/**
 * Shell público — estrutura para páginas sem sessão
 */
.shell-public {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.shell-public__header {
    flex-shrink: 0;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--depth-border);
    background: rgba(2, 6, 23, 0.35);
    backdrop-filter: blur(12px);
}

.shell-public__header-inner {
    max-width: 72rem;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.shell-public__brand {
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--text);
    text-decoration: none;
}

.shell-public__brand span {
    color: var(--accent);
}

.shell-public__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.shell-public__action {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
}

.shell-public__action:hover {
    text-decoration: underline;
}

.shell-public__main {
    flex: 1;
    display: grid;
    place-items: center;
    padding: var(--space-6);
    width: 100%;
}

/* Hero / landing: cartão largo centrado */
.shell-public--hero .shell-public__main {
    align-content: center;
}

.shell-public--hero .card {
    width: min(100%, 980px);
}

/* Auth: formulário centrado */
.shell-public--auth .shell-public__main {
    place-items: center;
}

.shell-public--auth .auth-card {
    width: min(92vw, 520px);
    padding: var(--space-8);
}

/* Erros simples: bloco estreito */
.shell-public--simple .shell-public__main {
    place-items: center;
}

.shell-public--simple .card {
    width: min(100%, 520px);
    padding: var(--space-8);
}

.shell-public__footer {
    flex-shrink: 0;
    padding: var(--space-4) var(--space-6);
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    border-top: 1px solid var(--depth-border);
    background: rgba(2, 6, 23, 0.25);
}