/* =========================================================================
   Shell da aplicacao: reset, topbar, sidebar, area de conteudo e grid.
   ========================================================================= */

/* ------------------------------- reset --------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font);
    font-size: 14px;
    color: var(--text-dark);
    background: var(--app-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Foco visivel consistente em toda a aplicacao. */
:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
    border-radius: var(--radius-sm);
}

/* ------------------------------- topbar -------------------------------- */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 30;
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--topbar-bg);
}

/* Faixa da marca: mesma largura da sidebar, para o logo alinhar com o menu. */
.topbar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    width: var(--sidebar-w);
    height: 100%;
    padding: 0 16px;
    flex-shrink: 0;
}

.topbar__logo {
    height: 34px;
    width: auto;
    display: block;
}

/* Botao hamburguer: some no desktop, aparece abaixo de 768px. */
.topbar__hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--text-light);
    font-size: 22px;
    border-radius: var(--radius-sm);
}

.topbar__hamburger:hover {
    background: var(--sidebar-bg-hover);
}

.topbar__user {
    position: relative;
    margin-right: 16px;
}

.topbar__user-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 8px;
    background: transparent;
    border: none;
    color: var(--text-light);
    border-radius: var(--radius-sm);
}

.topbar__user-trigger:hover {
    background: var(--sidebar-bg-hover);
}

.topbar__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.topbar__user-name {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 15px;
}

.topbar__user-caret {
    font-size: 14px;
    color: var(--text-muted-light);
}

/* ------------------------------- sidebar ------------------------------- */
.sidebar {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    z-index: 20;
    width: var(--sidebar-w);
    height: calc(100vh - var(--topbar-h));
    overflow-y: auto;
    background: var(--sidebar-bg);
}

.sidebar__item {
    position: relative;
}

.sidebar__link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-light);
    font-size: 14px;
}

.sidebar__link:hover {
    background: var(--sidebar-bg-hover);
}

.sidebar__icon {
    font-size: 18px;
    color: var(--text-light);
    flex-shrink: 0;
    line-height: 1;
}

.sidebar__label {
    flex: 1;
    min-width: 0;
}

/* Item ativo: fundo mais escuro + barra vertical de 3px na esquerda. */
.sidebar__item--active > .sidebar__link {
    background: var(--sidebar-active);
}

.sidebar__item--active > .sidebar__link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
}

/* Botao +/- dos itens com submenu.
   Posicionado sobre a linha do link, a direita — e irmao do <a>, nao filho. */
.sidebar__toggle {
    position: absolute;
    top: 12px;
    right: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--text-muted-light);
    border-radius: 2px;
    color: var(--text-light);
    font-size: 12px;
    line-height: 1;
    flex-shrink: 0;
}

.sidebar__toggle:hover {
    background: var(--sidebar-bg-hover);
}

/* Reserva espaco para o botao +/- apenas nos itens que o possuem. */
.sidebar__item:has(.sidebar__toggle) > .sidebar__link {
    padding-right: 44px;
}

/* Submenu: animacao de altura em ~200ms, fechado por padrao. */
.sidebar__submenu {
    background: var(--sidebar-active);
    max-height: 0;
    overflow: hidden;
    transition: max-height 200ms ease;
}

.sidebar__item--open > .sidebar__submenu {
    max-height: 400px;
}

.sidebar__sublink {
    display: block;
    position: relative;
    padding: 10px 16px 10px 40px;
    color: var(--text-light);
    font-size: 13px;
}

/* Traco curto de 8px a esquerda de cada item-filho. */
.sidebar__sublink::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 50%;
    width: 8px;
    border-top: 1px solid var(--text-muted-light);
}

.sidebar__sublink:hover {
    background: var(--sidebar-bg-hover);
}

/* Overlay escuro do modo off-canvas (<768px). */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: var(--topbar-h) 0 0 0;
    z-index: 19;
    background: var(--overlay);
}

.sidebar-overlay--visible {
    display: block;
}

/* --------------------------- area de conteudo -------------------------- */
.content {
    margin-left: var(--sidebar-w);
    margin-top: var(--topbar-h);
    min-height: calc(100vh - var(--topbar-h));
    padding: var(--gap);
    background: var(--app-bg);
}

/* --------------------- pagina simples (sem cards) ----------------------- */
/* Telas de listagem escrevem direto sobre o fundo da aplicacao, com um
   respiro lateral maior que o das telas de dashboard. */
.pagina {
    padding: 16px 24px;
}

.pagina__titulo {
    margin: 0 0 16px;
    font-size: 26px;
    font-weight: 400;
    color: var(--text-dark);
}

.acoes {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

/* ------------------------ grid de clientes ----------------------------- */
/* Colunas de largura fixa: os cards NAO esticam para preencher a linha.
   Com poucos clientes, o espaco a direita fica vazio de proposito. */
.clientes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--client-card-w), var(--client-card-w)));
    gap: 20px;
    justify-content: start;
}

/* ------------------------- drawer de filtro ---------------------------- */
.drawer {
    position: fixed;
    top: var(--topbar-h);
    right: 0;
    z-index: 50;
    width: var(--drawer-w);
    height: calc(100vh - var(--topbar-h));
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    box-shadow: -2px 0 8px rgba(0, 0, 0, .10);
    transform: translateX(100%);
    transition: transform 250ms ease;
}

.drawer--open {
    transform: translateX(0);
}

.drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 2px solid var(--primary);
    flex-shrink: 0;
}

.drawer__titulo {
    margin: 0;
    font-size: 22px;
    font-weight: 400;
    color: var(--accent-link);
}

.drawer__fechar {
    background: transparent;
    border: none;
    padding: 0 4px;
    font-size: 24px;
    line-height: 1;
    color: var(--text-dark);
}

.drawer__body {
    padding: 20px;
    overflow-y: auto;
}

/* Overlay escuro: so existe no modo estreito (<768px). */
.drawer-overlay {
    display: none;
    position: fixed;
    inset: var(--topbar-h) 0 0 0;
    z-index: 49;
    background: var(--overlay);
}

/* ------------------------------- grid ---------------------------------- */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--gap);
}

.col-4  { grid-column: span 4; }
.col-8  { grid-column: span 8; }
.col-12 { grid-column: span 12; }

/* ---------------------------- breakpoints ------------------------------ */

/* 768px–1199px: todos os cards ocupam a largura total, na ordem de leitura. */
@media (max-width: 1199px) {
    .col-4,
    .col-8 {
        grid-column: span 12;
    }
}

/* <768px: as tres primeiras colunas de dados acompanham o scroll horizontal.
   Celulas sticky sao transparentes por padrao — sem fundo explicito o conteudo
   rolaria por baixo delas. O fundo respeita a zebra da tabela (AD-105). */
@media (max-width: 767px) {
    .col-fixa {
        position: sticky;
        z-index: 2;
        background: var(--card-bg);
    }

    .col-fixa--1 { left: 34px; }
    .col-fixa--2 { left: 116px; }
    .col-fixa--3 { left: 198px; }

    .tabela tbody tr:nth-child(even) .col-fixa {
        background: var(--row-stripe);
    }

    .tabela tbody tr:hover .col-fixa {
        background: var(--row-hover);
    }

    /* O cabecalho fixo precisa ficar acima das celulas fixas do corpo. */
    .tabela thead .col-fixa {
        z-index: 3;
    }
}

/* <600px: cards de cliente passam a acompanhar a largura da coluna. */
@media (max-width: 599px) {
    .clientes-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

/* <768px: sidebar off-canvas e conteudo em largura total. */
@media (max-width: 767px) {
    /* Drawer ocupa a tela inteira e ganha overlay escuro. */
    .drawer {
        width: 100%;
    }

    .drawer-overlay--visible {
        display: block;
    }

    .pagina {
        padding: 16px;
    }

    .topbar__hamburger {
        display: flex;
    }

    .topbar__brand {
        width: auto;
        gap: 12px;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 200ms ease;
    }

    .sidebar--open {
        transform: translateX(0);
    }

    .content {
        margin-left: 0;
    }
}