/* ==========================================================================
   TrocaDireta — Layout: containers, header, footer, shells de área
   Mobile-first. Ajustes de breakpoint em responsive.css
   ========================================================================== */

/* ---- Containers ---- */
.container {
    width: min(var(--container), 100% - 2 * var(--gutter));
    margin-inline: auto;
}

.container--narrow { width: min(var(--container-narrow), 100% - 2 * var(--gutter)); }
.container--form { width: min(var(--container-form), 100% - 2 * var(--gutter)); }

.section {
    padding-block: var(--space-12);
}

.section--tight { padding-block: var(--space-8); }
.section--alt { background: var(--color-surface-alt); }
.section--ink { background: var(--color-ink); color: #e9f0f6; }
.section--ink :is(h1, h2, h3, h4) { color: #fff; }

.section__head {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    justify-content: space-between;
    gap: var(--space-3) var(--space-6);
    margin-bottom: var(--space-6);
}

.section__title {
    font-size: var(--fs-2xl);
}

.section__lead {
    max-width: 56ch;
    color: var(--color-ink-soft);
    margin-top: var(--space-2);
}

.section__link {
    font-weight: var(--fw-bold);
    text-decoration: none;
    white-space: nowrap;
}

.section__link:hover { text-decoration: underline; }

/* ---- Utilitários de fluxo ---- */
.stack > * + * { margin-top: var(--stack-gap, var(--space-4)); }
.stack--sm { --stack-gap: var(--space-2); }
.stack--lg { --stack-gap: var(--space-8); }

.cluster {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--cluster-gap, var(--space-3));
}

.cluster--between { justify-content: space-between; }
.cluster--end { justify-content: flex-end; }

.grid {
    display: grid;
    gap: var(--grid-gap, var(--space-6));
    grid-template-columns: repeat(auto-fill, minmax(min(var(--grid-min, 280px), 100%), 1fr));
}

.grid--coupons { --grid-min: 320px; --grid-gap: var(--space-5); }
.grid--stores { --grid-min: 220px; }
.grid--stats { --grid-min: 180px; --grid-gap: var(--space-4); }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }

.split {
    display: grid;
    gap: var(--space-8);
    grid-template-columns: 1fr;
}

.prose {
    max-width: var(--measure);
    line-height: var(--lh-loose);
}

.prose > * + * { margin-top: var(--space-4); }
.prose h2 { margin-top: var(--space-10); font-size: var(--fs-xl); }
.prose h3 { margin-top: var(--space-8); font-size: var(--fs-lg); }
.prose ul,
.prose ol { padding-left: 1.25em; }
.prose li + li { margin-top: var(--space-2); }

.muted { color: var(--color-ink-muted); }
.text-center { text-align: center; }

/* ==========================================================================
   Header público
   ========================================================================== */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: rgba(244, 248, 253, 0.94);
    backdrop-filter: saturate(1.4) blur(10px);
    -webkit-backdrop-filter: saturate(1.4) blur(10px);
    border-bottom: 1px solid var(--color-line);
}

.header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-height: var(--header-h);
}

.header__nav {
    display: none;
    align-items: center;
    gap: var(--space-1);
    margin-left: var(--space-4);
}

.header__link {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--color-ink);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-sm);
    text-decoration: none;
}

.header__link:hover { background: var(--color-bg-deep); color: var(--color-ink-strong); }
.header__link[aria-current="page"] { color: var(--color-primary-strong); }

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: auto;
}

.header__city {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-ink);
}

.header__city::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.header__toggle {
    display: inline-grid;
    place-items: center;
    width: var(--tap);
    height: var(--tap);
    border-radius: var(--radius-sm);
    color: var(--color-ink);
}

.header__toggle:hover { background: var(--color-bg-deep); }

/* Menu mobile (drawer) */
.drawer {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: var(--z-drawer);
    width: min(320px, 86vw);
    padding: var(--space-6) var(--space-5);
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    overflow-y: auto;
}

.drawer.is-open { transform: none; }

.drawer__nav {
    display: grid;
    gap: var(--space-1);
    margin-top: var(--space-6);
}

.drawer__nav a {
    padding: var(--space-3) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--color-ink);
    font-weight: var(--fw-semibold);
    text-decoration: none;
}

.drawer__nav a:hover { background: var(--color-bg-deep); }

.backdrop {
    position: fixed;
    inset: 0;
    z-index: calc(var(--z-drawer) - 1);
    background: rgba(0, 28, 71, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-base) var(--ease-out);
}

.backdrop.is-open { opacity: 1; pointer-events: auto; }

/* ---- Logo ---- */
.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-ink-strong);
    text-decoration: none;
    flex-shrink: 0;
}

.brand__logo {
    display: block;
    width: auto;
    height: 48px;
}

.brand__logo--lg { height: 120px; }

.app__brand .brand__logo { height: 40px; }
.auth__brand .brand__logo { height: 96px; }

/* Logo azul sobre fundo escuro (admin, rodapé): base branca para manter o contraste */
.footer .brand__logo,
.auth__aside .brand__logo,
.area-admin .app__brand .brand__logo { background: #fff; border-radius: 10px; padding: 4px 10px; box-sizing: content-box; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    position: relative;
    margin-top: var(--space-16);
    padding-block: var(--space-12) var(--space-8);
    background: var(--color-ink);
    color: #c9d6e2;
    font-size: var(--fs-sm);
}

/* picote no topo do rodapé */
.footer::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -10px;
    height: 10px;
    background: radial-gradient(circle 6px at 50% 100%, var(--color-ink) 98%, transparent) 0 0 / 22px 10px repeat-x;
}

.footer__grid {
    display: grid;
    gap: var(--space-8);
    grid-template-columns: 1fr;
}

.footer__title {
    margin-bottom: var(--space-3);
    color: #fff;
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
}

.footer__list {
    display: grid;
    gap: var(--space-2);
    list-style: none;
    padding: 0;
}

.footer a {
    color: #c9d6e2;
    text-decoration: none;
}

.footer a:hover { color: var(--color-highlight); }

.footer .brand { color: #fff; }

.footer__tagline {
    margin-top: var(--space-3);
    max-width: 32ch;
    color: #9fb1c2;
}

.footer__bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-3);
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px dashed rgba(255, 255, 255, 0.18);
    color: #8ea2b5;
    font-size: var(--fs-xs);
}

/* ==========================================================================
   App shell (cliente / lojista / admin)
   ========================================================================== */
.app {
    display: grid;
    min-height: 100dvh;
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
}

.app__sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: var(--z-drawer);
    width: var(--sidebar-w);
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border-right: 1px solid var(--color-line);
    transform: translateX(-100%);
    transition: transform var(--dur-slow) var(--ease-out);
    overflow-y: auto;
}

.app__sidebar.is-open { transform: none; box-shadow: var(--shadow-lg); }

.app__brand {
    display: flex;
    align-items: center;
    min-height: var(--header-h);
    padding-inline: var(--space-5);
    border-bottom: 1px dashed var(--color-border);
}

.app__topbar {
    min-width: 0;
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: var(--header-h);
    padding-inline: var(--gutter);
    background: rgba(244, 248, 253, 0.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-line);
}

.app__topbar-title {
    min-width: 0;
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app__topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: auto;
}

.app__main {
    min-width: 0;
    padding: var(--space-6) var(--gutter) var(--space-16);
}

.app__content {
    width: 100%;
    max-width: 1180px;
    margin-inline: auto;
}

/* Navegação lateral */
.sidenav {
    display: grid;
    gap: var(--space-1);
    padding: var(--space-4) var(--space-3);
}

.sidenav__group {
    margin: var(--space-5) var(--space-3) var(--space-2);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--color-ink-muted);
}

.sidenav__group:first-child { margin-top: 0; }

.sidenav__link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: 40px;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--color-ink-soft);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    text-decoration: none;
    transition: background var(--dur-fast), color var(--dur-fast);
}

.sidenav__link svg { width: 18px; height: 18px; flex-shrink: 0; }

.sidenav__link:hover {
    background: var(--color-bg);
    color: var(--color-ink-strong);
}

.sidenav__link[aria-current="page"],
.sidenav__link.is-active {
    background: var(--color-primary-soft);
    color: var(--color-primary-strong);
}

.sidenav__badge {
    margin-left: auto;
    min-width: 22px;
    padding: 0 6px;
    border-radius: var(--radius-pill);
    background: var(--color-primary);
    color: #fff;
    font-size: var(--fs-2xs);
    font-weight: var(--fw-bold);
    line-height: 20px;
    text-align: center;
}

.app__sidebar-foot {
    margin-top: auto;
    padding: var(--space-4) var(--space-5);
    border-top: 1px dashed var(--color-border);
}

/* Cabeçalho de página dentro do app */
.page-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.page-head__title {
    font-size: var(--fs-2xl);
}

.page-head__desc {
    margin-top: var(--space-1);
    color: var(--color-ink-soft);
    max-width: 60ch;
}

.page-head__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    padding: 0;
    list-style: none;
    font-size: var(--fs-sm);
    color: var(--color-ink-muted);
}

.breadcrumb li + li::before {
    content: "/";
    margin-right: var(--space-2);
    color: var(--color-border-strong);
}

.breadcrumb a { color: var(--color-ink-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary-strong); }

/* ==========================================================================
   Shell de autenticação (login/cadastro)
   ========================================================================== */
.auth {
    display: grid;
    min-height: 100dvh;
    grid-template-columns: 1fr;
}

.auth__aside {
    display: none;
}

.auth__main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-8) var(--gutter);
}

.auth__panel {
    width: min(var(--container-form), 100%);
    margin-inline: auto;
}

.auth__brand { margin-bottom: var(--space-8); }

.auth__title { font-size: var(--fs-2xl); }

.auth__lead {
    margin-top: var(--space-2);
    margin-bottom: var(--space-6);
    color: var(--color-ink-soft);
}

.auth__alt {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px dashed var(--color-border);
    font-size: var(--fs-sm);
    color: var(--color-ink-soft);
    text-align: center;
}

.login-options { margin-top: var(--space-5); }
.login-options .auth__alt { margin-top: var(--space-4); }

/* Compatibilidade com layouts atuais (page.php / form.php) */
.shell {
    width: min(920px, 100% - 2 * var(--gutter));
    margin: var(--space-12) auto;
    padding: var(--space-8) var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.shell h1 { margin-bottom: var(--space-4); }
.eyebrow { color: var(--color-primary-strong); font-weight: var(--fw-bold); font-size: var(--fs-sm); margin-bottom: var(--space-2); }

/* ---- Seletor de cidade no header ---- */
.city-picker .header__city { cursor: pointer; }
.city-picker .dropdown__menu svg { display: inline-block; width: 16px; height: 16px; vertical-align: -3px; margin-right: 6px; color: var(--color-primary); }