/* ==========================================================================
   EMAILCDL.HTML - Interface do Webmail Institucional
   ========================================================================== */

/* Layout Dividido em Três Blocos (Menu, Lista de E-mails, Visualização) */
.mail-layout {
    display: flex;
    height: calc(100vh - 120px); /* Ocupa o espaço restante da tela */
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 20px;
}

/* Coluna 1: Pastas de Email (Sidebar Esquerda) */
.mail-sidebar {
    width: 220px;
    background-color: #f8fafc;
    border-right: 1px solid #e2e8f0;
    padding: 20px 10px;
    flex-shrink: 0;
}

.btn-compose {
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 123, 255, 0.2);
}

.mail-folders .nav-link {
    color: #475569;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 500;
}

.mail-folders .nav-link:hover {
    background-color: #f1f5f9;
    color: #0f172a;
}

.mail-folders .nav-link.active {
    background-color: #e0f2fe;
    color: #0284c7;
}

/* Coluna 2: Lista de Mensagens (Centro) */
.mail-list-panel {
    width: 350px;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.mail-list-scroll {
    overflow-y: auto;
    flex-grow: 1;
}

.mail-item {
    padding: 15px 20px;
    border-bottom: 1px solid #f1f5f9;
    cursor: pointer;
    transition: background 0.15s ease;
}

.mail-item:hover {
    background-color: #f8fafc;
}

.mail-item.unread {
    background-color: #f0fdf4; /* Destaque leve para e-mails não lidos */
    border-left: 3px solid #16a34a;
}

.mail-item.unread .mail-sender {
    font-weight: 700;
    color: #0f172a;
}

.mail-item-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #64748b;
    margin-bottom: 4px;
}

.mail-sender {
    font-size: 0.9rem;
    color: #334155;
    font-weight: 500;
}

.mail-subject {
    font-size: 0.85rem;
    color: #0f172a;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mail-snippet {
    font-size: 0.8rem;
    color: #64748b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Coluna 3: Painel de Visualização do Conteúdo (Direita) */
.mail-view-panel {
    flex-grow: 1;
    padding: 30px;
    overflow-y: auto;
    background-color: #ffffff;
}

.mail-view-header {
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.mail-view-subject {
    font-size: 1.4rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 15px;
}

.mail-view-body {
    font-size: 0.95rem;
    color: #334155;
    line-height: 1.6;
}