/* =====================================================
   管理者画面・トースト通知
   ===================================================== */

.admin-layout {
    display: grid;
    grid-template-columns: minmax(260px, 0.7fr) minmax(420px, 1.3fr);
    gap: 22px;
    margin-top: 22px;
}

.admin-user-form {
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--surface-muted);
}

.admin-user-form .field {
    margin-top: 14px;
}

.toast {
    position: fixed;
    z-index: 1000;
    top: 18px;
    left: 50%;
    transform: translate(-50%, -16px);
    max-width: min(480px, calc(100% - 32px));
    padding: 12px 18px;
    border-radius: 12px;
    background: #172033;
    color: #fff;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

.toast.success {
    background: #17663b;
}

.toast.error {
    background: #a52d2d;
}

@media (max-width: 900px) {
    .dashboard-grid,
    .admin-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .site-header {
        padding: 28px 16px 20px;
    }

    .app-shell,
    .login-layout {
        width: min(100% - 20px, 1180px);
    }

    .card,
    .login-box {
        padding: 18px;
        border-radius: 15px;
    }

    .user-bar,
    .section-heading-between,
    .password-panel summary {
        align-items: stretch;
        flex-direction: column;
    }

    .user-bar .button {
        width: 100%;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-buttons {
        flex-direction: column;
    }

    .form-buttons .button {
        width: 100%;
    }

    .calendar-header {
        grid-template-columns: 72px 1fr 72px;
        gap: 5px;
    }

    .calendar-header button {
        padding: 6px 3px;
        font-size: 0.76rem;
    }

    .calendar-grid {
        gap: 3px;
    }

    .calendar-day,
    .calendar-empty {
        min-height: 47px;
    }

    .calendar-day {
        padding: 5px;
        font-size: 0.78rem;
    }

    th,
    td {
        padding: 10px 8px;
        font-size: 0.8rem;
    }

    .action-group {
        flex-direction: column;
    }
}