card {
        border-radius: 0;
    }
}

@media (max-width: 576px) {
    .conversas-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .message {
        max-width: 90%;
    }
    
    .send-button {
        width: 45px;
        height: 45px;
    }
    
    .message-actions {
        flex-direction: column-reverse;
    }
    
    .message-actions .btn {
        width: 100%;
    }
}

/* ===========================
   Dark Mode Support (Opcional)
   =========================== */

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #404040;
        --text-primary: #e0e0e0;
        --text-secondary: #b0b0b0;
        --text-light: #808080;
    }
    
    .chat-messages {
        background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    }
    
    .message-received > div:first-child {
        background: #2d2d2d;
        color: #e0e0e0;
    }
}

/* ===========================
   Melhorias de Acessibilidade
   =========================== */

.message-input:focus-visible,
.send-button:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--nga-primary-color);
    outline-offset: 2px;
}

/* Suporte para motion reduced */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===========================
   Utilitários Extras
   =========================== */

.shimmer {
    background: linear-gradient(90deg, 
        rgba(255,255,255,0) 0%, 
        rgba(255,255,255,0.2) 20%, 
        rgba(255,255,255,0.5) 60%, 
        rgba(255,255,255,0)
    );
    transform: translateX(-100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

.glass-morphism {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===========================
   Estilos Adicionais para Chat Unificado
   =========================== */

/* Container Principal Unificado */
.chat-unified-wrapper {
    position: relative;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
}

/* Indicador de Conexão */
.connection-status {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 5px 12px;
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    color: #4CAF50;
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 100;
    transition: all var(--transition-normal);
}

.connection-status.offline {
    background: rgba(244, 67, 54, 0.1);
    border-color: rgba(244, 67, 54, 0.3);
    color: #F44336;
}

.connection-status i {
    font-size: 8px;
}

/* Badge de Nova Mensagem Global */
.global-unread-badge {
    position: fixed;
    top: 70px;
    right: 20px;
    background: var(--danger-color);
    color: white;
    padding: 8px 12px;
    border-radius: var(--border-radius-full);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideInRight 0.3s ease, pulse 2s infinite;
    cursor: pointer;
}

@keyframes slideInRight {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Melhoria para Scroll Suave */
.smooth-scroll {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--nga-primary-color) var(--bg-tertiary);
}

/* Estado de Carregamento Elegante */
.elegant-loader {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.elegant-loader .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--nga-primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Tooltip Customizado */
.custom-tooltip {
    position: relative;
}

.custom-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 0.75rem;
    border-radius: var(--border-radius);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.custom-tooltip:hover::after {
    opacity: 1;
}

/* Animação de Nova Mensagem Recebida */
@keyframes newMessagePulse {
    0% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(102, 126, 234, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0);
    }
}

.new-message-animation {
    animation: newMessagePulse 1s ease;
}

/* Melhorias de Acessibilidade para Focus */
.focus-visible:focus {
    outline: 3px solid var(--nga-primary-color);
    outline-offset: 2px;
}

/* Transições Suaves para Mudanças de Estado */
.state-transition {
    transition: all var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
}

/* Efeito de Hover Melhorado para Conversas */
.conversation-item-enhanced:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

/* Badge de Status do Usuário */
.user-status-badge {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    position: absolute;
    bottom: 2px;
    right: 2px;
    border: 2px solid white;
}

.user-status-badge.online {
    background: #4CAF50;
}

.user-status-badge.away {
    background: #FFC107;
}

.user-status-badge.busy {
    background: #F44336;
}

.user-status-badge.offline {
    background: #9E9E9E;
}