/* Shell da aplicação: mobile-first (bottom nav) evoluindo para sidebar em telas grandes. */

.app-shell {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

.app-topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 0 var(--space-4);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.app-topbar-title {
    font-weight: 600;
    font-size: 1.05rem;
}

.app-topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.app-sidebar {
    display: none;
}

.app-main {
    flex: 1;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-4) calc(var(--bottom-nav-height) + var(--space-5));
}

.bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    height: var(--bottom-nav-height);
    display: flex;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    font-size: 0.72rem;
    color: var(--color-text-muted);
}

.bottom-nav-item[aria-current="page"] {
    color: var(--color-primary);
}

.bottom-nav-item svg {
    width: 22px;
    height: 22px;
}

.fab-container {
    position: fixed;
    right: var(--space-4);
    bottom: calc(var(--bottom-nav-height) + var(--space-4));
    z-index: 25;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-3);
}

.fab {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    border: none;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.fab svg {
    width: 26px;
    height: 26px;
}

.fab-container.open .fab {
    transform: rotate(45deg);
}

.fab-menu {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-2);
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.fab-container.open .fab-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.fab-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-4);
    box-shadow: var(--shadow-sm);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
}

.fab-menu-item:hover {
    text-decoration: none;
}

.fab-menu-item svg {
    width: 18px;
    height: 18px;
}

.fab-menu-item-income svg {
    color: var(--color-positive);
}

.fab-menu-item-expense svg {
    color: var(--color-negative);
}

/* Layout de convidado (login/erros): cartão único centralizado. */
.guest-shell {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-5) var(--space-4);
    gap: var(--space-5);
}

.guest-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: 1.15rem;
}

.guest-card {
    width: 100%;
    max-width: 380px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6) var(--space-5);
}

.guest-footer-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--space-4);
    font-size: 0.9rem;
}

@media (min-width: 1024px) {
    .app-shell {
        flex-direction: row;
    }

    .app-sidebar {
        display: flex;
        flex-direction: column;
        position: sticky;
        top: 0;
        height: 100vh;
        width: var(--sidebar-width);
        flex-shrink: 0;
        background: var(--color-surface);
        border-right: 1px solid var(--color-border);
        padding: var(--space-5) var(--space-3);
    }

    .sidebar-brand {
        display: flex;
        align-items: center;
        gap: var(--space-2);
        font-weight: 700;
        font-size: 1.1rem;
        padding: 0 var(--space-2);
        margin-bottom: var(--space-6);
    }

    .sidebar-nav {
        display: flex;
        flex-direction: column;
        gap: var(--space-1);
        flex: 1;
    }

    .sidebar-link {
        display: flex;
        align-items: center;
        gap: var(--space-3);
        padding: var(--space-3) var(--space-3);
        border-radius: var(--radius-md);
        color: var(--color-text-muted);
        font-weight: 500;
    }

    .sidebar-link:hover {
        background: var(--color-surface-alt);
        text-decoration: none;
    }

    .sidebar-link[aria-current="page"] {
        background: var(--color-surface-alt);
        color: var(--color-primary);
    }

    .sidebar-link svg {
        width: 20px;
        height: 20px;
    }

    .sidebar-link-button {
        width: 100%;
        background: none;
        border: none;
        font: inherit;
        text-align: left;
        cursor: pointer;
    }

    .sidebar-footer {
        border-top: 1px solid var(--color-border);
        padding-top: var(--space-3);
    }

    .app-topbar {
        display: none;
    }

    .bottom-nav {
        display: none;
    }

    .app-main {
        max-width: 1040px;
        padding: var(--space-6) var(--space-6) var(--space-7);
        margin: 0;
        width: 100%;
    }

    .app-main-inner {
        max-width: 1040px;
        margin: 0 auto;
    }

    .fab-container {
        bottom: var(--space-5);
    }
}

@media (min-width: 1440px) {
    .app-main {
        padding-left: var(--space-7);
        padding-right: var(--space-7);
    }
}