/* ============================================================
   RESET E BASE
   ============================================================ */

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

:root {
    --cb-bg:          #f0f2f5;
    --cb-surface:     #ffffff;
    --cb-border:      #e0e0e0;
    --cb-text:        #1a1a1a;
    --cb-text-muted:  #888888;
    --cb-primary:     #075e54;
    --cb-primary-alt: #128c7e;
    --cb-entrada:     #ffffff;
    --cb-saida:       #dcf8c6;
    --cb-danger:      #c0392b;
    --cb-warning:     #e67e22;
    --cb-shadow:      rgba(0,0,0,0.08);
}

html, body { height: 100%; font-family: "Segoe UI", Arial, sans-serif; font-size: 14px; color: var(--cb-text); background: var(--cb-bg); }

.hidden { display: none !important; }

/* ============================================================
   LOGIN
   ============================================================ */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    background: var(--cb-bg);
}

.login-container {
    width: 100%;
    max-width: 380px;
    padding: 1rem;
}

.login-card {
    background: var(--cb-surface);
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 2px 12px var(--cb-shadow);
}

.login-titulo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cb-primary);
    text-align: center;
}

.login-subtitulo {
    text-align: center;
    color: var(--cb-text-muted);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    margin-bottom: 1.5rem;
}

.login-alerta {
    background: #fdecea;
    color: var(--cb-danger);
    border: 1px solid #f5c6cb;
    border-radius: 0.5rem;
    padding: 0.6rem 0.9rem;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.login-campo {
    margin-bottom: 1rem;
}

.login-campo label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--cb-text-muted);
}

.login-campo input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--cb-border);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

.login-campo input:focus { outline: none; border-color: var(--cb-primary-alt); }

.login-btn {
    width: 100%;
    padding: 0.7rem;
    background: var(--cb-primary);
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: background 0.2s;
}

.login-btn:hover { background: var(--cb-primary-alt); }
.login-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ============================================================
   PAINEL — LAYOUT
   ============================================================ */

.painel-body { height: 100%; overflow: hidden; }

.painel-layout {
    display: flex;
    height: 100%;
}

/* ============================================================
   SIDEBAR
   ============================================================ */

.painel-sidebar {
    width: 320px;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    background: var(--cb-surface);
    border-right: 1px solid var(--cb-border);
}

.painel-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--cb-primary);
    color: #fff;
}

.painel-sidebar-titulo { font-size: 1rem; font-weight: 700; }

.painel-btn-sair {
    background: transparent;
    color: #fff;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0.8;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
}

.painel-btn-sair:hover { opacity: 1; background: rgba(255,255,255,0.15); }

.painel-tabs {
    display: flex;
    border-bottom: 1px solid var(--cb-border);
}

.painel-tab {
    flex: 1;
    padding: 0.6rem 0.4rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--cb-text-muted);
    position: relative;
    transition: color 0.2s, border-color 0.2s;
}

.painel-tab.ativo {
    color: var(--cb-primary);
    border-bottom-color: var(--cb-primary);
}

.painel-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.2rem;
    height: 1.2rem;
    background: var(--cb-danger);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 1rem;
    padding: 0 0.3rem;
    margin-left: 0.3rem;
}

.painel-lista {
    flex: 1;
    overflow-y: auto;
    list-style: none;
}

.painel-lista-vazia {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--cb-text-muted);
    font-size: 0.85rem;
}

.painel-conversa-item {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--cb-border);
    cursor: pointer;
    transition: background 0.15s;
}

.painel-conversa-item:hover { background: #f5f5f5; }
.painel-conversa-item.ativo  { background: #e8f5e9; }

.painel-conversa-nome {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.painel-conversa-preview {
    font-size: 0.78rem;
    color: var(--cb-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.painel-conversa-hora {
    font-size: 0.7rem;
    color: var(--cb-text-muted);
    align-self: flex-end;
}

/* ============================================================
   CHAT
   ============================================================ */

.painel-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.painel-chat-vazio {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cb-text-muted);
    font-size: 0.9rem;
    background: var(--cb-bg);
}

.painel-chat-ativo {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.painel-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--cb-surface);
    border-bottom: 1px solid var(--cb-border);
    box-shadow: 0 1px 4px var(--cb-shadow);
}

.painel-chat-info { display: flex; flex-direction: column; gap: 0.1rem; }
.painel-chat-info strong { font-size: 0.95rem; }
.painel-chat-info small  { font-size: 0.75rem; color: var(--cb-text-muted); }

.painel-chat-acoes { display: flex; gap: 0.5rem; }

.painel-btn {
    padding: 0.4rem 0.9rem;
    border: none;
    border-radius: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.painel-btn:hover { opacity: 0.85; }
.painel-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.painel-btn-assumir  { background: var(--cb-primary); color: #fff; }
.painel-btn-finalizar { background: var(--cb-warning); color: #fff; }
.painel-btn-enviar   { background: var(--cb-primary); color: #fff; align-self: flex-end; }

.painel-mensagens {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    background: var(--cb-bg);
}

.mensagem-item {
    display: flex;
    flex-direction: column;
    max-width: 70%;
}

.mensagem-item.entrada { align-self: flex-start; }
.mensagem-item.saida   { align-self: flex-end; }

.mensagem-balao {
    padding: 0.5rem 0.75rem;
    border-radius: 0.75rem;
    font-size: 0.88rem;
    line-height: 1.4;
    word-break: break-word;
}

.mensagem-item.entrada .mensagem-balao {
    background: var(--cb-entrada);
    border-bottom-left-radius: 0.1rem;
    box-shadow: 0 1px 2px var(--cb-shadow);
}

.mensagem-item.saida .mensagem-balao {
    background: var(--cb-saida);
    border-bottom-right-radius: 0.1rem;
    box-shadow: 0 1px 2px var(--cb-shadow);
}

.mensagem-meta {
    font-size: 0.68rem;
    color: var(--cb-text-muted);
    margin-top: 0.15rem;
    padding: 0 0.25rem;
}

.mensagem-item.saida .mensagem-meta { text-align: right; }

.painel-chat-footer {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    padding: 0.75rem 1rem;
    background: var(--cb-surface);
    border-top: 1px solid var(--cb-border);
}

.painel-input-mensagem {
    flex: 1;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--cb-border);
    border-radius: 0.5rem;
    font-size: 0.88rem;
    font-family: inherit;
    resize: none;
    line-height: 1.4;
    max-height: 120px;
    overflow-y: auto;
}

.painel-input-mensagem:focus { outline: none; border-color: var(--cb-primary-alt); }

.painel-conversa-item.nao-lida { border-left: 3px solid var(--cb-danger); }
.painel-conversa-item.nao-lida .painel-conversa-nome { font-weight: 700; }

/* ============================================================
   LOG
   ============================================================ */

.log-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--cb-surface);
    border-bottom: 1px solid var(--cb-border);
}

.log-titulo { font-weight: 600; flex: 1; }

.log-container {
    padding: 20px;
    overflow-x: auto;
}

.log-vazio { color: var(--cb-text-secondary); }

.log-tabela {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    font-family: monospace;
}

.log-tabela th,
.log-tabela td {
    text-align: left;
    padding: 6px 10px;
    border-bottom: 1px solid var(--cb-border);
    vertical-align: top;
}

.log-tabela th { background: var(--cb-bg); font-weight: 600; }

.log-tabela td:first-child  { white-space: nowrap; width: 160px; }
.log-tabela td:nth-child(2) { white-space: nowrap; width: 90px; }
.log-tabela td:nth-child(3) { word-break: break-all; }

.log-nivel-erro  { background: #fff0f0; }
.log-nivel-aviso { background: #fffbe6; }
.log-nivel-info  { background: var(--cb-surface); }